Re: [boost] Is there interest in a library for testing existence of a function member of class?

Subject: Re: [boost] Is there interest in a library for testing existence of a function member of class?
From: Sylvain Bougerel (sylvain.bougerel.devel_at_[hidden])
Date: 2014-11-22 09:44:49

Hi Wei,

Have you checked Boost Concept Check library, it looks like it could fit
your use case.

Regards, Sylvain
On 22 Nov 2014 22:33, "胡维" <huwei04_at_[hidden]> wrote:

> Hi,
> I am looking for how to test if a function member of class exist or not in
> compile time.I did not find a solution by google so I wrote a piece of code
> for it.Please let me know if it's already in boost. :)
> Synopsis
> class Bar
> {
> public:
>   Bar(int);
> };
>
> class Foo
> {
> public:
>   Foo(int);
>   int foo(Bar);
> };
>
> // create struct 'has_foo' which is used to test function member
> 'foo'.HAS_FUNCTION_MEMBER(foo)
>
> int main()
> {
>    assert((!has_foo<void(Bar::*)(Bar)>::value));
>    assert((has_foo<int(Foo::*)(Bar)>::value));
>    return 0;
> }
> The code is in my gisthttps://gist.github.com/wehu/1987f716074904d26cf0
> The code only checks if the function is compatible with expected, but not
> require to be exact same.
> Thanks,Wei
>
>
>
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