21 Jan C++ Comments
In C++, the Comments provide extra details about various aspects of a program. They are usually included at the start of a program to indicate its purpose, its author, and the date on which it was written. They also provide clarification about complicated statements in the program.
There are two types of comments used in C__. These are single-line comments and Multi line comments. Details about these are given as follows:
Single Line Comments in C++
These comments are only on a single line and cannot move beyond that. They are represented using a double slash (//). An example of single-line comments in C++ is:
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#include <iostream> using namespace std; int main () { // Declaring a variable x int x = 0; // The while loop until the value of x is less than 5 while( x < 5 ) { cout << "x = " << x << "\n"; x++; } return 0; } |
Output
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x = 0 x = 1 x = 2 x = 3 x = 4 |
Multi-Line Comments in C++
The multi-line comments are extended over multiple lines. They are represented using /* i.e slash asterisk (/*……….*/). Multi-line comments cannot be nested.
An example of multi-line comments in C is:
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#include <iostream> using namespace std; int main () { int myVar = 25; if (myVar>10) cout<<"Value "<<myVar<<" is more than 10"; return 0; } |
Output
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Value 25 is more than 10 |
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