numeric_limits::denorm_min

Returns the smallest nonzero denormalized value.

static Type denorm_min( ) throw( );

Return Value

The smallest nonzero denormalized value.

Remarks

long double is the same as double for the C++ compiler.

The function returns the minimum value for the type, which is the same as min if has_denorm is not equal to denorm_present.

Example

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

using namespace std;

int main( )
{
   cout << "The smallest nonzero denormalized value\n for float "
        << "objects is: " << numeric_limits<float>::denorm_min( ) 
        << endl;
   cout << "The smallest nonzero denormalized value\n for double "
        << "objects is: " << numeric_limits<double>::denorm_min( ) 
        << endl;
   cout << "The smallest nonzero denormalized value\n for long double "
        << "objects is: " << numeric_limits<long double>::denorm_min( ) 
        << endl;

   // A smaller value will round to zero
   cout << numeric_limits<float>::denorm_min( )/2 <<endl;
   cout << numeric_limits<double>::denorm_min( )/2 <<endl;
   cout << numeric_limits<long double>::denorm_min( )/2 <<endl;
}

The smallest nonzero denormalized value
 for float objects is: 1.4013e-045
The smallest nonzero denormalized value
 for double objects is: 4.94066e-324
The smallest nonzero denormalized value
 for long double objects is: 4.94066e-324
0
0
0

Requirements

Header: <limits>

Namespace: std

See Also

Reference

strstreambuf Class