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C Character Constants

  • Article

A “character constant” is formed by enclosing a single character from the representable character set within single quotation marks (' '). Character constants are used to represent characters in the execution character set.

Syntax

  • character-constant :
    'c-char-sequence'
    L'c-char-sequence'
  • c-char-sequence :
    c-char
    c-char-sequence c-char
  • c-char :
    Any member of the source character set except the single quotation mark ('), backslash (\), or newline character
    escape-sequence
  • escape-sequence :
    simple-escape-sequence
    octal-escape-sequence
    hexadecimal-escape-sequence
  • simple-escape-sequence : one of
    \a \b \f \n \r \t \v
    \' \" \\ \?
  • octal-escape-sequence :
    \ octal-digit
    \ octal-digit octal-digit
    \ octal-digit octal-digit octal-digit
  • hexadecimal-escape-sequence :
    \x hexadecimal-digit
    hexadecimal-escape-sequence hexadecimal-digit