THIS SECTION SUMMARIZES THE C LANGUAGE in a format suitable for quick reference. It is not intended that this section be a complete definition of the language, but rather a more informal description of its features. You should thoroughly read the material in this section after you have completed the text. Doing so not only reinforces the material you have learned, but also provides you with a better global understanding of C.
This summary is based on the ANSI C99 (ISO/IEC 9899:1999) standard.
Table A.1 lists special two-character sequences (digraphs) that are equivalent to the listed single-character punctuators.
Table A.1. Digraph Characters