What is C token?

This C program is a series of instructions, each instruction is a collection of individual units.

Each small individual unit in a C program is often called a token, and each instruction in a C program is a collection of tokens.

Tokens are used to build C programs, they are also known as the basic building blocks of C programs.

In a C program, tokens contain the following:

• Keywords
• Identifiers
• Operators
• Special symbols
• Constant
• String
• Data value

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

Example

The following is a C program for printing uppercase alphabetic characters −

Demonstration

#include<stdio.h>
#include<conio.h>
int main(){
   int i;
   printf("ASCII ==> Character</p><p>");
   for(i = 65; i <= 90; i++)
      printf("%d ==> %c</p><p>", i, i);
   return 0;
}

Output

When the above program is executed, it produces the following results −

ASCII ==> alphabet Character
65 ==> A
66 ==> B
67 ==> C
68 ==> D
69 ==> E
70 ==> F
71 ==> G
72 ==> H
73 ==> I
74 ==> J
75 ==> K
76 ==> L
77 ==> M
78 ==> N
79 ==> O
80 ==> P
81 ==> Q
82 ==> R
83 ==> S
84 ==> T
85 ==> U
86 ==> V
87 ==> W
88 ==> X
89 ==> Y
90 ==> Z

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