numeric_limits::round_error
Returns the maximum rounding error for the type.
static Type round_error( ) throw( );
Return Value
The maximum rounding error for the type.
Example
// numeric_limits_round_error.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>
using namespace std;
int main( )
{
cout << "The maximum rounding error for type float is: "
<< numeric_limits<float>::round_error( )
<< endl;
cout << "The maximum rounding error for type int is: "
<< numeric_limits<int>::round_error( )
<< endl;
cout << "The maximum rounding error for type long double is: "
<< numeric_limits<long double>::round_error( )
<< endl;
}
The maximum rounding error for type float is: 0.5 The maximum rounding error for type int is: 0 The maximum rounding error for type long double is: 0.5
Requirements
Header: <limits>
Namespace: std