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authorPerry Hung <iperry@gmail.com>2011-01-24 23:23:29 -0500
committerPerry Hung <iperry@gmail.com>2011-01-24 23:23:29 -0500
commitc48689d34809943a5907884bd287cea9ae275352 (patch)
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-.. _arduino-comments:
-
-Comments
-========
-
-Comments are lines in the program that are used to inform yourself
-or others about the way the program works. They are ignored by the
-compiler, and not exported to the processor, so they don't take up
-any space on the Atmega chip.
-
-
-
-Comments only purpose are to help you understand (or remember) how
-your program works or to inform others how your program works.
-There are two different ways of marking a line as a comment:
-
-
-
-Example
--------
-
-::
-
- x = 5; // This is a single line comment. Anything after the slashes is a comment
- // to the end of the line
-
- /* this is multiline comment - use it to comment out whole blocks of code
-
- if (gwb == 0){ // single line comment is OK inside a multiline comment
- x = 3; /* but not another multiline comment - this is invalid */
- }
- // don't forget the "closing" comment - they have to be balanced!
- */
-
-
-
-**Tip**
-When experimenting with code, "commenting out" parts of your
-program is a convenient way to remove lines that may be buggy. This
-leaves the lines in the code, but turns them into comments, so the
-compiler just ignores them. This can be especially useful when
-trying to locate a problem, or when a program refuses to compile
-and the compiler error is cryptic or unhelpful.
-
-