C++ typeof operator

very short q开发者_高级运维uestion.

Is C++ typeof operator standard? de facto standard? which compilers do not provided it (besides Microsoft C++)?

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The typeof operator is nonstandard, but the upcoming C++ standard will have decltype.

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As noted, C++0x has decltype. You can take a look at Boost.Typeof in the meantime.

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There is no typeof operator in standard C++.

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The typeof is an extension provided by GNU compiler primarily for C language: link to official gnu gcc page. So it isn`t a standard operator.