Integer literal in C/C++ (Prefixes and Suffixes)

In this tutorial, we will be discussing a program to understand integer literal in C/C++ (Prefixes and suffixes).

Integer literals are literals for integer values directly represented in the source code. Further, they are of two types −

• Prefixes − Prefixes denotes the base of the value. For example, 0x10 indicates hexadecimal value with 0x.

• Suffixes − Suffixes denotes the type of the value. For example, 8465484156155LL denotes a long long integer.

Example

 Live Demo

#include <iostream>
using namespace std;
int main(){
   //prefixes
   cout << 213 << '\n'
   << 0213 << '\n'
   << 0x213A << '\n'
   << 0b101 << '\n'
   //suffixes
   << 1234567890123456789LL << '\n'
   << 12345678901234567890ull << '\n'
   << 12345678901234567890u;
   return 0;
}

Output

213
139
8506
5
1234567890123456789
12345678901234567890
12345678901234567890