_mbslen.cpp File Reference

#include <corecrt_internal.h>
#include <stdlib.h>

Include dependency graph for _mbslen.cpp:

Go to the source code of this file.

Functions
_Check_return_	_Post_satisfies_ ((return<=_String_length_(string) &&return<=max_size)||return==(size_t) -1) static size_t __cdecl common_mbstrlen_l(char const *const string
	_ASSERTE (locale_update.GetLocaleT() ->locinfo->_public._locale_mb_cur_max==1||locale_update.GetLocaleT() ->locinfo->_public._locale_mb_cur_max==2)
	if (locale_update.GetLocaleT() ->locinfo->_public._locale_mb_cur_max==1)
	if (__acrt_MultiByteToWideChar(locale_update.GetLocaleT() ->locinfo->_public._locale_lc_codepage, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS, string, static_cast< int >(max_size), nullptr, 0)==0)
	for (char const *it=string;size< max_size &&*it;++n,++it,++size)
size_t __cdecl	_mbstrlen_l (char const *const string, _locale_t const locale)
size_t __cdecl	_mbstrlen (char const *const string)
size_t __cdecl	_mbstrnlen_l (char const *const string, size_t const max_size, _locale_t const locale)
size_t __cdecl	_mbstrnlen (char const *const string, size_t const max_size)

Variables
_Check_return_ size_t const	max_size
_Check_return_ size_t const _locale_t const	locale
size_t	n = 0
size_t	size = 0

Function Documentation

_ASSERTE()

_ASSERTE

(

locale_update.GetLocaleT() ->locinfo->_public.

_locale_mb_cur_max = =1||locale_update.GetLocaleT() ->locinfo->_public._locale_mb_cur_max==2

)

_mbstrlen()

size_t __cdecl _mbstrlen

(

char const *const

string

)

Definition at line 87 of file _mbslen.cpp.

{
    if (!__acrt_locale_changed())
    {
        return strlen(string);
    }
    else
    {
        return _mbstrlen_l(string, nullptr);
    }
}

_mbstrlen_l()

size_t __cdecl _mbstrlen_l	(	char const *const	string,
		_locale_t const	locale
	)

Definition at line 79 of file _mbslen.cpp.

{
    return common_mbstrlen_l(string, _CRT_UNBOUNDED_BUFFER_SIZE, locale);
}

Referenced by _mbstrlen().

_mbstrnlen()

size_t __cdecl _mbstrnlen	(	char const *const	string,
		size_t const	max_size
	)

Definition at line 113 of file _mbslen.cpp.

{
    return _mbstrnlen_l(string, max_size, nullptr);
}

_mbstrnlen_l()

size_t __cdecl _mbstrnlen_l	(	char const *const	string,
		size_t const	max_size,
		_locale_t const	locale
	)

Definition at line 101 of file _mbslen.cpp.

{
    _VALIDATE_RETURN(string != nullptr,   EINVAL, static_cast<size_t>(-1));
    _VALIDATE_RETURN(max_size <= INT_MAX, EINVAL, static_cast<size_t>(-1));
 
    return common_mbstrlen_l(string, max_size, locale);
}

Referenced by _mbstrnlen().

_Post_satisfies_()

_Check_return_ _Post_satisfies_

(

(return<=_String_length_(string) &&return<=max_size)||

return = = (size_t)-1

)

const

for()

for

(

)

Definition at line 60 of file _mbslen.cpp.

    {
        if (_isleadbyte_fast_internal(static_cast<unsigned char>(*it), locale_update.GetLocaleT()))
        {
            ++size;
            if (size >= max_size)
                break;
 
            ++it;
            if (*it == '\0')
                break;
        }
    }

if() [1/2]

if

(

__acrt_MultiByteToWideChar( locale_update.GetLocaleT() ->locinfo->_public._locale_lc_codepage, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS, string, static_cast< int >(max_size), nullptr, 0)

= = 0

)

Definition at line 43 of file _mbslen.cpp.

    {
        // There was a bad multibyte character:
        errno = EILSEQ;
        return static_cast<size_t>(-1);
    }

if() [2/2]

if

(

locale_update.GetLocaleT() ->locinfo->_public.

_locale_mb_cur_max = = 1

)

Definition at line 37 of file _mbslen.cpp.

    {
        return strnlen(string, max_size);
    }

Variable Documentation

locale

_Check_return_ size_t const _locale_t const locale

Initial value:

{
    _LocaleUpdate locale_update(locale)

Definition at line 27 of file _mbslen.cpp.

max_size

_Check_return_ size_t const max_size

Definition at line 26 of file _mbslen.cpp.

Referenced by _mbstrnlen(), _mbstrnlen_l(), for(), and if().

n

size_t n = 0

Definition at line 58 of file _mbslen.cpp.

size

return size = 0

Definition at line 59 of file _mbslen.cpp.

Referenced by for().