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Character Set

Posted By: Hollie Hughes     Category: C Programming     Views: 5589

This article explains about character set in c programming.

Character Set

  • The set of characters used to form words numbers and expressions is the char set
  • It is of four categories in C
    • Letters
    • Digits
    • Special characters
    • White spaces

Complete List of Char Set

  • Letters : Uppercase A..Z and lowercase a..z
  • Digits : all decimal digits 0..9
  • Special characters :
  •  , ; . : ? ‘(apostrophe)  “(quotation) ! | / \ ~ (tilde) _(underscore) – (minus)  $ % # & ^ (caret) * + < > ( ) [ ] { } 
  • White spaces : Blank spaces, Horizontal Tabs, Carriage return, New Line, Form feed

Trigraph Characters

  • Many non English keyboards do not support all the characters mentioned earlier
  • ANSI C introduces the concept of trigraph characters to provide a way to enter them
  • Each trigraph sequence consists of three characters, first two being question marks
  • So chars not available on KB may be entered in the program

ANSI C Trigraph Sequences

 Trigraph Sequence

 Translation

 ??=

# 

 ??(

[ 

 ??)

] 

 ??<

{

 ??>

} 

 ??!

| 

 ??/

\ 

 ??'

^ 

 ??-

~ 


  
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Hollie Hughes
Hollie Hughes author of Character Set is from London, United Kingdom.
 
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