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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;
	    print(true ); static_assert( std::integral<bool> );
	    print( 'o' ); static_assert( std::integral<char> );
	    print( 007 ); static_assert( std::integral<int> );
	    print( 2e2 ); static_assert( !std::integral<float> );
	    print(""); static_assert( !std::integral<decltype("")> );
	}

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		  2022.07.31		      std::integral(3)

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