Function string_resize

dependency/densecrf/examples/lodepng.cpp:279–288

returns 1 if success, 0 if failure ==> nothing done*/

#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
/*returns 1 if success, 0 if failure ==> nothing done*/
static unsigned string_resize(char** out, size_t size)
{
    char* data = (char*)lodepng_realloc(*out, size + 1);
    if(data)
    {
        data[size] = 0; /*null termination char*/
        *out = data;
    }
    return data != 0;
}

/*init a {char*, size_t} pair for use as string*/
static void string_init(char** out)