Doku Doodles

Template Exports for DLL

snorri — 2013-05-06T16:26:53+09:00

Links & Resources * Example The template class #ifndef SIGSLOTS_HPP_ #define SIGSLOTS_HPP_ #include template class Foo { public: Foo() {} static std::string& bar() { static std::string foobar = "foobar"; return foobar; } //static T value; }; #endif /* SIGSLOTS_HPP_ */

Topics

snorri — 2013-05-06T16:22:28+09:00

* * Ansi Codes - ansi codes to be used in escape sequences. * Auto Pointers - autopointer use cases. * Bitwise - tips and problems with bitwise operations. * Casting - use the new cpp type casts. * Character Arrays - character array tricks. * Constructors - some curious things about constructors. * Containers - notes about containers. * Copy Constructor - when it is called & how to overload. * Const - use of const in c++ code. * Formatting Cout - different formatt…

Git Config

snorri — 2013-05-05T21:51:05+09:00

These are my github configurations: git config --global user.name "Daniel Stonier" git config --global user.email "d.stonier@gmail.com" To see what's current: git config --list To set up aliases: git config --global alias.co checkout To display everything in full colour!

NoseTests

snorri — 2013-05-05T10:24:00+09:00

Links & References * Installation > sudo apt-get install python-nosetests python-coverage Ros Nosetests * In the subfolder. * Each test should start with the prefix (not essential, but differentiates test from helper scripts). * Execute them by running in the build folder or in the test folder. * A to configure nose testing.

Remove From List While Iterating

snorri — 2013-04-30T23:01:23+09:00

Links & Resources * Code The following deletes in place, and does it safely. somelist[:] = [x for x in somelist if not determine(x)]

Python

snorri — 2013-04-30T22:59:49+09:00

Links & Resources * - the official python tutorial. * - api documentation for the core modules. * - api documentation for string regexp'ing. * - how to organise your script/module/package. * - tips on how to write a main from the lead python developer.

Parsing Text Files

snorri — 2013-04-30T21:11:10+09:00

Links & Resources * - example code snippets showing a variety of ways to replace words in a file. Matching for line in fileinput.input(rosconfig_file,mode='r'): if (line.find("set(ROS_BUILD_TYPE Debug") != -1): sys.stdout.write("Debug\n") else (line.find("set(ROS_BUILD_TYPE Release") != -1): sys.stdout.write("Release\n")

Strings

snorri — 2013-04-30T17:45:08+09:00

* - the python manual page string methods. Equal if word == "banana": print "Yes, we have a banana!" if word < "banana": print "Your word," + word + ", comes before banana." elif word > "banana": print "Your word," + word + ", comes after banana." else: print "We have a banana!"

Processes

snorri — 2013-04-12T15:19:02+09:00

Links & Resources * * os.system For a simple call to a process: import os os.system(mplayer rango.avi) Subprocess Module * Running and hiding stdout: devnull = open('/dev/null', 'w') process = subprocess.Popen(shlex.split(command_line), stdout=devnull, stderr=devnull) retcode = process.wait()

Processes

snorri — 2013-01-01T23:33:33+09:00

Processes

snorri — 2012-03-05T22:54:20+09:00