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++)?

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

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

There is no typeof operator in standard C++.

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.