--TEST-- gmp_neg() basic tests --EXTENSIONS-- gmp --FILE-- getMessage() . \PHP_EOL; } var_dump(gmp_intval(gmp_neg(0))); $n = gmp_init("0"); var_dump(gmp_intval(gmp_neg($n))); $n = gmp_init("12345678901234567890"); var_dump(gmp_strval(gmp_neg($n))); try { var_dump(gmp_neg(array())); } catch (\TypeError $e) { echo $e->getMessage() . \PHP_EOL; } echo "Done\n"; ?> --EXPECT-- int(0) int(-1) int(1) int(1) gmp_neg(): Argument #1 ($num) is not an integer string int(0) int(0) string(21) "-12345678901234567890" gmp_neg(): Argument #1 ($num) must be of type GMP|string|int, array given Done