Export (0) Print
Expand All

numeric_limits::infinity

The representation of positive infinity for a type, if available.

static Type infinity( ) throw( );

Return Value

The representation of positive infinity for a type, if available.

Remarks

The return value is meaningful only if has_infinity is true.

Example

// numeric_limits_infinity.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>

using namespace std;

int main( )
{
   cout << numeric_limits<float>::has_infinity <<endl;
   cout << numeric_limits<double>::has_infinity<<endl;
   cout << numeric_limits<long double>::has_infinity <<endl;
   cout << numeric_limits<int>::has_infinity <<endl;
   cout << numeric_limits<__int64>::has_infinity <<endl;

   cout << "The representation of infinity for type float is: "
        << numeric_limits<float>::infinity( ) <<endl;
   cout << "The representation of infinity for type double is: "
        << numeric_limits<double>::infinity( ) <<endl;
   cout << "The representation of infinity for type long double is: "
        << numeric_limits<long double>::infinity( ) <<endl;
}

Output

1
1
1
0
0
The representation of infinity for type float is: 1.#INF
The representation of infinity for type double is: 1.#INF
The representation of infinity for type long double is: 1.#INF

See Also

strstreambuf Class | numeric_limits Members

Show:
© 2014 Microsoft