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Top 5 C++ language features #5 - auto

JT @ Embarcadero – auto is a new keyword in C++11 that provides automatic type inference when declaring a variable and assigning a value. Rather than having to know beforehand and specify the variable type, a C++11 developer can use auto to figure out the type for him, for example: //infers an integer auto i = 5; //infers a double auto d = 5.0; //note auto infers a double unless the f suffix is used //infers a float auto f = 5.0f; For these intrinsic types it seems overly powerful but where auto really helps simplify C++ programming is when dealing with template classes, for example, I don’t need to know ...
Favorite? Off-Topic? J T @ 2012-11-12 21:45


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