Function stbi__mad4sizes_valid

lite/example/cpp_example/mge/cv/stb_image.h:1064–1068

// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM)
static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) {
    return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a * b, c) &&
           stbi__mul2sizes_valid(a * b * c, d) &&
           stbi__addsizes_valid(a * b * c * d, add);
}
#endif

#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || \