/* str/cat2s.c - Append two C strings to a dynamic str
* Copyright (C) 2001,2005 Bruce Guenter <bruce@untroubled.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "str.h"
/** Append 2 C strings */
int str_cat2s(str* s, const char* a, const char* b)
{
char* ptr;
unsigned alen = strlen(a);
unsigned blen = strlen(b);
if (!str_realloc(s, s->len+alen+blen)) return 0;
ptr = s->s + s->len;
s->len += alen+blen;
memcpy(ptr, a, alen); ptr += alen;
memcpy(ptr, b, blen); ptr += blen;
*ptr = 0;
return 1;
}
#ifdef SELFTEST_MAIN
MAIN
{
static str s;
str_copyb(&s, "abc", 3);
debugstrfn(str_cat2s(&s, "1", "2"), &s);
}
#endif
#ifdef SELFTEST_EXP
result=1 len=5 size=16 s=abc12
#endif