numeric_limits::tinyness_before
Tests whether a type can determine that a value is too small to represent as a normalized value before rounding it.
static const bool tinyness_before = false;
Return Value
true if the type can detect tiny values before rounding; false if it cannot.
Remarks
Types that can detect tinyness were included as an option with IEC 559 floating-point representations and its implementation can affect some results.
Example
// numeric_limits_tinyness_before.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>
using namespace std;
int main( )
{
cout << "Whether float types can detect tinyness before rounding: "
<< numeric_limits<float>::tinyness_before
<< endl;
cout << "Whether double types can detect tinyness before rounding: "
<< numeric_limits<double>::tinyness_before
<< endl;
cout << "Whether long int types can detect tinyness before rounding: "
<< numeric_limits<long int>::tinyness_before
<< endl;
cout << "Whether unsigned char types can detect tinyness before rounding: "
<< numeric_limits<unsigned char>::tinyness_before
<< endl;
}
Whether float types can detect tinyness before rounding: 1 Whether double types can detect tinyness before rounding: 1 Whether long int types can detect tinyness before rounding: 0 Whether unsigned char types can detect tinyness before rounding: 0
Requirements
Header: <limits>
Namespace: std