X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrncat.c;h=44dcb402614b0e7ff397f7a20b9f3922e075d340;hb=02c1ddcae6c88b55d2f4de825ee6c6456150b8ae;hp=4a819919e1b969e3aa3283abba399ab28f4404f4;hpb=1d9d92ba957a0b8307c9a65c35867fde68e6533b;p=pdclib diff --git a/functions/string/strncat.c b/functions/string/strncat.c index 4a81991..44dcb40 100644 --- a/functions/string/strncat.c +++ b/functions/string/strncat.c @@ -1,22 +1,32 @@ -/* ---------------------------------------------------------------------------- - * $Id$ - * ---------------------------------------------------------------------------- - * Public Domain C Library - http://pdclib.sourceforge.net - * This code is Public Domain. Use, modify, and redistribute at will. - * --------------------------------------------------------------------------*/ +/* $Id$ */ -#include <__size_t.h> +/* Release $Name$ */ -char * strncat( char * restrict dest, const char * restrict src, size_t n ) +/* strncat( char *, const char *, size_t ) + + This file is part of the Public Domain C Library (PDCLib). + Permission is granted to use, modify, and / or redistribute at will. +*/ + +#include <_PDCLIB_aux.h> +#include + +char * strncat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n ) { - char * tmp = dest; - while ( *dest != '\0' ) + char * rc = s1; + while ( *s1 ) { - ++dest; + ++s1; } - while ( ( n-- > 0 ) && ( *src != '\0' ) ) + while ( n && ( *s1++ = *s2++ ) ) { - *dest++ = *src++; + --n; } - return tmp; + if ( n == 0 ) + { + *s1 = '\0'; + } + return rc; } + +#warning Test driver missing.