std::numeric_limits::digits in C++ with Example
Last Updated :
12 Jun, 2020
The std::numeric_limits::digits function in C++ STL is present in the <limits> header file. The std::numeric_limits::digits function is used to find the number of radix digits that the data type can represent without loss of precision.
Header File:
#include<limits>
Template:
static const int digits;
static constexpr int digits;
Syntax:
std::numeric_limits<T>::digits
Parameter: The function std::numeric_limits<T>::digits does not accept any parameter.
Return Value: The function std::numeric_limits<T>::digits returns the number of radix digits that the type can represent without loss of precision.
Below is the program to demonstrate std::numeric_limits<T>::digits in C++:
Program:
#include <bits/stdc++.h>
#include <limits>
using namespace std;
int main()
{
cout << "For int: "
<< numeric_limits< int >::digits
<< endl;
cout << "For float: "
<< numeric_limits< float >::digits
<< endl;
cout << "For double: "
<< numeric_limits< double >::digits
<< endl;
cout << "For long double: "
<< numeric_limits< long double >::digits
<< endl;
return 0;
}
|
Output:
For int: 31
For float: 24
For double: 53
For long double: 64
Reference: https://en.cppreference.com/w/cpp/types/numeric_limits/digits
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