Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://en.cppreference.com/w/cpp/language/../error/../language/../concepts/integral.html below:

std::integral - cppreference.com

The concept integral<T> is satisfied if and only if T is an integral type.

#include <concepts>
#include <iostream>
 
void print(std::integral auto i)
{
    std::cout << "Integral: " << i << '\n';
}
 
void print(auto x)
{
    std::cout << "Non-integral: " << x << '\n';
}
 
int main()
{
    std::cout << std::boolalpha;
 
    static_assert(std::integral<bool>);
    print(true);
 
    static_assert(std::integral<char>);
    print('o');
 
    static_assert(std::integral<int>);
    print(007);
 
    static_assert( ! std::integral<double> );
    print(2e2);
 
    static_assert( ! std::integral<decltype("")> );
    print("∫∫∫");
}

Output:

Integral: true
Integral: o
Integral: 7
Non-integral: 200
Non-integral: ∫∫∫

• C++23 standard (ISO/IEC 14882:2024):

• 18.4.7 Arithmetic concepts [concepts.arithmetic]

• C++20 standard (ISO/IEC 14882:2020):

• 18.4.7 Arithmetic concepts [concepts.arithmetic]

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4