memset, wmemset
Sets buffers to a specified character.
void *memset(
void *dest,
int c,
size_t count
);
wchar_t *wmemset(
wchar_t *dest,
wchar_t c,
size_t count
);
Parameters
dest
Pointer to destination.c
Character to set.count
Number of characters.
Return Value
The value of dest.
Remarks
Sets the first count characters of dest to the character c.
Security Note Make sure that the destination buffer has enough room for at least count characters. For more information, see Avoiding Buffer Overruns.
Requirements
Routine |
Required header |
|---|---|
memset |
<memory.h> or <string.h> |
wmemset |
<wchar.h> |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
All versions of the C run-time libraries.
Example
// crt_memset.c
/* This program uses memset to
* set the first four chars of buffer to "*".
*/
#include <memory.h>
#include <stdio.h>
int main( void )
{
char buffer[] = "This is a test of the memset function";
printf( "Before: %s\n", buffer );
memset( buffer, '*', 4 );
printf( "After: %s\n", buffer );
}
Output
Before: This is a test of the memset function
After: **** is a test of the memset function
Here's an example of the use of wmemset:
// crt_wmemset.c
/* This program uses memset to
* set the first four chars of buffer to "*".
*/
#include <wchar.h>
#include <stdio.h>
int main( void )
{
wchar_t buffer[] = L"This is a test of the wmemset function";
wprintf( L"Before: %s\n", buffer );
wmemset( buffer, '*', 4 );
wprintf( L"After: %s\n", buffer );
}
Output
Before: This is a test of the wmemset function
After: **** is a test of the wmemset function
.NET Framework Equivalent
See Also
Concepts
_strnset, _strnset_l, _wcsnset, _wcsnset_l, _mbsnset, _mbsnset_l