C TOKENS

Each and every smallest individual units in c program is known as c tokens . C tokens are the bacis

Building blocks in c language which are constructed togather to write in a c program

C token are six types

1. Keywords
2. Constant
3. String
4. Special symbol
5. Identifiers
6. Operator 

Keywords

Keywords are predefined words used in programming that have special meaning to the compiler.keywords are cannot be used as an identifier 

List of keywords

Auto    break    case    char    const    continue  

  default    do    double    else    enum   extern    float    for    goto    if    int   long    register    return    short static   struct    signed   switch    sizeof    typedef    union    unsigned    void    volatile    while

Identifiers

Identifiers are the name of given variables function or structure etc. An identifier can be composed of letters