NAME
    iseven - whether a value is an even integer

SYNOPSIS
    iseven(x)

TYPES
    x		any, &any

    return	int

DESCRIPTION
    Determine if x is an even integer.  This function will return 1 if x is
    even integer, 0 otherwise.

EXAMPLE
    > print iseven(2.0), iseven(1), iseven("0")
    1 0 0

    > print iseven(2i), iseven(1e20), iseven(1/3)
    0 1 0

LIMITS
    none

LIBRARY
    none

SEE ALSO
    iseven, isint, isnum, isodd, isreal
