1 /***
2 *strnset.c - set first n characters to single character
3 *
4 * Copyright (c) Microsoft Corporation. All rights reserved.
5 *
6 *Purpose:
7 * defines _strnset() - sets at most the first n characters of a string
8 * to a given character.
9 *
10 *******************************************************************************/
11
12 #include <string.h>
13
14 /***
15 *char *_strnset(string, val, count) - set at most count characters to val
16 *
17 *Purpose:
18 * Sets the first count characters of string the character value.
19 * If the length of string is less than count, the length of
20 * string is used in place of n.
21 *
22 *Entry:
23 * char *string - string to set characters in
24 * char val - character to fill with
25 * unsigned count - count of characters to fill
26 *
27 *Exit:
28 * returns string, now filled with count copies of val.
29 *
30 *Exceptions:
31 *
32 *******************************************************************************/
33
_strnset(char * string,int val,size_t count)34 char * __cdecl _strnset (
35 char * string,
36 int val,
37 size_t count
38 )
39 {
40 char *start = string;
41
42 while (count-- && *string)
43 *string++ = (char)val;
44
45 return(start);
46 }
47