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From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-09-02 12:38:38


Stephen Gross wrote:
> Is there a way to use bind and/or lambda to create a functor that:
>
> (1) Takes as input a single argument (that is ignored), and
> (2) Returns a constant value.
>
> Ideally, something along the lines of:
>
> bind(constant(5), _1) // _1 is passed but ignored.

Using boost::bind:

    boost::bind( identity<int>(), 5 )

where identity returns its argument.

Using lambda:

(_1, 5)


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