view sbr/concat.c @ 3:f89a9a79e124

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author kono
date Wed, 20 Apr 2005 00:25:01 +0900
parents 442dbbf0ac7d
children
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/* concat.c - concatenate a bunch of strings in managed memory */

#include "../h/mh.h"
#include <stdio.h>
#include <stdarg.h>


/* VARARGS */

char   *concat (char *first, ...)
{
    register char  *cp,
                   *dp,
                   *sp;
    register unsigned   len;
    va_list list;

    len = 1;
    va_start (list, first); 
    len += strlen (first);
    while (cp = va_arg (list, char *))
	len += strlen (cp);
    va_end (list);

    dp = sp = malloc (len);
    if (dp == NULL)
	adios (NULLCP, "unable to allocate string storage");

    va_start (list, first); 
    sp = copy (first, sp);
    while (cp = va_arg (list, char *))
	sp = copy (cp, sp);
    va_end (list);

    return dp;
}