C Tokens

Every C program is a collection of instructions and every instruction is a collection of some individual units. Every smallest individual unit of a c program is called token. Every instruction in a c program is a collection of tokens. Tokens are used to construct c programs and they are said to the basic building blocks of a c program.

In a c program tokens may contain the following...

1. Keywords
2. Identifiers
3. Operators
4. Special Symbols
5. Constants
6. Strings
7. Data values

In a C program, a collection of all the keywords, identifiers, operators, special symbols, constants, strings, and data values are called tokens.

Consider the following C program...

C program to print all the characters of C character Set

#include<stdio.h>
#include<conio.h>
int main() {
 int i;
        clrscr();
 printf("ASCII  ==>  Character\n");
 for(i = -128; i <= 127; i++)
    printf("%d    ==>     %c\n", i, i);
        getch();
 return 0;
}

In the above program there are 22 tokens.