Function makeDecodeHex

src/jrd/SysFunction.cpp:1556–1572

void makeDecodeHex(DataTypeUtilBase* dataTypeUtil, const SysFunction* function, dsc* result, int argsCount, const dsc** args)
{
	fb_assert(argsCount == 1);
	if (args[0]->isBlob())
		result->makeBlob(isc_blob_untyped, ttype_binary);
	else if (args[0]->isText())
	{
		unsigned len = characterLen(dataTypeUtil, args[0]);
	 	if (len % 2 || !len)
 			status_exception::raise(Arg::Gds(isc_odd_hex_len) << Arg::Num(len));
		result->makeVarying(len / 2, ttype_binary);
	}
	else
		status_exception::raise(Arg::Gds(isc_tom_strblob));

	result->setNullable(args[0]->isNullable());
}


void makeEncodeHex(DataTypeUtilBase* dataTypeUtil, const SysFunction* function, dsc* result, int argsCount, const dsc** args)