COMMENTS
Program comments are explanatory statements that you can include in the C++ code that you write and helps anyone reading its source code. All programming languages allow for some form of comments. C++ supports single-line and multi-line comments. All characters available inside any comment are ignored by C++ compiler.C++ comments start with /* and end with */. For example:
/* This is a comment */
/* C++ comments can also
* span multiple lines
*/
A comment can also start with //, extending to the end of the line. For example:
#include<iostream>
usingnamespace std;
main()
{ cout <<"Hello World";
// prints Hello World
return0; }
When the above code is compiled, it will ignore // prints Hello World and final executable will produce the following result:
HelloWorld
Within a /* and */ comment, // characters have no special meaning. Within a // comment, /* and */ have no special meaning. Thus, you can "nest" one kind of comment within the other kind. For example:
/* Comment out printing of Hello World:
cout << "Hello World";
// prints Hello World */
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