♠ Posted by Unknown in C'Language at 09:57
Trigraph Characters:
Many
non-English keyboards do not support all the characters mentioned in the
following table. ANSI C introduces the
concept of “trigraph” sequences to provide a way to enter certain characters
that are not available on some keyboards.
Each trigraph sequence consists of three characters ( two question marks
followed by another character).
Back Slash characters (Escape Sequences).
C
supports some special backslash character constants that are used in output
functions. A list of such backslash
character constants is given in table.
Note that each one of them represents one character, although they
consist of two characters. These
character combinations are known as escape sequences.
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