from_string.hpp File Reference

Contains functions to construct types from string. More...

#include "../concepts.hpp"
#include <string>

Go to the source code of this file.

Concepts
concept	gz::util::GetTypeFromStringImplemented
	toString is implemented for these types
concept	gz::ConstructibleFromString
	Any type where fromString(string) exists and returns T.

Functions
template<gz::util::False T>
T	fromString (const std::string &s)
	Declaration of fromString in global namespace, so that concepts can use it. More...
Construct a type from a string
Note The fromString() functions (except for the bool one) simply return std::stoXX. These can throw std::invalid_argument and std::out_of_range. See https://en.cppreference.com/w/cpp/string/basic_string/stol
template<util::GetTypeFromStringImplemented T>
T	gz::fromString (const std::string &s)
	Declaration of fromString, but only for the types for which it is implemented. More...
template<>
int	gz::fromString< int > (const std::string &s)
template<>
long	gz::fromString< long > (const std::string &s)
template<>
long long	gz::fromString< long long > (const std::string &s)
template<>
unsigned int	gz::fromString< unsigned int > (const std::string &s)
template<>
unsigned long	gz::fromString< unsigned long > (const std::string &s)
template<>
unsigned long long	gz::fromString< unsigned long long > (const std::string &s)
template<>
float	gz::fromString< float > (const std::string &s)
template<>
double	gz::fromString< double > (const std::string &s)
template<>
long double	gz::fromString< long double > (const std::string &s)
template<>
bool	gz::fromString< bool > (const std::string &s)
	Convert a string to bool. More...

Detailed Description

Contains functions to construct types from string.

Todo:

Make these functions usable with std::string_view

Function Documentation

fromString() [1/2]

template<gz::util::False T>

T fromString

(

const std::string &

s

)

Declaration of fromString in global namespace, so that concepts can use it.

This declaration only exists so that fromString can be used in concepts.

fromString() [2/2]

template<util::GetTypeFromStringImplemented T>

T gz::fromString ( const std::string &  s )

inline

Declaration of fromString, but only for the types for which it is implemented.

Construct T from a string using a fromString that is declared in global namespace.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

fromString< bool >()

template<>

bool gz::fromString< bool >

(

const std::string &

s

)

Convert a string to bool.

• returns true if s = "true" or "True" or "1"
• returns false if s = "false" or "False" or "0"
• throws InvalidArgument otherwise

fromString< double >()

template<>

double gz::fromString< double > ( const std::string &  s )

inline

Returns

std::stod(s)

fromString< float >()

template<>

float gz::fromString< float > ( const std::string &  s )

inline

Returns

std::stof(s)

fromString< int >()

template<>

int gz::fromString< int > ( const std::string &  s )

inline

Returns

std::stoi(s)

fromString< long >()

template<>

long gz::fromString< long > ( const std::string &  s )

inline

Returns

std::stol(s)

fromString< long double >()

template<>

long double gz::fromString< long double > ( const std::string &  s )

inline

Returns

std::stold(s)

fromString< long long >()

template<>

long long gz::fromString< long long > ( const std::string &  s )

inline

Returns

std::stoll(s)

fromString< unsigned int >()

template<>

unsigned int gz::fromString< unsigned int > ( const std::string &  s )

inline

Returns

std::stoul(s)

fromString< unsigned long >()

template<>

unsigned long gz::fromString< unsigned long > ( const std::string &  s )

inline

Returns

std::stoul(s)

fromString< unsigned long long >()

template<>

unsigned long long gz::fromString< unsigned long long > ( const std::string &  s )

inline

Returns

std::stoull(s)