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Reactos
1/***
2*strncat.c - append n chars of string to new string
3*
4* Copyright (c) Microsoft Corporation. All rights reserved.
5*
6*Purpose:
7* defines strncat() - appends n characters of string onto
8* end of other string
9*
10*******************************************************************************/
11
12#include <string.h>
13
14/***
15*char *strncat(front, back, count) - append count chars of back onto front
16*
17*Purpose:
18* Appends at most count characters of the string back onto the
19* end of front, and ALWAYS terminates with a null character.
20* If count is greater than the length of back, the length of back
21* is used instead. (Unlike strncpy, this routine does not pad out
22* to count characters).
23*
24*Entry:
25* char *front - string to append onto
26* char *back - string to append
27* unsigned count - count of max characters to append
28*
29*Exit:
30* returns a pointer to string appended onto (front).
31*
32*Uses:
33*
34*Exceptions:
35*
36*******************************************************************************/
37
38char * __cdecl strncat (
39 char * front,
40 const char * back,
41 size_t count
42 )
43{
44 char *start = front;
45
46 while (*front++)
47 ;
48 front--;
49
50 while (count--)
51 if ((*front++ = *back++) == 0)
52 return(start);
53
54 *front = '\0';
55 return(start);
56}