Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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is_floating_point

template <class T>
struct is_floating_point : public true_type-or-false_type {};

Inherits: If T is a (possibly cv-qualified) floating point type then inherits from true_type, otherwise inherits from false_type.

C++ Standard Reference: 3.9.1p8.

Header: #include <boost/type_traits/is_floating_point.hpp> or #include <boost/type_traits.hpp>

Examples:

is_floating_point<float> inherits from true_type.

is_floating_point<double>::type is the type true_type.

is_floating_point<long double>::value is an integral constant expression that evaluates to true.

is_floating_point<T>::value_type is the type bool.


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