SYNOPSIS

int	reverse	(	int arg	)
string	reverse	(	string arg	)
mixed *	reverse	(	mixed * arg	)
mixed *	reverse	(	mixed * & arg	)

DESCRIPTION

Reverse the content of array or string arg and return the result. If arg is an integer, the bits in the integer are reversed.

If called in the reference variant, the argument array itself is reversed and then returned.

USAGE

reverse(0x306a) // returns 0x560c0000

reverse("test") // returns "tset"

mixed * arr = ({ 1, 2 });
reverse(arr)  // returns ({ 2, 1 }), leaves arr unchanged.
reverse(&arr) // returns ({ 2, 1 }), sets arr to ({ 2, 1 })

Limit

Reference ranges like reverse(&(a[1..2])) are not supported.

HISTORY

• introduced (3.3.529)
• changed (3.3.532) – added the reversal of bits in an integer.