Type difference of character literals in C vs C++

In C++ the size of the character constants is char. In C the type of character constant is integer (int). So in C the sizeof(‘a’) is 4 for 32bit architecture, and CHAR_BIT is 8. But the sizeof(char) is one byte for both C and C++.

Example

#include<stdio.h> main() {    printf("%d", sizeof('a')); }

Output

4

Example

#include<iostream> using namespace std; main(){    cout << sizeof('a'); }

Output

1

In both cases we are doing the same. But in C sizeof(‘a’) returns 4 as it is treated as integer. But in C++ it is returning 1. It is treated as character.