numeric_limits::signaling_NaN
Returns the representation of a signaling not a number (NAN) for the type.
static Type signaling_NaN( ) throw( );
Return Value
The representation of a signaling NAN for the type.
Remarks
The return value is meaningful only if has_signaling_NaN is true.
Example
// numeric_limits_signaling_nan.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>
using namespace std;
int main( )
{
cout << "The signaling NaN for type float is: "
<< numeric_limits<float>::signaling_NaN( )
<< endl;
cout << "The signaling NaN for type int is: "
<< numeric_limits<int>::signaling_NaN( )
<< endl;
cout << "The signaling NaN for type long double is: "
<< numeric_limits<long double>::signaling_NaN( )
<< endl;
}
Sample Output
The following is output on x86.
The signaling NaN for type float is: 1.#QNAN
The signaling NaN for type int is: 0
The signaling NaN for type long double is: 1.#QNAN
Requirements
Header: <limits>
Namespace: std