_strset, _strset_l, _wcsset, _wcsset_l, _mbsset, _mbsset_l

Sets characters of a string to a character. More secure versions of these functions are available; see _strset_s, _strset_s_l, _wcsset_s, _wcsset_s_l, _mbsset_s, _mbsset_s_l.

Syntax

char *_strset(
   char *str,
   int c
);
char *_strset_l(
   char *str,
   int c,
   _locale_t locale
);
wchar_t *_wcsset(
   wchar_t *str,
   wchar_t c
);
wchar_t *_wcsset_l(
   wchar_t *str,
   wchar_t c,
   _locale_t locale
);
unsigned char *_mbsset(
   unsigned char *str,
   unsigned int c
);
unsigned char *_mbsset_l(
   unsigned char *str,
   unsigned int c,
   _locale_t locale
);

Parameters

str
Null-terminated string to be set.

c
Character setting.

locale
Locale to use.

Return value

Returns a pointer to the altered string.

Remarks

The _strset function sets all characters (except the terminating null character) of str to c, converted to char. _wcsset and _mbsset_l are wide-character and multibyte-character versions of _strset, and the data types of the arguments and return values vary accordingly. These functions behave identically otherwise.

_mbsset validates its parameters. If str is a null pointer, the invalid parameter handler is invoked, as described in Parameter validation. If execution is allowed to continue, _mbsset returns NULL and sets errno to EINVAL. _strset and _wcsset don't validate their parameters.

The output value is affected by the setting of the LC_CTYPE category setting of the locale. For more information, see setlocale. The versions of these functions are identical, except that the ones that don't have the _l suffix use the current locale and the ones that do have the _l suffix instead use the locale parameter that's passed in. For more information, see Locale.

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Generic-text routine mappings

Requirements

For more compatibility information, see Compatibility.

Example

// crt_strset.c
// compile with: /W3

#include <string.h>
#include <stdio.h>

int main( void )
{
   char string[] = "Fill the string with something.";
   printf( "Before: %s\n", string );
   _strset( string, '*' ); // C4996
   // Note: _strset is deprecated; consider using _strset_s instead
   printf( "After:  %s\n", string );
}

Before: Fill the string with something.
After:  *******************************

See also

String manipulation
Locale
Interpretation of multibyte-character sequences
_mbsnbset, _mbsnbset_l
memset, wmemset
strcat, wcscat, _mbscat
strcmp, wcscmp, _mbscmp
strcpy, wcscpy, _mbscpy
_strnset, _strnset_l, _wcsnset, _wcsnset_l, _mbsnset, _mbsnset_l