# # and ## Operators in C ?

CServer Side ProgrammingProgramming

In this section we will see what are the Stringize operator(#) and Token Pasting operator(##) in C. The Stringize operator is a preprocessor operator. It sends commands to compiler to convert a token into string. We use this operator at the macro definition.

Using stringize operator we can convert some text into string without using any quotes.

## Example

Live Demo

#include<stdio.h>
#define STR_PRINT(x) #x
main() {
printf(STR_PRINT(This is a string without double quotes));
}

## Output

This is a string without double quotes

The Token Pasting operator is a preprocessor operator. It sends commands to compiler to add or concatenate two tokens into one string. We use this operator at the macro definition.

## Example

Live Demo

#include<stdio.h>
#define STR_CONCAT(x, y) x##y
main() {
printf("%d", STR_CONCAT(20, 50));
}

## Output

2050
Published on 24-Jul-2019 11:50:18