FreeBSD Manual Pages
std::floating_point(3) C++ Standard Libary std::floating_point(3) NAME std::floating_point - std::floating_point Synopsis Defined in header <concepts> template < class T > (since C++20) concept floating_point = std::is_floating_point_v<T>; The concept floating_point<T> is satisfied if and only if T is a floating-point type. Example // Run this code #include <concepts> #include <iostream> #include <type_traits> constexpr std::floating_point auto x2(std::floating_point auto x) { return x + x; } constexpr std::integral auto x2(std::integral auto x) { return x << 1; } int main() { constexpr auto d = x2(1.1); static_assert(std::is_same_v<double const, decltype(d)>); std::cout << d << '\n'; constexpr auto f = x2(2.2f); static_assert(std::is_same_v<float const, decltype(f)>); std::cout << f << '\n'; constexpr auto i = x2(444); static_assert(std::is_same_v<int const, decltype(i)>); std::cout << i << '\n'; } Output: 2.2 4.4 888 See also is_floating_point checks if a type is a floating-point type (C++11) (class template) http://cppreference.com 2022.07.31 std::floating_point(3)
NAME | Synopsis | Example | Output: | See also
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=std::floating_point&sektion=3&manpath=FreeBSD+Ports+15.0>