C/C++ - Revision history

Davepc at 17:47, 9 April 2013

2013-04-09T17:47:34Z

Davepc: /* Tips & Tricks */

2012-11-01T13:12:30Z

‎Tips & Tricks

Davepc: /* Tips & Tricks */

2012-11-01T13:10:27Z

‎Tips & Tricks

Root at 12:41, 18 March 2011

2011-03-18T12:41:47Z

Root: /* General */

2011-02-01T15:57:34Z

‎General

Root at 17:13, 14 January 2011

2011-01-14T17:13:20Z

Root: /* General */

2011-01-14T16:57:54Z

‎General

Root: /* General */

2010-11-19T12:26:08Z

‎General

Root: /* General */

2010-11-18T13:47:19Z

‎General

Root: /* Coding */

2010-05-20T09:51:48Z

‎Coding

← Older revision		Revision as of 17:47, 9 April 2013
Line 44:		Line 44:
	or use the Unix command		or use the Unix command
	$ indent		$ indent
		+
		+	== Color GCC ==
		+	Colours output of GCC so you can see errors and warnings.
		+	sudo apt-get install colorgcc
		+	ln -s /usr/bin/colorgcc ~/bin/gcc
		+	*Make sure ~/bin is in path _before_ gcc. (Add ~/bin to path in ~/.profile)

← Older revision		Revision as of 13:12, 1 November 2012
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	*To indent all .c and .h files with vim use the following ([http://stackoverflow.com/questions/3218528/indenting-in-vim-with-all-the-files-in-folder explained here]):		*To indent all .c and .h files with vim use the following ([http://stackoverflow.com/questions/3218528/indenting-in-vim-with-all-the-files-in-folder explained here]):
	:args .//.[ch] \| argdo execute "normal gg=G" \| update		:args .//.[ch] \| argdo execute "normal gg=G" \| update
		+	or use the Unix command
		+	$ indent

@@ Line 17: / Line 17: @@
 * [http://www.gnu.org/software/hello/manual/automake/Libtool-Convenience-Libraries.html Force C++ linking]
-== Tips & Tricks ==
+== Tips &amp; Tricks  ==
 * [http://www.gnu.org/s/libc/manual/html_node/Date-and-Time.html#Date-and-Time Timing in C]
-* Don't use non-standard functions, like [http://en.wikipedia.org/wiki/Itoa itoa]
+*[http://www.gnu.org/s/libc/manual/html_node/Date-and-Time.html#Date-and-Time Timing in C]
-* [http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html Handling program arguments] (avoid <code>argp</code> since it is not supported on many platforms)
+*Don't use non-standard functions, like [http://en.wikipedia.org/wiki/Itoa itoa]
-* [http://en.wikipedia.org/wiki/Dynamic_loading Dynamic loading of shared libraries]
+*[http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html Handling program arguments] (avoid <code>argp</code> since it is not supported on many platforms)
-* Avoid [http://en.wikipedia.org/wiki/Variable-length_array variable-length arrays]. First, GCC allocates them on the stack. Second, the status of this feature in GCC is BROKEN. Therefore, never do this:
+*[http://en.wikipedia.org/wiki/Dynamic_loading Dynamic loading of shared libraries]
 <source lang="C">
    int size;
    MPI_Comm_size(MPI_COMM_WORLD, &size);
    char names[size][MPI_MAX_PROCESSOR_NAME];
 </source>
 * Implement delays in the execution of the program with help of [http://linux.die.net/man/2/nanosleep nanosleep]. Compared to sleep and usleep, nanosleep has the advantage of not affecting any signals, it is standardized by POSIX, it provides higher timing resolution, and it allows to continue a sleep that has been interrupted by a signal more easily.

@@ Line 17: / Line 17: @@
 * [http://www.gnu.org/software/hello/manual/automake/Libtool-Convenience-Libraries.html Force C++ linking]
-== General ==
+== Tips & Tricks ==
 * Don't use non-standard functions, like [http://en.wikipedia.org/wiki/Itoa itoa]
 * [http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html Handling program arguments] (avoid <code>argp</code> since it is not supported on many platforms)

@@ Line 23: / Line 23: @@
 * Avoid [http://en.wikipedia.org/wiki/Variable-length_array variable-length arrays]. First, GCC allocates them on the stack. Second, the status of this feature in GCC is BROKEN. Therefore, never do this:
 <source lang="C">
-int size;
+  int size;
-MPI_Comm_size(MPI_COMM_WORLD, &size);
+  MPI_Comm_size(MPI_COMM_WORLD, &size);
-char names[size][MPI_MAX_PROCESSOR_NAME];
+  char names[size][MPI_MAX_PROCESSOR_NAME];
 </source>

← Older revision		Revision as of 13:47, 18 November 2010
Line 21:		Line 21:
	* [http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html Handling program arguments] (avoid <code>argp</code> since it is not supported on many platforms)		* [http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html Handling program arguments] (avoid <code>argp</code> since it is not supported on many platforms)
	* [http://en.wikipedia.org/wiki/Dynamic_loading Dynamic loading of shared libraries]		* [http://en.wikipedia.org/wiki/Dynamic_loading Dynamic loading of shared libraries]
		+	* Avoid [http://en.wikipedia.org/wiki/Variable-length_array variable-length arrays]. First, GCC allocates them on the stack. Second, the status of this feature in GCC is BROKEN. Third, never do this:
		+	<source lang="C">
		+	int size;
		+	MPI_Comm_size(MPI_COMM_WORLD, &size);
		+	char names[size][MPI_MAX_PROCESSOR_NAME];
		+	</source>

@@ Line 1: / Line 1: @@
 == Coding ==
-* C++ programming style is preferrable. For example, in variable declarations, pointers and references should have their reference symbol next to the type rather than to the name. Variables should be initialized where they are declared, and should be declared where they are used.
+* C++ programming style is preferrable. For example, in variable declarations, pointers and references should have their reference symbol next to the type rather than to the name. Variables should be initialized where they are declared, and should be declared where they are used. For more details, see [http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml Google C++ Style Guide]
 * [http://en.wikipedia.org/wiki/Indent_style#Variant:_1TBS One-true-brace ident style]
 * [http://en.wikipedia.org/wiki/Pragma_once Coding header files]