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Simple question: How to verify two types are the same?

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Stephen Gross

12 Apr 2005 12 Apr '05

6:04 p.m.

Hi all... I know this is a simple question, but I can't figure out which boost function to use. How do I find out if two types are the same type? For example: template void compare() { if(boost::types_are_the_same::result == true) ... } Thanks! --Steve Stephen Gross Case Western School of Medicine Cleveland, OH "The large print giveth and the small print taketh away." - Tom Waits

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Fredrik Blomqvist

12 Apr 12 Apr

6:42 p.m.

New subject: Simple question: How to verify two types are the same?

Stephen Gross wrote:

Hi all... I know this is a simple question, but I can't figure out which boost function to use. How do I find out if two types are the same type?

For example:

template void compare() { if(boost::types_are_the_same::result == true) ... }

Almost. Use boost::is_same::value See http://www.boost.org/libs/type_traits/index.html#relationships HTH // Fredrik Blomqvist

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Bruce Trask

6:56 p.m.

New subject: Simple question: How to verify two types are the same?

Try boost::is_same::value

-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users- bounces@lists.boost.org] On Behalf Of Stephen Gross Sent: Tuesday, April 12, 2005 2:05 PM To: boost-users@lists.boost.org Subject: [Boost-users] Simple question: How to verify two types are the same?

Hi all... I know this is a simple question, but I can't figure out which boost function to use. How do I find out if two types are the same type?

For example:

template void compare() { if(boost::types_are_the_same::result == true) ... }

Thanks! --Steve

Stephen Gross Case Western School of Medicine Cleveland, OH

"The large print giveth and the small print taketh away." - Tom Waits

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Stephen Gross

7:11 p.m.

New subject: Simple question: How to verify two types are thesame?

Try boost::is_same::value

I tried this, but I think it works at runtime, not compile time (using typeid(...)). I need to find a compile-time solution... --Steve

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Bruce Trask

8:08 p.m.

New subject: Simple question: How to verify two types arethesame?

This works at compile time.

-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users- bounces@lists.boost.org] On Behalf Of Stephen Gross Sent: Tuesday, April 12, 2005 3:11 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] Simple question: How to verify two types arethesame?

...
Try boost::is_same::value

I tried this, but I think it works at runtime, not compile time (using typeid(...)). I need to find a compile-time solution...

--Steve

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Bruce Trask
Fredrik Blomqvist
Stephen Gross