What's the Difference Between `sizeof` a String Literal, a `const char* const`, and a `const char[]`?

Sizeof String Literal: Unraveling the Differences

Consider the following code snippet:

#include <iostream>
using namespace std;

int main()
{
    const char* const foo = "f";
    const char bar[] = "b";
    cout << "sizeof(string literal) = " << sizeof("f") << endl;
    cout << "sizeof(const char* const) = " << sizeof(foo) << endl;
    cout << "sizeof(const char[]) = " << sizeof(bar) << endl;
}

Executing this code reveals intriguing results:

sizeof(string literal) = 2
sizeof(const char* const) = 4
sizeof(const char[]) = 2

Understanding the Results

• sizeof("f"): This evaluates to 2, as it includes the character 'f' and the terminating null character '

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