man stralloc_copym () - copy string(s) to a stralloc
NAME
stralloc_copym - copy string(s) to a stralloc
SYNTAX
#include <stralloc.h>
int stralloc_copym(stralloc* sa,const char* s, ...);
DESCRIPTION
stralloc_cats copies \0-terminated strings from s... to sa, allocating space if necessary, and returns 1. If there is data in the sa, it is cleared first.
If it runs out of memory, stralloc_copym returns 0. At that point, it may already have copied a few of the strings to sa.
RETURN VALUE
1 for success, 0 on memory allocation failure.