is_arithmetic Class


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Tests if type is arithmetic.

template <class Ty>  
struct is_arithmetic;  


The type to query.

An instance of the type predicate holds true if the type Ty is an arithmetic type, that is, an integral type or a floating point type, or a cv-qualified form of one of them, otherwise it holds false.

// std_tr1__type_traits__is_arithmetic.cpp   
// compile with: /EHsc   
#include <type_traits>   
#include <iostream>   
struct trivial   
    int val;   
int main()   
    std::cout << "is_arithmetic<trivial> == " << std::boolalpha   
        << std::is_arithmetic<trivial>::value << std::endl;   
    std::cout << "is_arithmetic<int> == " << std::boolalpha   
        << std::is_arithmetic<int>::value << std::endl;   
    std::cout << "is_arithmetic<float> == " << std::boolalpha   
        << std::is_arithmetic<float>::value << std::endl;   
    return (0);   

is_arithmetic<trivial> == false  
is_arithmetic<int> == true  
is_arithmetic<float> == true  

Header: <type_traits>

Namespace: std

is_floating_point Class
is_integral Class