__crt_stdio_input::string_input_adapter< Character > Class Template Reference

#include <corecrt_internal_stdio_input.h>

Public Types
using	traits = __acrt_stdio_char_traits< Character >
using	char_type = Character
using	unsigned_char_type = typename traits::unsigned_char_type
using	int_type = typename traits::int_type

Public Member Functions
	string_input_adapter (char_type const *const string, size_t const length) throw ()
bool	validate () throw ()
int_type	get () throw ()
void	unget (int_type const c) throw ()
size_t	characters_read () const throw ()

Private Attributes
char_type const *	_first
char_type const *	_last
char_type const *	_it

Detailed Description

template<typename Character>
class __crt_stdio_input::string_input_adapter< Character >

Definition at line 130 of file corecrt_internal_stdio_input.h.

Member Typedef Documentation

char_type

template<typename Character >

using __crt_stdio_input::string_input_adapter< Character >::char_type = Character

Definition at line 135 of file corecrt_internal_stdio_input.h.

int_type

template<typename Character >

using __crt_stdio_input::string_input_adapter< Character >::int_type = typename traits::int_type

Definition at line 137 of file corecrt_internal_stdio_input.h.

traits

template<typename Character >

using __crt_stdio_input::string_input_adapter< Character >::traits = __acrt_stdio_char_traits<Character>

Definition at line 134 of file corecrt_internal_stdio_input.h.

unsigned_char_type

template<typename Character >

using __crt_stdio_input::string_input_adapter< Character >::unsigned_char_type = typename traits::unsigned_char_type

Definition at line 136 of file corecrt_internal_stdio_input.h.

Constructor & Destructor Documentation

string_input_adapter()

template<typename Character >

__crt_stdio_input::string_input_adapter< Character >::string_input_adapter ( char_type const *const  string, size_t const  length  ) throw ( )

inline

Definition at line 139 of file corecrt_internal_stdio_input.h.

        : _first{string}, _last{string + length}, _it{string}
    {
    }

Member Function Documentation

characters_read()

template<typename Character >

size_t __crt_stdio_input::string_input_adapter< Character >::characters_read ( ) const throw ( )

inline

Definition at line 177 of file corecrt_internal_stdio_input.h.

    {
        return static_cast<size_t>(_it - _first);
    }

get()

template<typename Character >

int_type __crt_stdio_input::string_input_adapter< Character >::get ( ) throw ( )

inline

Definition at line 154 of file corecrt_internal_stdio_input.h.

    {
        if (_it == _last)
            return traits::eof;
 
        // If we are processing narrow characters, the character value may be
        // negative.  In this case, its value will have been sign extended in
        // the conversion to int_type.  Mask the sign extension bits for
        // compatibility with the other input adapters:
        return static_cast<unsigned_char_type>(*_it++);
    }

unget()

template<typename Character >

void __crt_stdio_input::string_input_adapter< Character >::unget ( int_type const  c ) throw ( )

inline

Definition at line 166 of file corecrt_internal_stdio_input.h.

    {
        if (_it == _first)
            return;
 
        if (_it == _last && c == traits::eof)
            return;
 
        --_it;
    }

validate()

template<typename Character >

bool __crt_stdio_input::string_input_adapter< Character >::validate ( ) throw ( )

inline

Definition at line 147 of file corecrt_internal_stdio_input.h.

    {
        _VALIDATE_RETURN(_it != nullptr, EINVAL, false);
        _VALIDATE_RETURN(_it <= _last,   EINVAL, false);
        return true;
    }

Member Data Documentation

_first

template<typename Character >

char_type const* __crt_stdio_input::string_input_adapter< Character >::_first

private

Definition at line 184 of file corecrt_internal_stdio_input.h.

Referenced by __crt_stdio_input::string_input_adapter< Character >::characters_read(), and __crt_stdio_input::string_input_adapter< Character >::unget().

_it

template<typename Character >

char_type const* __crt_stdio_input::string_input_adapter< Character >::_it

private

Definition at line 186 of file corecrt_internal_stdio_input.h.

Referenced by __crt_stdio_input::string_input_adapter< Character >::characters_read(), __crt_stdio_input::string_input_adapter< Character >::get(), __crt_stdio_input::string_input_adapter< Character >::unget(), and __crt_stdio_input::string_input_adapter< Character >::validate().

_last

template<typename Character >

char_type const* __crt_stdio_input::string_input_adapter< Character >::_last

private

Definition at line 185 of file corecrt_internal_stdio_input.h.

Referenced by __crt_stdio_input::string_input_adapter< Character >::get(), __crt_stdio_input::string_input_adapter< Character >::unget(), and __crt_stdio_input::string_input_adapter< Character >::validate().

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The documentation for this class was generated from the following file:

• sdk/lib/ucrt/inc/corecrt_internal_stdio_input.h