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Explain C tokens in C Language
Tokens are generally smallest, indivisible units in a C program with different meanings.
Types of Tokens
The various types of tokens in C are as follows −
Identifiers − This refers to the name of the functions, variables, arrays, structures, etc.
Operators − These are the symbols that tells to the C compiler to perform some logical, mathematical, or relational operations.
Special Characters − All characters except alphabets and digits are called special characters.
Constants − Some fixed values that cannot be changed during the program execution are known as constant terms
Keywords/Reserved Names − These are Predefined words with some special meanings that cannot be used as variable names.
Example
Following is the C program for usage of tokens −
#include<stdio.h>
int main(){
int p, q, result;
p = 2, q= 3;
result = p + q;
printf ("result = %d
", result);
}Here,
- main is identifier.
- {,}, (,) are delimiter.
- int is a keyword.
- p,q, result are identifiers.
- main, {, }, (, ), int, p, q, result all together called as tokens.
Updated on: 11-Mar-2021
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