SYNOPSIS
	int to_int(string)
	int to_int(float)
	int to_int(int)
        int to_int(closure)

DESCRIPTION
	Floats are truncated to integer values, strings with leadings
	digits are converted to integers up to the first non-digit.
        lfun-closures are converted into their function index.
	Integers are just returned.

HISTORY
	Introduced in 3.2.1@2

SEE ALSO
	to_string(E), sscanf(E)
