Function ucvector_resize

depends/lodepng/lodepng.cpp:270–282

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

/*returns 1 if success, 0 if failure ==> nothing done*/
static unsigned ucvector_resize(ucvector* p, size_t size) {
  if(size > p->allocsize) {
    size_t newsize = size + (p->allocsize >> 1u);
    void* data = lodepng_realloc(p->data, newsize);
    if(data) {
      p->allocsize = newsize;
      p->data = (unsigned char*)data;
    }
    else return 0; /*error: not enough memory*/
  }
  p->size = size;
  return 1; /*success*/
}

static ucvector ucvector_init(unsigned char* buffer, size_t size) {
  ucvector v;