numeric_limits::max_exponent
Returns the maximum positive integral exponent that the floating-point type can represent as a finite value when a base of radix is raised to that power.
static const int max_exponent = 0;
Return Value
The maximum integral radix-based exponent representable by the type.
Remarks
The member function return is meaningful only for floating-point types. The max_exponent is the value FLT_MAX_EXP for type float.
Example
// numeric_limits_max_exponent.cpp
// compile with: /EHsc
#include <iostream>
#include <limits>
using namespace std;
int main( )
{
cout << "The maximum radix-based exponent for type float is: "
<< numeric_limits<float>::max_exponent
<< endl;
cout << "The maximum radix-based exponent for type double is: "
<< numeric_limits<double>::max_exponent
<< endl;
cout << "The maximum radix-based exponent for type long double is: "
<< numeric_limits<long double>::max_exponent
<< endl;
}
The maximum radix-based exponent for type float is: 128 The maximum radix-based exponent for type double is: 1024 The maximum radix-based exponent for type long double is: 1024
Requirements
Header: <limits>
Namespace: std