static int fromiccpcs(int cs)
{
	switch (cs) {
	case ICC_CS_RGB:
		return JAS_CLRSPC_GENRGB;
		break;
	case ICC_CS_YCBCR:
		return JAS_CLRSPC_GENYCBCR;
		break;
	case ICC_CS_GRAY:
		return JAS_CLRSPC_GENGRAY;
		break;
	}
	return JAS_CLRSPC_UNKNOWN;
}

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.