numeric_limits::has_infinity
Tests whether a type has a representation for positive infinity.
static const bool has_infinity = false;
Return Value
true if the type has a representation for positive infinity; false if not.
Remarks
The member returns true if is_iec559 is true.
Example
// numeric_limits_has_infinity.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>
using namespace std;
int main( )
{
cout << "Whether float objects have infinity: "
<< numeric_limits<float>::has_infinity
<< endl;
cout << "Whether double objects have infinity: "
<< numeric_limits<double>::has_infinity
<< endl;
cout << "Whether long int objects have infinity: "
<< numeric_limits<long int>::has_infinity
<< endl;
}
Whether float objects have infinity: 1 Whether double objects have infinity: 1 Whether long int objects have infinity: 0
Requirements
Header: <limits>
Namespace: std