huwcampbell.com
Reactos
1/***
2*strncpy.c - copy at most n characters of string
3*
4* Copyright (c) Microsoft Corporation. All rights reserved.
5*
6*Purpose:
7* defines strncpy() - copy at most n characters of string
8*
9*******************************************************************************/
10
11#include <string.h>
12
13#if defined _M_ARM
14 #pragma function(strncpy)
15#endif
16
17/***
18*char *strncpy(dest, source, count) - copy at most n characters
19*
20*Purpose:
21* Copies count characters from the source string to the
22* destination. If count is less than the length of source,
23* NO NULL CHARACTER is put onto the end of the copied string.
24* If count is greater than the length of sources, dest is padded
25* with null characters to length count.
26*
27*
28*Entry:
29* char *dest - pointer to destination
30* char *source - source string for copy
31* unsigned count - max number of characters to copy
32*
33*Exit:
34* returns dest
35*
36*Exceptions:
37*
38*******************************************************************************/
39
40char * __cdecl strncpy (
41 char * dest,
42 const char * source,
43 size_t count
44 )
45{
46 char *start = dest;
47
48 while (count && (*dest++ = *source++) != '\0') /* copy string */
49 count--;
50
51 if (count) /* pad out with zeroes */
52 while (--count)
53 *dest++ = '\0';
54
55 return(start);
56}