NAME
    devnull - does nothing

SYNOPSIS
    custom("devnull" [, arg ...])

TYPES
    arg		any

    return	null

DESCRIPTION
    This custom function does nothing.  It is intented for testing
    of the general custom interface.

EXAMPLE
    > custom("devnull", foo, bar, baz, 3+4.5i, pi())

LIMITS
    calc must be built with ALLOW_CUSTOM= -DCUSTOM
    calc must be executed with a -C arg.

LIBRARY
    none

SEE ALSO
    custom