rahul_1234's blog

Macro
By rahul_1234, history, 9 years ago, In English

Can someone explain me the macro:

#define tr(c,it) for( typeof(c.begin()) it=c.begin(); it!=c.end(); ++it )

Plz stress on use of typeof and why this macro can be used for all the containers.

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9 years ago, # |
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typeof is a non-standard extension. C++11 analog is decltype; but in C++11 this macro is most likely unnecessary because you can just write for (auto& elem : c).

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