windows-nt/Source/XPSP1/NT/base/crts/crtw32/string/strnset.c

56 lines
1.3 KiB
C
Raw Permalink Normal View History

2020-09-26 03:20:57 -05:00
/***
*strnset.c - set first n characters to single character
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _strnset() - sets at most the first n characters of a string
* to a given character.
*
*Revision History:
* 02-27-90 GJF Fixed calling type, #include <cruntime.h>, fixed
* copyright.
* 08-14-90 SBM Compiles cleanly with -W3
* 10-02-90 GJF New-style function declarator.
* 01-18-91 GJF ANSI naming.
* 09-03-93 GJF Replaced _CALLTYPE1 with __cdecl.
*
*******************************************************************************/
#include <cruntime.h>
#include <string.h>
/***
*char *_strnset(string, val, count) - set at most count characters to val
*
*Purpose:
* Sets the first count characters of string the character value.
* If the length of string is less than count, the length of
* string is used in place of n.
*
*Entry:
* char *string - string to set characters in
* char val - character to fill with
* unsigned count - count of characters to fill
*
*Exit:
* returns string, now filled with count copies of val.
*
*Exceptions:
*
*******************************************************************************/
char * __cdecl _strnset (
char * string,
int val,
size_t count
)
{
char *start = string;
while (count-- && *string)
*string++ = (char)val;
return(start);
}