- snprintf (final_color, INSTR_DEFAULT_STR_SIZE, "%f %f %f", /*red*/drand48(), /*green*/drand48(), /*blue*/drand48());
+ double red = drand48();
+ double green = drand48();
+ double blue = drand48();
+ snprintf (final_color, INSTR_DEFAULT_STR_SIZE, "%f %f %f", red, green, blue);