std:: unsigned_integral

El concepto unsigned_integral<T> se satisface si y solo si T es un tipo integral y std:: is_signed_v < T > es false .

Notas

unsigned_integral<T> puede ser satisfecho por un tipo que no es un tipo entero sin signo , por ejemplo, bool .

Ejemplo

#include <concepts>
#include <iostream>
#include <string_view>
void test(std::signed_integral auto x, std::string_view text = "")
{
    std::cout << text << " (" + (text == "") << x << ") is a signed integral\n";
}
void test(std::unsigned_integral auto x, std::string_view text = "")
{
    std::cout << text << " (" + (text == "") << x << ") is an unsigned integral\n";
}
void test(auto x, std::string_view text = "")
{
    std::cout << text << " (" + (text == "") << x << ") is non-integral\n";
}
int main()
{
    test(42);               // con signo
    test(0xFULL, "0xFULL"); // sin signo
    test('A');              // dependiente de la plataforma
    test(true, "true");     // sin signo
    test(4e-2, "4e-2");     // no entero (hex-float)
    test("∫∫");             // no entero
}

(42) is a signed integral
0xFULL (15) is an unsigned integral
(A) is a signed integral
true (1) is an unsigned integral
4e-2 (0.04) is non-integral
(∫∫) is non-integral

Referencias

Véase también