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_strnextc, _wcsnextc, _mbsnextc, _mbsnextc_l

Finds the next character in a string.

Important note Important

_mbsnextc and _mbsnextc_l cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.

unsigned int _strnextc(
   const char *str
);
unsigned int _wscnextc(
   const wchar_t *str
); 
unsigned int _mbsnextc(
   const unsigned char *str 
);
unsigned int _mbsnextc_l(
   const unsigned char *str,
   _locale_t locale
);

str

Source string.

locale

Locale to use.

Each of these functions returns the integer value of the next character in str.

The _mbsnextc function returns the integer value of the next multibyte character in str, without advancing the string pointer. _mbsnextc recognizes multibyte-character sequences according to the multibyte code page currently in use.

If str is NULL, the invalid parameter handler is invoked, as described in Parameter Validation. If execution is allowed to continue, errno is set to EINVAL and the function returns 0.

Security Note   This API incurs a potential threat brought about by a buffer overrun problem. Buffer overrun problems are a frequent method of system attack, resulting in an unwarranted elevation of privilege. For more information, see Avoiding Buffer Overruns.

Generic-Text Routine Mappings

Tchar.h routine

_UNICODE and _MBCS not defined

_MBCS defined

_UNICODE defined

_tcsnextc

_strnextc

_mbsnextc

_wcsnextc

_strnextc and _wcsnextc are single-byte–character string and wide-character string versions of _mbsnextc. _wcsnextc returns the integer value of the next wide character in string; _strnextc returns the integer value of the next single-byte character in string. _strnextc and _wcsnextc are provided only for this mapping and should not be used otherwise. For more information, see Using Generic-Text Mappings and Generic-Text Mappings.

_mbsnextc_l is identical except that it uses the locale parameter passed in instead. For more information, see Locale.

Routine

Required header

_mbsnextc

<mbstring.h>

_mbsnextc_l

<mbstring.h>

_strnextc

<tchar.h>

_wcsnextc

<tchar.h>

For more compatibility information, see Compatibility.

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

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