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make indent with 4 caracters instead of 8

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This commit is contained in:
ado
2020-12-26 00:46:42 +01:00
parent 16f4648cb3
commit e406253694
9 changed files with 1688 additions and 1746 deletions
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546
include/ss/converter.hpp
View File

@@ -28,12 +28,12 @@ struct no_validator;
template <typename T>
struct no_validator<T, typename std::enable_if_t<has_m_ss_valid_t<T>>> {
using type = typename member_wrapper<decltype(&T::ss_valid)>::arg_type;
using type = typename member_wrapper<decltype(&T::ss_valid)>::arg_type;
};
template <typename T, typename U>
struct no_validator {
using type = T;
using type = T;
};
template <typename T>
@@ -41,18 +41,17 @@ using no_validator_t = typename no_validator<T>::type;
template <typename... Ts>
struct no_validator_tup {
using type =
typename apply_trait<no_validator, std::tuple<Ts...>>::type;
using type = typename apply_trait<no_validator, std::tuple<Ts...>>::type;
};
template <typename... Ts>
struct no_validator_tup<std::tuple<Ts...>> {
using type = typename no_validator_tup<Ts...>::type;
using type = typename no_validator_tup<Ts...>::type;
};
template <typename T>
struct no_validator_tup<std::tuple<T>> {
using type = no_validator_t<T>;
using type = no_validator_t<T>;
};
template <typename... Ts>
@@ -64,8 +63,8 @@ using no_validator_tup_t = typename no_validator_tup<Ts...>::type;
template <typename... Ts>
struct no_void_tup {
using type =
typename filter_not<std::is_void, no_validator_tup_t<Ts...>>::type;
using type =
typename filter_not<std::is_void, no_validator_tup_t<Ts...>>::type;
};
template <typename... Ts>
@@ -78,12 +77,12 @@ using no_void_tup_t = filter_not_t<std::is_void, Ts...>;
// replace 'validators' and remove void from tuple
template <typename... Ts>
struct no_void_validator_tup {
using type = no_validator_tup_t<no_void_tup_t<Ts...>>;
using type = no_validator_tup_t<no_void_tup_t<Ts...>>;
};
template <typename... Ts>
struct no_void_validator_tup<std::tuple<Ts...>> {
using type = no_validator_tup_t<no_void_tup_t<Ts...>>;
using type = no_validator_tup_t<no_void_tup_t<Ts...>>;
};
template <typename... Ts>
@@ -97,8 +96,8 @@ using no_void_validator_tup_t = typename no_void_validator_tup<Ts...>::type;
// the 'tied' method which is to be used for type deduction when converting
template <typename T, typename... Ts>
struct tied_class {
constexpr static bool value =
(sizeof...(Ts) == 0 && std::is_class_v<T> && has_m_tied<T>::value);
constexpr static bool value =
(sizeof...(Ts) == 0 && std::is_class_v<T> && has_m_tied<T>::value);
};
template <typename... Ts>
@@ -112,286 +111,277 @@ enum class error_mode { String, Bool };
////////////////
class converter {
using string_range = std::pair<const char*, const char*>;
constexpr static auto default_delimiter = ',';
using string_range = std::pair<const char*, const char*>;
constexpr static auto default_delimiter = ',';
public:
using split_input = std::vector<string_range>;
public:
using split_input = std::vector<string_range>;
// parses line with given delimiter, returns a 'T' object created with
// extracted values of type 'Ts'
template <typename T, typename... Ts>
T convert_object(const char* const line,
const std::string& delim = "") {
return to_object<T>(convert<Ts...>(line, delim));
// parses line with given delimiter, returns a 'T' object created with
// extracted values of type 'Ts'
template <typename T, typename... Ts>
T convert_object(const char* const line, const std::string& delim = "") {
return to_object<T>(convert<Ts...>(line, delim));
}
// parses line with given delimiter, returns tuple of objects with
// extracted values of type 'Ts'
template <typename... Ts>
no_void_validator_tup_t<Ts...> convert(const char* const line,
const std::string& delim = "") {
input_ = split(line, delim);
return convert<Ts...>(input_);
}
// parses already split line, returns 'T' object with extracted values
template <typename T, typename... Ts>
T convert_object(const split_input& elems) {
return to_object<T>(convert<Ts...>(elems));
}
// parses already split line, returns either a tuple of objects with
// parsed values (returns raw element (no tuple) if Ts is empty), or if
// one argument is given which is a class which has a tied
// method which returns a tuple, returns that type
template <typename T, typename... Ts>
no_void_validator_tup_t<T, Ts...> convert(const split_input& elems) {
if constexpr (tied_class_v<T, Ts...>) {
using arg_ref_tuple =
typename std::result_of_t<decltype (&T::tied)(T)>;
using arg_tuple =
typename apply_trait<std::decay, arg_ref_tuple>::type;
return to_object<T>(convert_impl(elems, (arg_tuple*){}));
} else if constexpr (sizeof...(Ts) == 0 &&
is_instance_of<T, std::tuple>::value) {
return convert_impl(elems, (T*){});
} else {
return convert_impl<T, Ts...>(elems);
}
}
bool valid() const {
return (error_mode_ == error_mode::String) ? string_error_.empty()
: bool_error_ == false;
}
const std::string& error_msg() const {
return string_error_;
}
void set_error_mode(error_mode mode) {
error_mode_ = mode;
}
// 'splits' string by given delimiter, returns vector of pairs which
// contain the beginings and the ends of each column of the string
const split_input& split(const char* const line,
const std::string& delim = "") {
input_.clear();
if (line[0] == '\0') {
return input_;
}
// parses line with given delimiter, returns tuple of objects with
// extracted values of type 'Ts'
template <typename... Ts>
no_void_validator_tup_t<Ts...> convert(const char* const line,
const std::string& delim = "") {
input_ = split(line, delim);
return convert<Ts...>(input_);
}
// parses already split line, returns 'T' object with extracted values
template <typename T, typename... Ts>
T convert_object(const split_input& elems) {
return to_object<T>(convert<Ts...>(elems));
}
// parses already split line, returns either a tuple of objects with
// parsed values (returns raw element (no tuple) if Ts is empty), or if
// one argument is given which is a class which has a tied
// method which returns a tuple, returns that type
template <typename T, typename... Ts>
no_void_validator_tup_t<T, Ts...> convert(const split_input& elems) {
if constexpr (tied_class_v<T, Ts...>) {
using arg_ref_tuple =
typename std::result_of_t<decltype (&T::tied)(T)>;
using arg_tuple =
typename apply_trait<std::decay,
arg_ref_tuple>::type;
return to_object<T>(
convert_impl(elems, (arg_tuple*){}));
} else if constexpr (sizeof...(Ts) == 0 &&
is_instance_of<T, std::tuple>::value) {
return convert_impl(elems, (T*){});
} else {
return convert_impl<T, Ts...>(elems);
}
}
bool valid() const {
return (error_mode_ == error_mode::String)
? string_error_.empty()
: bool_error_ == false;
}
const std::string& error_msg() const {
return string_error_;
}
void set_error_mode(error_mode mode) {
error_mode_ = mode;
}
// 'splits' string by given delimiter, returns vector of pairs which
// contain the beginings and the ends of each column of the string
const split_input& split(const char* const line,
const std::string& delim = "") {
input_.clear();
if (line[0] == '\0') {
return input_;
}
switch (delim.size()) {
case 0:
return split_impl(line, ',');
case 1:
return split_impl(line, delim[0]);
default:
return split_impl(line, delim, delim.size());
};
}
private:
////////////////
// error
////////////////
void clear_error() {
string_error_.clear();
bool_error_ = false;
}
std::string error_sufix(const string_range msg, size_t pos) const {
std::string error;
error.reserve(32);
error.append("at column ")
.append(std::to_string(pos + 1))
.append(": \'")
.append(msg.first, msg.second)
.append("\'");
return error;
}
void set_error_invalid_conversion(const string_range msg, size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_
.append("invalid conversion for parameter ")
.append(error_sufix(msg, pos));
} else {
bool_error_ = true;
}
}
void set_error_validate(const char* const error, const string_range msg,
size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_.append(error).append(" ").append(
error_sufix(msg, pos));
} else {
bool_error_ = true;
}
}
void set_error_number_of_colums(size_t expected_pos, size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_
.append("invalid number of columns, expected: ")
.append(std::to_string(expected_pos))
.append(", got: ")
.append(std::to_string(pos));
} else {
bool_error_ = true;
}
}
////////////////
// convert implementation
////////////////
template <typename... Ts>
no_void_validator_tup_t<Ts...> convert_impl(const split_input& elems) {
clear_error();
no_void_validator_tup_t<Ts...> ret{};
if (sizeof...(Ts) != elems.size()) {
set_error_number_of_colums(sizeof...(Ts), elems.size());
return ret;
}
return extract_tuple<Ts...>(elems);
}
// do not know how to specialize by return type :(
template <typename... Ts>
no_void_validator_tup_t<std::tuple<Ts...>> convert_impl(
const split_input& elems, const std::tuple<Ts...>*) {
return convert_impl<Ts...>(elems);
}
////////////////
// substring
////////////////
template <typename Delim>
const split_input& split_impl(const char* const line, Delim delim,
size_t delim_size = 1) {
auto range = substring(line, delim);
input_.push_back(range);
while (range.second[0] != '\0') {
range = substring(range.second + delim_size, delim);
input_.push_back(range);
}
return input_;
}
bool no_match(const char* end, char delim) const {
return *end != delim;
}
bool no_match(const char* end, const std::string& delim) const {
return strncmp(end, delim.c_str(), delim.size()) != 0;
}
template <typename Delim>
string_range substring(const char* const begin, Delim delim) const {
const char* end;
for (end = begin; *end != '\0' && no_match(end, delim); ++end)
;
return string_range{begin, end};
}
////////////////
// conversion
////////////////
template <typename T>
void extract_one(no_validator_t<T>& dst, const string_range msg,
size_t pos) {
if (!valid()) {
return;
}
if (!extract(msg.first, msg.second, dst)) {
set_error_invalid_conversion(msg, pos);
return;
}
if constexpr (has_m_ss_valid_t<T>) {
if (T validator; !validator.ss_valid(dst)) {
if constexpr (has_m_error_t<T>) {
set_error_validate(validator.error(),
msg, pos);
} else {
set_error_validate("validation error",
msg, pos);
}
return;
}
}
}
template <size_t ArgN, size_t TupN, typename... Ts>
void extract_multiple(no_void_validator_tup_t<Ts...>& tup,
const split_input& elems) {
using elem_t = std::tuple_element_t<ArgN, std::tuple<Ts...>>;
constexpr bool not_void = !std::is_void_v<elem_t>;
constexpr bool one_element =
count_not<std::is_void, Ts...>::size == 1;
if constexpr (not_void) {
if constexpr (one_element) {
extract_one<elem_t>(tup, elems[ArgN], ArgN);
} else {
auto& el = std::get<TupN>(tup);
extract_one<elem_t>(el, elems[ArgN], ArgN);
}
}
if constexpr (sizeof...(Ts) > ArgN + 1) {
constexpr size_t NewTupN = (not_void) ? TupN + 1 : TupN;
extract_multiple<ArgN + 1, NewTupN, Ts...>(tup, elems);
}
}
template <typename... Ts>
no_void_validator_tup_t<Ts...> extract_tuple(const split_input& elems) {
static_assert(!all_of<std::is_void, Ts...>::value,
"at least one parameter must be non void");
no_void_validator_tup_t<Ts...> ret;
extract_multiple<0, 0, Ts...>(ret, elems);
return ret;
switch (delim.size()) {
case 0:
return split_impl(line, ',');
case 1:
return split_impl(line, delim[0]);
default:
return split_impl(line, delim, delim.size());
};
}
////////////////
// members
////////////////
private:
////////////////
// error
////////////////
std::vector<string_range> input_;
std::string string_error_;
bool bool_error_;
enum error_mode error_mode_ { error_mode::String };
void clear_error() {
string_error_.clear();
bool_error_ = false;
}
std::string error_sufix(const string_range msg, size_t pos) const {
std::string error;
error.reserve(32);
error.append("at column ")
.append(std::to_string(pos + 1))
.append(": \'")
.append(msg.first, msg.second)
.append("\'");
return error;
}
void set_error_invalid_conversion(const string_range msg, size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_.append("invalid conversion for parameter ")
.append(error_sufix(msg, pos));
} else {
bool_error_ = true;
}
}
void set_error_validate(const char* const error, const string_range msg,
size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_.append(error).append(" ").append(
error_sufix(msg, pos));
} else {
bool_error_ = true;
}
}
void set_error_number_of_colums(size_t expected_pos, size_t pos) {
if (error_mode_ == error_mode::String) {
string_error_.clear();
string_error_.append("invalid number of columns, expected: ")
.append(std::to_string(expected_pos))
.append(", got: ")
.append(std::to_string(pos));
} else {
bool_error_ = true;
}
}
////////////////
// convert implementation
////////////////
template <typename... Ts>
no_void_validator_tup_t<Ts...> convert_impl(const split_input& elems) {
clear_error();
no_void_validator_tup_t<Ts...> ret{};
if (sizeof...(Ts) != elems.size()) {
set_error_number_of_colums(sizeof...(Ts), elems.size());
return ret;
}
return extract_tuple<Ts...>(elems);
}
// do not know how to specialize by return type :(
template <typename... Ts>
no_void_validator_tup_t<std::tuple<Ts...>> convert_impl(
const split_input& elems, const std::tuple<Ts...>*) {
return convert_impl<Ts...>(elems);
}
////////////////
// substring
////////////////
template <typename Delim>
const split_input& split_impl(const char* const line, Delim delim,
size_t delim_size = 1) {
auto range = substring(line, delim);
input_.push_back(range);
while (range.second[0] != '\0') {
range = substring(range.second + delim_size, delim);
input_.push_back(range);
}
return input_;
}
bool no_match(const char* end, char delim) const {
return *end != delim;
}
bool no_match(const char* end, const std::string& delim) const {
return strncmp(end, delim.c_str(), delim.size()) != 0;
}
template <typename Delim>
string_range substring(const char* const begin, Delim delim) const {
const char* end;
for (end = begin; *end != '\0' && no_match(end, delim); ++end)
;
return string_range{begin, end};
}
////////////////
// conversion
////////////////
template <typename T>
void extract_one(no_validator_t<T>& dst, const string_range msg,
size_t pos) {
if (!valid()) {
return;
}
if (!extract(msg.first, msg.second, dst)) {
set_error_invalid_conversion(msg, pos);
return;
}
if constexpr (has_m_ss_valid_t<T>) {
if (T validator; !validator.ss_valid(dst)) {
if constexpr (has_m_error_t<T>) {
set_error_validate(validator.error(), msg, pos);
} else {
set_error_validate("validation error", msg, pos);
}
return;
}
}
}
template <size_t ArgN, size_t TupN, typename... Ts>
void extract_multiple(no_void_validator_tup_t<Ts...>& tup,
const split_input& elems) {
using elem_t = std::tuple_element_t<ArgN, std::tuple<Ts...>>;
constexpr bool not_void = !std::is_void_v<elem_t>;
constexpr bool one_element = count_not<std::is_void, Ts...>::size == 1;
if constexpr (not_void) {
if constexpr (one_element) {
extract_one<elem_t>(tup, elems[ArgN], ArgN);
} else {
auto& el = std::get<TupN>(tup);
extract_one<elem_t>(el, elems[ArgN], ArgN);
}
}
if constexpr (sizeof...(Ts) > ArgN + 1) {
constexpr size_t NewTupN = (not_void) ? TupN + 1 : TupN;
extract_multiple<ArgN + 1, NewTupN, Ts...>(tup, elems);
}
}
template <typename... Ts>
no_void_validator_tup_t<Ts...> extract_tuple(const split_input& elems) {
static_assert(!all_of<std::is_void, Ts...>::value,
"at least one parameter must be non void");
no_void_validator_tup_t<Ts...> ret;
extract_multiple<0, 0, Ts...>(ret, elems);
return ret;
};
////////////////
// members
////////////////
std::vector<string_range> input_;
std::string string_error_;
bool bool_error_;
enum error_mode error_mode_ { error_mode::String };
};
template <>
inline void converter::extract_one<std::string>(std::string& dst,
const string_range msg,
size_t) {
if (!valid()) {
return;
}
if (!valid()) {
return;
}
extract(msg.first, msg.second, dst);
extract(msg.first, msg.second, dst);
}
} /* ss */

372
include/ss/extract.hpp
View File

@@ -20,108 +20,108 @@ namespace ss {
////////////////
template <typename T>
std::enable_if_t<std::is_floating_point_v<T>, T> pow10(int n) {
T ret = 1.0;
T r = 10.0;
if (n < 0) {
n = -n;
r = 0.1;
}
T ret = 1.0;
T r = 10.0;
if (n < 0) {
n = -n;
r = 0.1;
}
while (n) {
if (n & 1) {
ret *= r;
}
r *= r;
n >>= 1;
while (n) {
if (n & 1) {
ret *= r;
}
return ret;
r *= r;
n >>= 1;
}
return ret;
}
template <typename T>
std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
const char* begin, const char* const end) {
if (begin == end) {
return std::nullopt;
}
int sign = 1;
T int_part = 0.0;
T frac_part = 0.0;
bool has_frac = false;
bool has_exp = false;
if (begin == end) {
return std::nullopt;
}
int sign = 1;
T int_part = 0.0;
T frac_part = 0.0;
bool has_frac = false;
bool has_exp = false;
// +/- sign
if (*begin == '-') {
++begin;
sign = -1;
// +/- sign
if (*begin == '-') {
++begin;
sign = -1;
}
while (begin != end) {
if (*begin >= '0' && *begin <= '9') {
int_part = int_part * 10 + (*begin - '0');
} else if (*begin == '.') {
has_frac = true;
++begin;
break;
} else if (*begin == 'e') {
has_exp = true;
++begin;
break;
} else {
return std::nullopt;
}
++begin;
}
if (has_frac) {
T frac_exp = 0.1;
while (begin != end) {
if (*begin >= '0' && *begin <= '9') {
int_part = int_part * 10 + (*begin - '0');
} else if (*begin == '.') {
has_frac = true;
++begin;
break;
} else if (*begin == 'e') {
has_exp = true;
++begin;
break;
} else {
return std::nullopt;
}
if (*begin >= '0' && *begin <= '9') {
frac_part += frac_exp * (*begin - '0');
frac_exp *= 0.1;
} else if (*begin == 'e') {
has_exp = true;
++begin;
}
if (has_frac) {
T frac_exp = 0.1;
while (begin != end) {
if (*begin >= '0' && *begin <= '9') {
frac_part += frac_exp * (*begin - '0');
frac_exp *= 0.1;
} else if (*begin == 'e') {
has_exp = true;
++begin;
break;
} else {
return std::nullopt;
}
++begin;
}
}
// parsing exponent part
T exp_part = 1.0;
if (begin != end && has_exp) {
int exp_sign = 1;
if (*begin == '-') {
exp_sign = -1;
++begin;
} else if (*begin == '+') {
++begin;
}
int e = 0;
while (begin != end && *begin >= '0' && *begin <= '9') {
e = e * 10 + *begin - '0';
++begin;
}
exp_part = pow10<T>(exp_sign * e);
}
if (begin != end) {
break;
} else {
return std::nullopt;
}
++begin;
}
}
// parsing exponent part
T exp_part = 1.0;
if (begin != end && has_exp) {
int exp_sign = 1;
if (*begin == '-') {
exp_sign = -1;
++begin;
} else if (*begin == '+') {
++begin;
}
return sign * (int_part + frac_part) * exp_part;
int e = 0;
while (begin != end && *begin >= '0' && *begin <= '9') {
e = e * 10 + *begin - '0';
++begin;
}
exp_part = pow10<T>(exp_sign * e);
}
if (begin != end) {
return std::nullopt;
}
return sign * (int_part + frac_part) * exp_part;
}
inline std::optional<short> from_char(char c) {
if (c >= '0' && c <= '9') {
return c - '0';
}
return std::nullopt;
if (c >= '0' && c <= '9') {
return c - '0';
}
return std::nullopt;
}
#if defined(__clang__) || defined(__GNUC__) || defined(__GUNG__)
@@ -130,38 +130,38 @@ inline std::optional<short> from_char(char c) {
////////////////
template <typename T>
bool mul_overflow(T& result, T operand) {
return __builtin_mul_overflow(result, operand, &result);
return __builtin_mul_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(int& result, int operand) {
return __builtin_smul_overflow(result, operand, &result);
return __builtin_smul_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(long& result, long operand) {
return __builtin_smull_overflow(result, operand, &result);
return __builtin_smull_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(long long& result, long long operand) {
return __builtin_smulll_overflow(result, operand, &result);
return __builtin_smulll_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(unsigned int& result, unsigned int operand) {
return __builtin_umul_overflow(result, operand, &result);
return __builtin_umul_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(unsigned long& result, unsigned long operand) {
return __builtin_umull_overflow(result, operand, &result);
return __builtin_umull_overflow(result, operand, &result);
}
template <>
inline bool mul_overflow(unsigned long long& result,
unsigned long long operand) {
return __builtin_umulll_overflow(result, operand, &result);
return __builtin_umulll_overflow(result, operand, &result);
}
////////////////
@@ -170,38 +170,38 @@ inline bool mul_overflow(unsigned long long& result,
template <typename T>
inline bool add_overflow(T& result, T operand) {
return __builtin_add_overflow(result, operand, &result);
return __builtin_add_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(int& result, int operand) {
return __builtin_sadd_overflow(result, operand, &result);
return __builtin_sadd_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(long& result, long operand) {
return __builtin_saddl_overflow(result, operand, &result);
return __builtin_saddl_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(long long& result, long long operand) {
return __builtin_saddll_overflow(result, operand, &result);
return __builtin_saddll_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(unsigned int& result, unsigned int operand) {
return __builtin_uadd_overflow(result, operand, &result);
return __builtin_uadd_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(unsigned long& result, unsigned long operand) {
return __builtin_uaddl_overflow(result, operand, &result);
return __builtin_uaddl_overflow(result, operand, &result);
}
template <>
inline bool add_overflow(unsigned long long& result,
unsigned long long operand) {
return __builtin_uaddll_overflow(result, operand, &result);
return __builtin_uaddll_overflow(result, operand, &result);
}
////////////////
@@ -209,62 +209,61 @@ inline bool add_overflow(unsigned long long& result,
////////////////
template <typename T>
inline bool sub_overflow(T& result, T operand) {
return __builtin_sub_overflow(result, operand, &result);
return __builtin_sub_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(int& result, int operand) {
return __builtin_ssub_overflow(result, operand, &result);
return __builtin_ssub_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(long& result, long operand) {
return __builtin_ssubl_overflow(result, operand, &result);
return __builtin_ssubl_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(long long& result, long long operand) {
return __builtin_ssubll_overflow(result, operand, &result);
return __builtin_ssubll_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(unsigned int& result, unsigned int operand) {
return __builtin_usub_overflow(result, operand, &result);
return __builtin_usub_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(unsigned long& result, unsigned long operand) {
return __builtin_usubl_overflow(result, operand, &result);
return __builtin_usubl_overflow(result, operand, &result);
}
template <>
inline bool sub_overflow(unsigned long long& result,
unsigned long long operand) {
return __builtin_usubll_overflow(result, operand, &result);
return __builtin_usubll_overflow(result, operand, &result);
}
template <typename T, typename F>
bool shift_and_add_overflow(T& value, T digit, F add_last_digit_owerflow) {
if (mul_overflow<T>(value, 10) ||
add_last_digit_owerflow(value, digit)) {
return true;
}
return false;
if (mul_overflow<T>(value, 10) || add_last_digit_owerflow(value, digit)) {
return true;
}
return false;
}
#else
#warning "use clang or gcc!!!"
template <typename T, typename U>
bool shift_and_add_overflow(T& value, T digit, U is_negative) {
digit = (is_negative) ? -digit : digit;
T old_value = value;
value = 10 * value + digit;
digit = (is_negative) ? -digit : digit;
T old_value = value;
value = 10 * value + digit;
T expected_old_value = (value - digit) / 10;
if (old_value != expected_old_value) {
return true;
}
return false;
T expected_old_value = (value - digit) / 10;
if (old_value != expected_old_value) {
return true;
}
return false;
}
#endif
@@ -272,35 +271,34 @@ bool shift_and_add_overflow(T& value, T digit, U is_negative) {
template <typename T>
std::enable_if_t<std::is_integral_v<T>, std::optional<T>> to_num(
const char* begin, const char* end) {
if (begin == end) {
return std::nullopt;
}
bool is_negative = false;
if constexpr (std::is_signed_v<T>) {
is_negative = *begin == '-';
if (is_negative) {
++begin;
}
if (begin == end) {
return std::nullopt;
}
bool is_negative = false;
if constexpr (std::is_signed_v<T>) {
is_negative = *begin == '-';
if (is_negative) {
++begin;
}
}
#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
auto add_last_digit_owerflow =
(is_negative) ? sub_overflow<T> : add_overflow<T>;
auto add_last_digit_owerflow =
(is_negative) ? sub_overflow<T> : add_overflow<T>;
#else
auto add_last_digit_owerflow = is_negative;
auto add_last_digit_owerflow = is_negative;
#endif
T value = 0;
for (auto i = begin; i != end; ++i) {
if (auto digit = from_char(*i);
!digit ||
shift_and_add_overflow<T>(value, digit.value(),
add_last_digit_owerflow)) {
return std::nullopt;
}
T value = 0;
for (auto i = begin; i != end; ++i) {
if (auto digit = from_char(*i);
!digit || shift_and_add_overflow<T>(value, digit.value(),
add_last_digit_owerflow)) {
return std::nullopt;
}
}
return value;
return value;
}
////////////////
@@ -310,7 +308,7 @@ std::enable_if_t<std::is_integral_v<T>, std::optional<T>> to_num(
namespace error {
template <typename T>
struct unsupported_type {
constexpr static bool value = false;
constexpr static bool value = false;
};
} /* namespace */
@@ -320,51 +318,51 @@ std::enable_if_t<!std::is_integral_v<T> && !std::is_floating_point_v<T> &&
!is_instance_of<T, std::variant>::value,
bool>
extract(const char*, const char*, T&) {
static_assert(error::unsupported_type<T>::value,
"Conversion for given type is not defined, an "
"\'extract\' function needs to be defined!");
static_assert(error::unsupported_type<T>::value,
"Conversion for given type is not defined, an "
"\'extract\' function needs to be defined!");
}
template <typename T>
std::enable_if_t<std::is_integral_v<T> || std::is_floating_point_v<T>, bool>
extract(const char* begin, const char* end, T& value) {
auto optional_value = to_num<T>(begin, end);
if (!optional_value) {
return false;
}
value = optional_value.value();
return true;
auto optional_value = to_num<T>(begin, end);
if (!optional_value) {
return false;
}
value = optional_value.value();
return true;
}
template <typename T>
std::enable_if_t<is_instance_of<T, std::optional>::value, bool> extract(
const char* begin, const char* end, T& value) {
typename T::value_type raw_value;
if (extract(begin, end, raw_value)) {
value = raw_value;
} else {
value = std::nullopt;
}
return true;
typename T::value_type raw_value;
if (extract(begin, end, raw_value)) {
value = raw_value;
} else {
value = std::nullopt;
}
return true;
}
template <typename T, size_t I>
bool extract_variant(const char* begin, const char* end, T& value) {
using IthType = std::variant_alternative_t<I, std::decay_t<T>>;
IthType ithValue;
if (extract<IthType>(begin, end, ithValue)) {
value = ithValue;
return true;
} else if constexpr (I + 1 < std::variant_size_v<T>) {
return extract_variant<T, I + 1>(begin, end, value);
}
return false;
using IthType = std::variant_alternative_t<I, std::decay_t<T>>;
IthType ithValue;
if (extract<IthType>(begin, end, ithValue)) {
value = ithValue;
return true;
} else if constexpr (I + 1 < std::variant_size_v<T>) {
return extract_variant<T, I + 1>(begin, end, value);
}
return false;
}
template <typename T>
std::enable_if_t<is_instance_of<T, std::variant>::value, bool> extract(
const char* begin, const char* end, T& value) {
return extract_variant<T, 0>(begin, end, value);
return extract_variant<T, 0>(begin, end, value);
}
////////////////
@@ -373,38 +371,38 @@ std::enable_if_t<is_instance_of<T, std::variant>::value, bool> extract(
template <>
inline bool extract(const char* begin, const char* end, bool& value) {
if (end == begin + 1) {
if (*begin == '1') {
value = true;
} else if (*begin == '0') {
value = false;
} else {
return false;
}
if (end == begin + 1) {
if (*begin == '1') {
value = true;
} else if (*begin == '0') {
value = false;
} else {
size_t size = end - begin;
if (size == 4 && strncmp(begin, "true", size) == 0) {
value = true;
} else if (size == 5 && strncmp(begin, "false", size) == 0) {
value = false;
} else {
return false;
}
return false;
}
} else {
size_t size = end - begin;
if (size == 4 && strncmp(begin, "true", size) == 0) {
value = true;
} else if (size == 5 && strncmp(begin, "false", size) == 0) {
value = false;
} else {
return false;
}
}
return true;
return true;
}
template <>
inline bool extract(const char* begin, const char* end, char& value) {
value = *begin;
return (end == begin + 1);
value = *begin;
return (end == begin + 1);
}
template <>
inline bool extract(const char* begin, const char* end, std::string& value) {
value = std::string(begin, end);
return true;
value = std::string(begin, end);
return true;
}
} /* ss */

34
include/ss/function_traits.hpp
View File

@@ -12,13 +12,13 @@ namespace ss {
template <size_t N, typename T, typename... Ts>
struct decayed_arg_n {
static_assert(N - 1 != sizeof...(Ts), "index out of range");
using type = typename decayed_arg_n<N - 1, Ts...>::type;
static_assert(N - 1 != sizeof...(Ts), "index out of range");
using type = typename decayed_arg_n<N - 1, Ts...>::type;
};
template <typename T, typename... Ts>
struct decayed_arg_n<0, T, Ts...> {
using type = std::decay_t<T>;
using type = std::decay_t<T>;
};
template <typename T>
@@ -26,12 +26,12 @@ struct function_traits;
template <typename R, typename C, typename Arg>
struct function_traits<std::function<R(C&, const Arg&) const>> {
using arg_type = Arg;
using arg_type = Arg;
};
template <typename R, typename... Ts>
struct function_traits<R(Ts...)> {
using arg0 = typename decayed_arg_n<0, Ts...>::type;
using arg0 = typename decayed_arg_n<0, Ts...>::type;
};
template <typename R, typename... Ts>
@@ -54,7 +54,7 @@ struct member_wrapper;
template <typename R, typename T>
struct member_wrapper<R T::*> {
using arg_type = typename function_traits<R>::arg0;
using arg_type = typename function_traits<R>::arg0;
};
////////////////
@@ -62,19 +62,19 @@ struct member_wrapper<R T::*> {
////////////////
#define INIT_HAS_METHOD(method) \
template <typename T> \
class has_m_##method { \
template <typename C> \
static std::true_type test(decltype(&C::method)); \
template <typename T> \
class has_m_##method { \
template <typename C> \
static std::true_type test(decltype(&C::method)); \
\
template <typename C> \
static std::false_type test(...); \
template <typename C> \
static std::false_type test(...); \
\
public: \
constexpr static bool value = decltype(test<T>(0))::value; \
}; \
public: \
constexpr static bool value = decltype(test<T>(0))::value; \
}; \
\
template <typename T> \
constexpr bool has_m_##method##_t = has_m_##method<T>::value;
template <typename T> \
constexpr bool has_m_##method##_t = has_m_##method<T>::value;
} /* trait */

618
include/ss/parser.hpp
View File

@@ -16,344 +16,328 @@ template <typename...>
class composite;
class parser {
public:
parser(const std::string& file_name, const std::string& delimiter)
: file_name_{file_name}, delim_{delimiter},
file_{fopen(file_name_.c_str(), "rb")} {
if (file_) {
read_line();
} else {
set_error_file_not_open();
eof_ = true;
}
}
~parser() {
fclose(file_);
}
bool valid() const {
return (error_mode_ == error_mode::String) ? string_error_.empty()
: bool_error_ == false;
}
void set_error_mode(error_mode mode) {
error_mode_ = mode;
converter_.set_error_mode(mode);
}
const std::string& error_msg() const {
return string_error_;
}
bool eof() const {
return eof_;
}
bool ignore_next() {
return buff_.read(file_);
}
template <typename T, typename... Ts>
T get_object() {
return to_object<T>(get_next<Ts...>());
}
template <typename T, typename... Ts>
no_void_validator_tup_t<T, Ts...> get_next() {
buff_.update();
clear_error();
if (eof_) {
set_error_eof_reached();
return {};
}
split_input_ = converter_.split(buff_.get(), delim_);
auto value = converter_.convert<T, Ts...>(split_input_);
if (!converter_.valid()) {
set_error_invalid_conversion();
}
read_line();
return value;
}
////////////////
// composite conversion
////////////////
template <typename... Ts>
class composite {
public:
parser(const std::string& file_name, const std::string& delimiter)
: file_name_{file_name}, delim_{delimiter},
file_{fopen(file_name_.c_str(), "rb")} {
if (file_) {
read_line();
} else {
set_error_file_not_open();
eof_ = true;
}
composite(std::tuple<Ts...>&& values, parser& parser)
: values_{std::move(values)}, parser_{parser} {
}
~parser() {
fclose(file_);
}
bool valid() const {
return (error_mode_ == error_mode::String)
? string_error_.empty()
: bool_error_ == false;
}
void set_error_mode(error_mode mode) {
error_mode_ = mode;
converter_.set_error_mode(mode);
}
const std::string& error_msg() const {
return string_error_;
}
bool eof() const {
return eof_;
}
bool ignore_next() {
return buff_.read(file_);
}
template <typename T, typename... Ts>
T get_object() {
return to_object<T>(get_next<Ts...>());
}
template <typename T, typename... Ts>
no_void_validator_tup_t<T, Ts...> get_next() {
buff_.update();
clear_error();
if (eof_) {
set_error_eof_reached();
return {};
}
split_input_ = converter_.split(buff_.get(), delim_);
auto value = converter_.convert<T, Ts...>(split_input_);
if (!converter_.valid()) {
set_error_invalid_conversion();
}
read_line();
return value;
}
////////////////
// composite conversion
////////////////
template <typename... Ts>
class composite {
public:
composite(std::tuple<Ts...>&& values, parser& parser)
: values_{std::move(values)}, parser_{parser} {
}
// tries to convert the same line with a different output type
// only if the previous conversion was not successful,
// returns composite containing itself and the new output
// as optional, additionally, if a parameter is passed, and
// that parameter can be invoked using the converted value,
// than it will be invoked in the case of a valid conversion
template <typename... Us, typename Fun = None>
composite<Ts..., std::optional<no_void_validator_tup_t<Us...>>>
or_else(Fun&& fun = None{}) {
using Value = no_void_validator_tup_t<Us...>;
std::optional<Value> value;
try_convert_and_invoke<Value, Us...>(value, fun);
return composite_with(std::move(value));
}
// same as or_else, but saves the result into a 'U' object
// instead of a tuple
template <typename U, typename... Us, typename Fun = None>
composite<Ts..., std::optional<U>> or_else_object(
Fun&& fun = None{}) {
std::optional<U> value;
try_convert_and_invoke<U, Us...>(value, fun);
return composite_with(std::move(value));
}
std::tuple<Ts...> values() {
return values_;
}
template <typename Fun>
auto on_error(Fun&& fun) {
if (!parser_.valid()) {
if constexpr (std::is_invocable_v<Fun>) {
fun();
} else {
std::invoke(std::forward<Fun>(fun),
parser_.error_msg());
}
}
return *this;
}
private:
template <typename T>
composite<Ts..., T> composite_with(T&& new_value) {
auto merged_values =
std::tuple_cat(std::move(values_),
std::tuple{
std::forward<T>(new_value)});
return {std::move(merged_values), parser_};
}
template <typename U, typename... Us, typename Fun = None>
void try_convert_and_invoke(std::optional<U>& value,
Fun&& fun) {
if (!parser_.valid()) {
std::optional<U> new_value;
auto tuple_output = try_same<Us...>();
if constexpr (!std::is_same_v<
U, decltype(tuple_output)>) {
new_value = to_object<U>(
std::move(tuple_output));
} else {
new_value = std::move(tuple_output);
}
if (parser_.valid()) {
value = std::move(new_value);
parser_.try_invoke(*value,
std::forward<Fun>(
fun));
}
}
}
template <typename U, typename... Us>
no_void_validator_tup_t<U, Us...> try_same() {
parser_.clear_error();
auto value = parser_.converter_.convert<U, Us...>(
parser_.split_input_);
if (!parser_.converter_.valid()) {
parser_.set_error_invalid_conversion();
}
return value;
}
std::tuple<Ts...> values_;
parser& parser_;
};
// tries to convert a line and returns a composite which is
// able to try additional conversions in case of failure
template <typename... Ts, typename Fun = None>
composite<std::optional<no_void_validator_tup_t<Ts...>>> try_next(
// tries to convert the same line with a different output type
// only if the previous conversion was not successful,
// returns composite containing itself and the new output
// as optional, additionally, if a parameter is passed, and
// that parameter can be invoked using the converted value,
// than it will be invoked in the case of a valid conversion
template <typename... Us, typename Fun = None>
composite<Ts..., std::optional<no_void_validator_tup_t<Us...>>> or_else(
Fun&& fun = None{}) {
std::optional<no_void_validator_tup_t<Ts...>> value;
auto new_value = get_next<Ts...>();
if (valid()) {
value = std::move(new_value);
try_invoke(*value, std::forward<Fun>(fun));
using Value = no_void_validator_tup_t<Us...>;
std::optional<Value> value;
try_convert_and_invoke<Value, Us...>(value, fun);
return composite_with(std::move(value));
}
// same as or_else, but saves the result into a 'U' object
// instead of a tuple
template <typename U, typename... Us, typename Fun = None>
composite<Ts..., std::optional<U>> or_else_object(Fun&& fun = None{}) {
std::optional<U> value;
try_convert_and_invoke<U, Us...>(value, fun);
return composite_with(std::move(value));
}
std::tuple<Ts...> values() {
return values_;
}
template <typename Fun>
auto on_error(Fun&& fun) {
if (!parser_.valid()) {
if constexpr (std::is_invocable_v<Fun>) {
fun();
} else {
std::invoke(std::forward<Fun>(fun), parser_.error_msg());
}
return {std::move(value), *this};
};
}
return *this;
}
private:
template <typename...>
friend class composite;
// tries to invoke the given function (see below), if the function
// returns a value which can be used as a conditional, and it returns
// false, the function sets an error, and allows the invoke of the
// next possible conversion as if the validation of the current one
// failed
template <typename Arg, typename Fun = None>
void try_invoke(Arg&& arg, Fun&& fun) {
constexpr bool is_none =
std::is_same_v<std::decay_t<Fun>, None>;
if constexpr (!is_none) {
using Ret = decltype(
try_invoke_impl(arg, std::forward<Fun>(fun)));
constexpr bool returns_void = std::is_same_v<Ret, void>;
if constexpr (!returns_void) {
if (!try_invoke_impl(arg,
std::forward<Fun>(fun))) {
set_error_failed_check();
}
} else {
try_invoke_impl(arg, std::forward<Fun>(fun));
}
}
template <typename T>
composite<Ts..., T> composite_with(T&& new_value) {
auto merged_values =
std::tuple_cat(std::move(values_),
std::tuple{std::forward<T>(new_value)});
return {std::move(merged_values), parser_};
}
// tries to invoke the function if not None
// it first tries to invoke the function without arguments,
// than with one argument if the function accepts the whole tuple
// as an argument, and finally tries to invoke it with the tuple
// laid out as a parameter pack
template <typename Arg, typename Fun = None>
auto try_invoke_impl(Arg&& arg, Fun&& fun) {
constexpr bool is_none =
std::is_same_v<std::decay_t<Fun>, None>;
if constexpr (!is_none) {
if constexpr (std::is_invocable_v<Fun>) {
return fun();
} else if constexpr (std::is_invocable_v<Fun, Arg>) {
return std::invoke(std::forward<Fun>(fun),
std::forward<Arg>(arg));
} else {
return std::apply(std::forward<Fun>(fun),
std::forward<Arg>(arg));
}
}
}
////////////////
// line reading
////////////////
class buffer {
char* buffer_{nullptr};
char* new_buffer_{nullptr};
size_t size_{0};
public:
~buffer() {
free(buffer_);
free(new_buffer_);
}
bool read(FILE* file) {
ssize_t size = getline(&new_buffer_, &size_, file);
size_t string_end = size - 1;
if (size == -1) {
return false;
}
if (size >= 2 && new_buffer_[size - 2] == '\r') {
string_end--;
}
new_buffer_[string_end] = '\0';
return true;
}
const char* get() const {
return buffer_;
}
void update() {
std::swap(buffer_, new_buffer_);
}
};
void read_line() {
eof_ = !buff_.read(file_);
++line_number_;
}
////////////////
// error
////////////////
void clear_error() {
string_error_.clear();
bool_error_ = false;
}
void set_error_failed_check() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_)
.append(" failed check.");
template <typename U, typename... Us, typename Fun = None>
void try_convert_and_invoke(std::optional<U>& value, Fun&& fun) {
if (!parser_.valid()) {
std::optional<U> new_value;
auto tuple_output = try_same<Us...>();
if constexpr (!std::is_same_v<U, decltype(tuple_output)>) {
new_value = to_object<U>(std::move(tuple_output));
} else {
bool_error_ = true;
new_value = std::move(tuple_output);
}
if (parser_.valid()) {
value = std::move(new_value);
parser_.try_invoke(*value, std::forward<Fun>(fun));
}
}
}
void set_error_file_not_open() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_)
.append(" could not be not open.");
} else {
bool_error_ = true;
}
template <typename U, typename... Us>
no_void_validator_tup_t<U, Us...> try_same() {
parser_.clear_error();
auto value =
parser_.converter_.convert<U, Us...>(parser_.split_input_);
if (!parser_.converter_.valid()) {
parser_.set_error_invalid_conversion();
}
return value;
}
void set_error_eof_reached() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_)
.append(" reached end of file.");
} else {
bool_error_ = true;
std::tuple<Ts...> values_;
parser& parser_;
};
// tries to convert a line and returns a composite which is
// able to try additional conversions in case of failure
template <typename... Ts, typename Fun = None>
composite<std::optional<no_void_validator_tup_t<Ts...>>> try_next(
Fun&& fun = None{}) {
std::optional<no_void_validator_tup_t<Ts...>> value;
auto new_value = get_next<Ts...>();
if (valid()) {
value = std::move(new_value);
try_invoke(*value, std::forward<Fun>(fun));
}
return {std::move(value), *this};
};
private:
template <typename...>
friend class composite;
// tries to invoke the given function (see below), if the function
// returns a value which can be used as a conditional, and it returns
// false, the function sets an error, and allows the invoke of the
// next possible conversion as if the validation of the current one
// failed
template <typename Arg, typename Fun = None>
void try_invoke(Arg&& arg, Fun&& fun) {
constexpr bool is_none = std::is_same_v<std::decay_t<Fun>, None>;
if constexpr (!is_none) {
using Ret = decltype(try_invoke_impl(arg, std::forward<Fun>(fun)));
constexpr bool returns_void = std::is_same_v<Ret, void>;
if constexpr (!returns_void) {
if (!try_invoke_impl(arg, std::forward<Fun>(fun))) {
set_error_failed_check();
}
} else {
try_invoke_impl(arg, std::forward<Fun>(fun));
}
}
}
// tries to invoke the function if not None
// it first tries to invoke the function without arguments,
// than with one argument if the function accepts the whole tuple
// as an argument, and finally tries to invoke it with the tuple
// laid out as a parameter pack
template <typename Arg, typename Fun = None>
auto try_invoke_impl(Arg&& arg, Fun&& fun) {
constexpr bool is_none = std::is_same_v<std::decay_t<Fun>, None>;
if constexpr (!is_none) {
if constexpr (std::is_invocable_v<Fun>) {
return fun();
} else if constexpr (std::is_invocable_v<Fun, Arg>) {
return std::invoke(std::forward<Fun>(fun),
std::forward<Arg>(arg));
} else {
return std::apply(std::forward<Fun>(fun),
std::forward<Arg>(arg));
}
}
}
////////////////
// line reading
////////////////
class buffer {
char* buffer_{nullptr};
char* new_buffer_{nullptr};
size_t size_{0};
public:
~buffer() {
free(buffer_);
free(new_buffer_);
}
void set_error_invalid_conversion() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_)
.append(" ")
.append(std::to_string(line_number_))
.append(": ")
.append(converter_.error_msg())
.append(": \"")
.append(buff_.get())
.append("\"");
} else {
bool_error_ = true;
}
bool read(FILE* file) {
ssize_t size = getline(&new_buffer_, &size_, file);
size_t string_end = size - 1;
if (size == -1) {
return false;
}
if (size >= 2 && new_buffer_[size - 2] == '\r') {
string_end--;
}
new_buffer_[string_end] = '\0';
return true;
}
////////////////
// members
////////////////
const char* get() const {
return buffer_;
}
const std::string file_name_;
const std::string delim_;
std::string string_error_;
bool bool_error_;
error_mode error_mode_{error_mode::String};
converter converter_;
converter::split_input split_input_;
FILE* file_{nullptr};
buffer buff_;
size_t line_number_{0};
bool eof_{false};
void update() {
std::swap(buffer_, new_buffer_);
}
};
void read_line() {
eof_ = !buff_.read(file_);
++line_number_;
}
////////////////
// error
////////////////
void clear_error() {
string_error_.clear();
bool_error_ = false;
}
void set_error_failed_check() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_).append(" failed check.");
} else {
bool_error_ = true;
}
}
void set_error_file_not_open() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_).append(" could not be not open.");
} else {
bool_error_ = true;
}
}
void set_error_eof_reached() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_).append(" reached end of file.");
} else {
bool_error_ = true;
}
}
void set_error_invalid_conversion() {
if (error_mode_ == error_mode::String) {
string_error_.append(file_name_)
.append(" ")
.append(std::to_string(line_number_))
.append(": ")
.append(converter_.error_msg())
.append(": \"")
.append(buff_.get())
.append("\"");
} else {
bool_error_ = true;
}
}
////////////////
// members
////////////////
const std::string file_name_;
const std::string delim_;
std::string string_error_;
bool bool_error_;
error_mode error_mode_{error_mode::String};
converter converter_;
converter::split_input split_input_;
FILE* file_{nullptr};
buffer buff_;
size_t line_number_{0};
bool eof_{false};
};
} /* ss */

92
include/ss/restrictions.hpp
View File

@@ -8,23 +8,23 @@ namespace ss {
template <typename T, auto... Values>
struct ax {
private:
template <auto X, auto... Xs>
bool ss_valid_impl(const T& x) const {
if constexpr (sizeof...(Xs) != 0) {
return x != X && ss_valid_impl<Xs...>(x);
}
return x != X;
private:
template <auto X, auto... Xs>
bool ss_valid_impl(const T& x) const {
if constexpr (sizeof...(Xs) != 0) {
return x != X && ss_valid_impl<Xs...>(x);
}
return x != X;
}
public:
bool ss_valid(const T& value) const {
return ss_valid_impl<Values...>(value);
}
public:
bool ss_valid(const T& value) const {
return ss_valid_impl<Values...>(value);
}
const char* error() const {
return "value excluded";
}
const char* error() const {
return "value excluded";
}
};
////////////////
@@ -33,23 +33,23 @@ struct ax {
template <typename T, auto... Values>
struct nx {
private:
template <auto X, auto... Xs>
bool ss_valid_impl(const T& x) const {
if constexpr (sizeof...(Xs) != 0) {
return x == X || ss_valid_impl<Xs...>(x);
}
return x == X;
private:
template <auto X, auto... Xs>
bool ss_valid_impl(const T& x) const {
if constexpr (sizeof...(Xs) != 0) {
return x == X || ss_valid_impl<Xs...>(x);
}
return x == X;
}
public:
bool ss_valid(const T& value) const {
return ss_valid_impl<Values...>(value);
}
public:
bool ss_valid(const T& value) const {
return ss_valid_impl<Values...>(value);
}
const char* error() const {
return "value excluded";
}
const char* error() const {
return "value excluded";
}
};
////////////////
@@ -58,13 +58,13 @@ struct nx {
template <typename T, auto Min, auto Max>
struct ir {
bool ss_valid(const T& value) const {
return value >= Min && value <= Max;
}
bool ss_valid(const T& value) const {
return value >= Min && value <= Max;
}
const char* error() const {
return "out of range";
}
const char* error() const {
return "out of range";
}
};
////////////////
@@ -73,13 +73,13 @@ struct ir {
template <typename T, auto Min, auto Max>
struct oor {
bool ss_valid(const T& value) const {
return value < Min || value > Max;
}
bool ss_valid(const T& value) const {
return value < Min || value > Max;
}
const char* error() const {
return "in restricted range";
}
const char* error() const {
return "in restricted range";
}
};
////////////////
@@ -88,13 +88,13 @@ struct oor {
template <typename T>
struct ne {
bool ss_valid(const T& value) const {
return !value.empty();
}
bool ss_valid(const T& value) const {
return !value.empty();
}
const char* error() const {
return "empty field";
}
const char* error() const {
return "empty field";
}
};
} /* ss */

118
include/ss/type_traits.hpp
View File

@@ -14,12 +14,12 @@ struct tup_cat;
template <typename... Ts, typename... Us>
struct tup_cat<std::tuple<Ts...>, std::tuple<Us...>> {
using type = std::tuple<Ts..., Us...>;
using type = std::tuple<Ts..., Us...>;
};
template <typename T, typename... Ts>
struct tup_cat<T, std::tuple<Ts...>> {
using type = std::tuple<T, Ts...>;
using type = std::tuple<T, Ts...>;
};
template <typename... Ts>
@@ -34,14 +34,14 @@ struct left_of_impl;
template <size_t N, typename T, typename... Ts>
struct left_of_impl {
static_assert(N < 128, "recursion limit reached");
static_assert(N != 0, "cannot take the whole tuple");
using type = tup_cat_t<T, typename left_of_impl<N - 1, Ts...>::type>;
static_assert(N < 128, "recursion limit reached");
static_assert(N != 0, "cannot take the whole tuple");
using type = tup_cat_t<T, typename left_of_impl<N - 1, Ts...>::type>;
};
template <typename T, typename... Ts>
struct left_of_impl<0, T, Ts...> {
using type = std::tuple<T>;
using type = std::tuple<T>;
};
template <size_t N, typename... Ts>
@@ -62,12 +62,12 @@ struct right_of_impl;
template <size_t N, typename T, typename... Ts>
struct right_of_impl {
using type = typename right_of_impl<N - 1, Ts...>::type;
using type = typename right_of_impl<N - 1, Ts...>::type;
};
template <typename T, typename... Ts>
struct right_of_impl<0, T, Ts...> {
using type = std::tuple<T, Ts...>;
using type = std::tuple<T, Ts...>;
};
template <size_t N, typename... Ts>
@@ -88,19 +88,19 @@ struct apply_trait;
template <template <typename...> class Trait, typename T, typename... Ts>
struct apply_trait<Trait, std::tuple<T, Ts...>> {
using type =
tup_cat_t<typename Trait<T>::type,
typename apply_trait<Trait, std::tuple<Ts...>>::type>;
using type =
tup_cat_t<typename Trait<T>::type,
typename apply_trait<Trait, std::tuple<Ts...>>::type>;
};
template <template <typename...> class Trait, typename T>
struct apply_trait {
using type = std::tuple<typename Trait<T>::type>;
using type = std::tuple<typename Trait<T>::type>;
};
template <template <typename...> class Trait, typename T>
struct apply_trait<Trait, std::tuple<T>> {
using type = std::tuple<typename Trait<T>::type>;
using type = std::tuple<typename Trait<T>::type>;
};
////////////////
@@ -113,12 +113,12 @@ struct optional_trait;
template <typename U>
struct optional_trait<std::true_type, U> {
using type = U;
using type = U;
};
template <typename U>
struct optional_trait<std::false_type, U> {
using type = std::false_type;
using type = std::false_type;
};
template <template <typename...> class Trait, typename T>
@@ -126,21 +126,21 @@ struct apply_optional_trait;
template <template <typename...> class Trait, typename T, typename... Ts>
struct apply_optional_trait<Trait, std::tuple<T, Ts...>> {
using type = tup_cat_t<
typename optional_trait<typename Trait<T>::type, T>::type,
typename apply_optional_trait<Trait, std::tuple<Ts...>>::type>;
using type = tup_cat_t<
typename optional_trait<typename Trait<T>::type, T>::type,
typename apply_optional_trait<Trait, std::tuple<Ts...>>::type>;
};
template <template <typename...> class Trait, typename T>
struct apply_optional_trait {
using type = std::tuple<
typename optional_trait<typename Trait<T>::type, T>::type>;
using type =
std::tuple<typename optional_trait<typename Trait<T>::type, T>::type>;
};
template <template <typename...> class Trait, typename T>
struct apply_optional_trait<Trait, std::tuple<T>> {
using type = std::tuple<
typename optional_trait<typename Trait<T>::type, T>::type>;
using type =
std::tuple<typename optional_trait<typename Trait<T>::type, T>::type>;
};
////////////////
@@ -149,37 +149,37 @@ struct apply_optional_trait<Trait, std::tuple<T>> {
template <typename T, typename... Ts>
struct remove_false {
using type = tup_cat_t<T, typename remove_false<Ts...>::type>;
using type = tup_cat_t<T, typename remove_false<Ts...>::type>;
};
template <typename... Ts>
struct remove_false<std::false_type, Ts...> {
using type = typename remove_false<Ts...>::type;
using type = typename remove_false<Ts...>::type;
};
template <typename T, typename... Ts>
struct remove_false<std::tuple<T, Ts...>> {
using type = tup_cat_t<T, typename remove_false<Ts...>::type>;
using type = tup_cat_t<T, typename remove_false<Ts...>::type>;
};
template <typename... Ts>
struct remove_false<std::tuple<std::false_type, Ts...>> {
using type = typename remove_false<Ts...>::type;
using type = typename remove_false<Ts...>::type;
};
template <typename T>
struct remove_false<T> {
using type = std::tuple<T>;
using type = std::tuple<T>;
};
template <typename T>
struct remove_false<std::tuple<T>> {
using type = std::tuple<T>;
using type = std::tuple<T>;
};
template <>
struct remove_false<std::false_type> {
using type = std::tuple<>;
using type = std::tuple<>;
};
////////////////
@@ -188,8 +188,8 @@ struct remove_false<std::false_type> {
template <template <typename...> class Trait>
struct negate_impl {
template <typename... Ts>
using type = std::integral_constant<bool, !Trait<Ts...>::value>;
template <typename... Ts>
using type = std::integral_constant<bool, !Trait<Ts...>::value>;
};
////////////////
@@ -198,14 +198,14 @@ struct negate_impl {
template <template <typename...> class Trait, typename... Ts>
struct filter_if {
using type = typename filter_if<Trait, std::tuple<Ts...>>::type;
using type = typename filter_if<Trait, std::tuple<Ts...>>::type;
};
template <template <typename...> class Trait, typename... Ts>
struct filter_if<Trait, std::tuple<Ts...>> {
using type = typename remove_false<typename apply_optional_trait<
Trait, std::tuple<Ts...>>::type>::type;
using type = typename remove_false<
typename apply_optional_trait<Trait, std::tuple<Ts...>>::type>::type;
};
template <template <typename...> class Trait, typename... Ts>
@@ -213,14 +213,14 @@ using filter_if_t = typename filter_if<Trait, Ts...>::type;
template <template <typename...> class Trait, typename... Ts>
struct filter_not {
using type = typename filter_not<Trait, std::tuple<Ts...>>::type;
using type = typename filter_not<Trait, std::tuple<Ts...>>::type;
};
template <template <typename...> class Trait, typename... Ts>
struct filter_not<Trait, std::tuple<Ts...>> {
using type = typename remove_false<typename apply_optional_trait<
negate_impl<Trait>::template type, std::tuple<Ts...>>::type>::type;
using type = typename remove_false<typename apply_optional_trait<
negate_impl<Trait>::template type, std::tuple<Ts...>>::type>::type;
};
template <template <typename...> class Trait, typename... Ts>
@@ -235,13 +235,13 @@ struct count;
template <template <typename...> class Trait, typename T, typename... Ts>
struct count {
static constexpr size_t size =
std::tuple_size<filter_if_t<Trait, T, Ts...>>::value;
static constexpr size_t size =
std::tuple_size<filter_if_t<Trait, T, Ts...>>::value;
};
template <template <typename...> class Trait, typename T>
struct count<Trait, T> {
static constexpr size_t size = Trait<T>::value;
static constexpr size_t size = Trait<T>::value;
};
////////////////
@@ -253,13 +253,13 @@ struct count;
template <template <typename...> class Trait, typename T, typename... Ts>
struct count_not {
static constexpr size_t size =
std::tuple_size<filter_not_t<Trait, T, Ts...>>::value;
static constexpr size_t size =
std::tuple_size<filter_not_t<Trait, T, Ts...>>::value;
};
template <template <typename...> class Trait, typename T>
struct count_not<Trait, T> {
static constexpr size_t size = !Trait<T>::value;
static constexpr size_t size = !Trait<T>::value;
};
////////////////
@@ -268,14 +268,12 @@ struct count_not<Trait, T> {
template <template <typename...> class Trait, typename... Ts>
struct all_of {
static constexpr bool value =
count<Trait, Ts...>::size == sizeof...(Ts);
static constexpr bool value = count<Trait, Ts...>::size == sizeof...(Ts);
};
template <template <typename...> class Trait, typename... Ts>
struct all_of<Trait, std::tuple<Ts...>> {
static constexpr bool value =
count<Trait, Ts...>::size == sizeof...(Ts);
static constexpr bool value = count<Trait, Ts...>::size == sizeof...(Ts);
};
////////////////
@@ -284,14 +282,14 @@ struct all_of<Trait, std::tuple<Ts...>> {
template <template <typename...> class Trait, typename... Ts>
struct any_of {
static_assert(sizeof...(Ts) > 0);
static constexpr bool value = count<Trait, Ts...>::size > 0;
static_assert(sizeof...(Ts) > 0);
static constexpr bool value = count<Trait, Ts...>::size > 0;
};
template <template <typename...> class Trait, typename... Ts>
struct any_of<Trait, std::tuple<Ts...>> {
static_assert(sizeof...(Ts) > 0);
static constexpr bool value = count<Trait, Ts...>::size > 0;
static_assert(sizeof...(Ts) > 0);
static constexpr bool value = count<Trait, Ts...>::size > 0;
};
////////////////
@@ -300,12 +298,12 @@ struct any_of<Trait, std::tuple<Ts...>> {
template <template <typename...> class Trait, typename... Ts>
struct none_of {
static constexpr bool value = count<Trait, Ts...>::size == 0;
static constexpr bool value = count<Trait, Ts...>::size == 0;
};
template <template <typename...> class Trait, typename... Ts>
struct none_of<Trait, std::tuple<Ts...>> {
static constexpr bool value = count<Trait, Ts...>::size == 0;
static constexpr bool value = count<Trait, Ts...>::size == 0;
};
////////////////
@@ -314,12 +312,12 @@ struct none_of<Trait, std::tuple<Ts...>> {
template <typename T, template <typename...> class Template>
struct is_instance_of {
constexpr static bool value = false;
constexpr static bool value = false;
};
template <typename ...Ts, template <typename...> class Template>
template <typename... Ts, template <typename...> class Template>
struct is_instance_of<Template<Ts...>, Template> {
constexpr static bool value = true;
constexpr static bool value = true;
};
////////////////
@@ -328,14 +326,14 @@ struct is_instance_of<Template<Ts...>, Template> {
template <class S, std::size_t... Is, class Tup>
S to_object(std::index_sequence<Is...>, Tup&& tup) {
return {std::get<Is>(std::forward<Tup>(tup))...};
return {std::get<Is>(std::forward<Tup>(tup))...};
}
template <class S, class Tup>
S to_object(Tup&& tup) {
using T = std::remove_reference_t<Tup>;
return to_object<S>(std::make_index_sequence<std::tuple_size<T>{}>{},
std::forward<Tup>(tup));
using T = std::remove_reference_t<Tup>;
return to_object<S>(std::make_index_sequence<std::tuple_size<T>{}>{},
std::forward<Tup>(tup));
}
} /* trait */