Digit Separator in C++14
Last Updated :
21 Jan, 2021
In this article, we will discuss the use of a digit separator in C++. Sometimes, it becomes difficult to read numbers that contain many digits. For example, 1000 is readable but what if more zeros are added to it, let’s say 1000000, now it becomes a little difficult to read, and what will happen if more zeros are added to it. In real life, commas (, ) are added to the number. For Example: 10, 00, 000. Now it is easy to read, that is ten lakhs.
Now the question arises that C++ doesn’t accept such separators (comma) so how to deal with big numbers. To deal with it, C++14 has introduced a feature and its name is Digit Separator and denoted by a simple quotation mark (‘). This can make it easier for users to read large numbers.
Program 1:
Below is the implementation to show that single quote marks are ignored when determining their value:
C++14
#include <iostream>
using namespace std;
int main()
{
long long int a = 10'00'000;
cout << a;
return 0;
}
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Program 2:
Below is the program to show that Single quote marks are just for users. Using them in any position does not affect the compiler.
C++14
#include <iostream>
using namespace std;
int main()
{
long long int a = 1'23'456;
long long int b = 12'34'56;
long long int c = 123'456;
cout << "a:" << a << endl;
cout << "b:" << b << endl;
cout << "c:" << c << endl;
return 0;
}
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Output
a:123456
b:123456
c:123456
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