Comments on: warning: unknown escape sequence: ‘\W’ [enabled by default] and error: empty character constant https://www.emblogic.com/blog/02/warning-unknown-escape-sequence-w-enabled-by-default-and-error-empty-character-constant/ Embedded System and ARM Training Mon, 07 Oct 2013 04:00:03 +0000 hourly 1 http://wordpress.org/?v=3.9.1 By: sheetal sharma https://www.emblogic.com/blog/02/warning-unknown-escape-sequence-w-enabled-by-default-and-error-empty-character-constant/#comment-611 Sun, 05 Feb 2012 07:57:47 +0000 http://emblogic.org/blog/?p=1842#comment-611 when we put \ before a character it is count as an escape character by compiler.
\W is examined as escape character in above program but there is no escape character ‘\W’.

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