_strninc, _wcsninc, _mbsninc, _mbsninc_l

Article
06/05/2017

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at _strninc, _wcsninc, _mbsninc, _mbsninc_l.

Advances a string pointer by n characters.

Important

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

Syntax

char *_strninc(  
   const char *str,  
   size_t count   
);  
wchar_t *_wcsninc(  
   const wchar_t *str,  
   size_t count   
);  
unsigned char *_mbsninc(  
   const unsigned char *str,  
   size_t count   
);  
unsigned char *_mbsninc(  
   const unsigned char *str,  
   size_t count,  
   _locale_t locale  
);

Parameters

str
Source string.

count
Number of characters to increment a string pointer.

locale
Locale to use.

Return Value

Each of these routines returns a pointer to str after str has been incremented by count characters or NULL if the supplied pointer is NULL. If count is greater than or equal to the number of characters in str, the result is undefined.

Remarks

The _mbsninc function increments str by count multibyte characters. _mbsninc recognizes multibyte-character sequences according to the multibyte code page currently in use.

Generic-Text Routine Mappings

Tchar.h routine	_UNICODE and _MBCS not defined	_MBCS defined	_UNICODE defined
`_tcsninc`	`_strninc`	`_mbsninc`	`_wcsninc`

_strninc and _wcsninc are single-byte–character string and wide-character string versions of _mbsninc. _wcsninc and _strninc are provided only for this mapping and should not be used otherwise. For more information, see Using Generic-Text Mappings and Generic-Text Mappings.

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

Requirements

Routine	Required header
`_mbsninc`	<mbstring.h>
`_mbsninc_l`	<mbstring.h>
`_strninc`	<tchar.h>
`_wcsninc`	<tchar.h>

For more compatibility information, see Compatibility.

.NET Framework Equivalent

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