std::is_arithmetic

From Cppreference

If T is an arithmetic type (that is, an integral type or a floating-point type), provides the member constant value equal true. For any other type, value is false.

[edit] Notes

Arithmetic types are the types for which the built-in arithmetic operators (+, -, *, /) are defined (possibly in combination with the usual arithmetic conversions)

Specializations of std::numeric_limits are provided for all arithmetic types.

[edit] Equivalent definition

template< class T >
struct is_arithmetic : std::integral_constant<bool,
                                              std::is_integral<T>::value ||
                                              std::is_floating_point<T>::value> {};

[edit] Example

#include <iostream>
#include <type_traits>
 
class A {};
 
int main() 
{
    std::cout << std::boolalpha;
    std::cout << std::is_arithmetic<A>::value << '\n';
    std::cout << std::is_arithmetic<int>::value << '\n';
    std::cout << std::is_arithmetic<int&>::value << '\n';
    std::cout << std::is_arithmetic<int*>::value << '\n';
    std::cout << std::is_arithmetic<float>::value << '\n';
    std::cout << std::is_arithmetic<float&>::value << '\n';
    std::cout << std::is_arithmetic<float*>::value << '\n';
}

Output:

false
true
false
false
true
false
false

[edit] See also