Type Traits
Explore how type traits provide compile-time information about template types, enabling you to create optimized, correct C++ code. Understand the two categories of type traits that return boolean values or new types, and learn to apply them for efficient template metaprogramming and type transformations.
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When doing template metaprogramming, we may often find ourself in situations where we need information about the types we are dealing with at compile time. When writing regular (non-generic) C++ code, we work with concrete types that we have complete knowledge about, but this is not the case when writing a template; the concrete types are not determined until the compiler is instantiating a template. Type traits let us extract information about the types our templates are dealing with to generate efficient and correct C++ code.
In order to extract ...