65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
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/***
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*strncat.c - append n chars of string to new string
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*
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* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines strncat() - appends n characters of string onto
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* end of other string
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*
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*Revision History:
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* 05-31-89 JCR C version created.
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* 02-27-90 GJF Fixed calling type, #include <cruntime.h>, fixed
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* copyright.
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* 10-02-90 GJF New-style function declarator.
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* 09-02-93 GJF Replaced _CALLTYPE1 with __cdecl.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <string.h>
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/***
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*char *strncat(front, back, count) - append count chars of back onto front
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*
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*Purpose:
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* Appends at most count characters of the string back onto the
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* end of front, and ALWAYS terminates with a null character.
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* If count is greater than the length of back, the length of back
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* is used instead. (Unlike strncpy, this routine does not pad out
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* to count characters).
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*
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*Entry:
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* char *front - string to append onto
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* char *back - string to append
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* unsigned count - count of max characters to append
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*
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*Exit:
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* returns a pointer to string appended onto (front).
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*
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*Uses:
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*
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*Exceptions:
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*
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*******************************************************************************/
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char * __cdecl strncat (
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char * front,
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const char * back,
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size_t count
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)
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{
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char *start = front;
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while (*front++)
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;
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front--;
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while (count--)
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if (!(*front++ = *back++))
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return(start);
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*front = '\0';
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return(start);
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}
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