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std::integral(3)	      C++ Standard Libary	      std::integral(3)

NAME
       std::integral - std::integral

Synopsis
	  Defined in header <concepts>
	  template< class T >			     (since C++20)
	  concept integral = std::is_integral_v<T>;

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

Example
       // Run this code

	#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:

See also
	  is_integral checks if	a type is an integral type
	  (C++11)     (class template)

http://cppreference.com		  2024.06.10		      std::integral(3)

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