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std::signed_integral(3) C++ Standard Libary std::signed_integral(3) NAME std::signed_integral - std::signed_integral Synopsis Defined in header <concepts> template < class T > (since C++20) concept signed_integral = std::integral<T> && std::is_signed_v<T>; The concept signed_integral<T> is satisfied if and only if T is an integral type and std::is_signed_v<T> is true. Notes signed_integral<T> may be satisfied by a type that is not a signed integer type, for example, char (on a system where char is signed). Example // Run this code #include <concepts> #include <iostream> void print(std::signed_integral auto i) { std::cout << "Signed integral: " << i << '\n'; } void print(std::unsigned_integral auto u) { std::cout << "Unsigned integral: " << u << '\n'; } void print(auto x) { std::cout << "Non-integral: " << x << '\n'; } int main() { print(42); // signed print(0xFull); // unsigned print(true); // unsigned print('A'); // platform-dependent print(4e-2); // non-integral (hex-float) print(""); // non-integral } Possible output: Signed integral: 42 Unsigned integral: 15 Unsigned integral: 1 Signed integral: A Non-integral: 0.04 Non-integral: See also is_integral checks if a type is an integral type (C++11) (class template) is_signed checks if a type is a signed arithmetic type (C++11) (class template) http://cppreference.com 2022.07.31 std::signed_integral(3)
NAME | Synopsis | Notes | Example | Possible output: | See also
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