C++ Comments C-PLUS-PLUS
- C++ Introduction
- C++ Syntax
- C++ Output (cout <<)
- C++ Comments
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- C++ User Input
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- C++ Function Overloading
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- Destructors in C++
- C++ Access Specifiers
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- C++ Inheritance
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- C++ Files
- C++ Exception Handling
C++ Comments
C++ Comments
Comments can be used to explain C++ code, and to make it more readable. It can also be used to prevent execution when testing an alternative code. Comments can be singled-lined or multi-lined.
Single-line comments start with two forward slashes (//).
Any text which starts with // and the end of the line is ignored by the compiler (will not be executed).
Example
// This is a comment
cout << "Hello World!";OR
cout << "Hello World!"; // This is a comment
Output:
Hello World!
C++ Multi-line Comments
Multi-line comments start with /* and ends with */.
Any text between /* and */ will be ignored by the compiler (will not be executed).
Example
#include <iostream>
using namespace std;int main() {
/* The code below will print the words Hello World!
to the screen, and it is amazing */
cout << "Hello World!";
return 0;
}
Output:
Hello World!
It is up to you which you want to use. Normally, we use // for short comments, and /* */ for longer.
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