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#include <stdarg.h>
#include <string.h>
#include "stralloc.h"
int stralloc_catm_internal(stralloc* sa, ...) {
va_list a;
const char* s;
size_t n=0;
va_start(a,sa);
while ((s=va_arg(a,const char*))) {
size_t tmp = strlen(s);
if (n + tmp < n) {
va_end(a);
return 0; // integer overflow
// integer overflow should not be possible, but someone could pass
// the same string twice to provoke it. Better check than sorry.
}
n += tmp;
}
va_end(a);
stralloc_readyplus(sa,n);
va_start(a,sa);
while ((s=va_arg(a,const char*)))
if (stralloc_cats(sa,s)==0) {
va_end(a);
return 0;
}
va_end(a);
return 1;
}
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