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| == C++ move semantics/perfect forwarding == * [[http://thbecker.net/articles/rvalue_references/section_01.html|C++ Rvalue References Explained]] * [[http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2027.html#Move_Semantics|Rvalue Reference Quick Look]] * [[http://en.cppreference.com/w/cpp/utility/move|std::move - cppreference.com]] * [[https://www.ibm.com/developerworks/community/blogs/5894415f-be62-4bc0-81c5-3956e82276f3/entry/RVO_V_S_std_move?lang=en|RVO V.S. std::move (C/C++ Cafe)]] * [[http://www.cprogramming.com/c++11/rvalue-references-and-move-semantics-in-c++11.html|Rvalue References and Move Semantics in C++11 - Cprogramming.com]] == C++ and Python == [[https://github.com/pybind/pybind11|pybind/pybind11: Seamless operability between C++11 and Python]] [[https://github.com/tbenthompson/cppimport|tbenthompson/cppimport: Import C++ files directly from Python!]] == C stuff == Not C++, but this page is as good a place to put this as any. * [[http://blog.robertelder.org/7-weird-old-things-about-the-c-preprocessor/|7 Scandalous Weird Old Things About The C Preprocessor]] == STL == Wrap an existing C-style pointer to an array with std::vector: http://stackoverflow.com/a/15203325/14878; modifies std::vector internals to work. == C++11 == === Smart pointers === * [[https://arne-mertz.de/2015/12/shared_ptr-versus-unique_ptr-in-factory-functions/|shared_ptr Versus unique_ptr in Factory Functions]] * [[https://softwareengineering.stackexchange.com/questions/274801/raw-weak-ptr-unique-ptr-shared-ptr-etc-how-to-choose-them-wisely|c++ - raw, weak_ptr, unique_ptr, shared_ptr etc... How to choose them wisely? - Software Engineering Stack Exchange]] == Stuff == * [[https://github.com/fffaraz/awesome-cpp|awesome-cpp]]: A curated list of awesome C/C++ frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. * [[https://www.conan.io/|Conan C/C++ Package Manager]] * [[https://github.com/hughperkins/Jinja2CppLight|hughperkins/Jinja2CppLight: (very) lightweight version of Jinja2 for C++]] |
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== Videos == * [[https://www.youtube.com/watch?v=3MB2iiCkGxg|Curiously recurring C++ bugs at Facebook]] * Use `-fsanitize-address` and `-fsanitize-address-use-after-scope` * Use `-Wshadow`, and deal with noisy warnings |
Contents
See also:
C++ style guides
Qt's Coding Style and Coding Conventions
isocpp/CppCoreGuidelines: The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++, from Bjarne Stroustrup and Herb Sutter. More easily readable version
`const` correctness
Formatting
ClangFormat: auto-formats C++ code
Git hook running clang-format. Don't use this!
Static analysis tools
Clang-Tidy: C/C++ linting tool, à la Google's cpplint.
clang-tidy -checks='*' *.cpp -- -std=c++11
Clang Static Analyzer: sets CC and CXX to use alternate compiler to do analysis
# Highest severity warnings only (i.e. memory leaks, etc)
cppcheck --enable=all *.cpp
# Everything except style-related linting
cppcheck --enable=warning,performance,portability,information,missingInclude \
--std=c++11 --library=std.cfg --verbose --quiet \
*.cpp
Overview articles:
Stuff I never remember
Unnecessary copies w/ `auto`
Beware unncessary copies w/ auto; default semantics is to make a copy.
// Typically there's no reason to copy.
for (const auto &Val : Container) { observe(Val); }
for (auto &Val : Container) { Val.change(); }
// Remove the reference if you really want a new copy.
for (auto Val : Container) { Val.change(); saveSomewhere(Val); }
// Copy pointers, but make it clear that they're pointers.
for (const auto *Ptr : Container) { observe(*Ptr); }
for (auto *Ptr : Container) { Ptr->change(); }
Don't evaluate `end()` in loops
// BAD
BasicBlock *BB = ...
for (BasicBlock::iterator I = BB->begin(); I != BB->end(); ++I)
// ... use I ...
// GOOD (unless you are mutating BB; use the above loop if you are, and document you are doing so)
BasicBlock *BB = ...
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I)
// ... use I ...
Use `const` iterators if not mutating a structure
Expanding on the above:
BasicBlock *BB = ...
for (BasicBlock::const_iterator I = BB->cbegin(), E = BB->cend(); I != E; ++I)
// ... use I ...
Dynamic loading of DLL/DSOs
Example of loading OpenCL dynamically. Uses a Python parser script to create special header file with defines that map both functions and does appropriate type conversion. https://github.com/opencv/opencv/pull/1542/files
Boost.DLL: Boost library for easily loading DLLs (e.g. for plugins). Cross platform, but requires runtime libraryes boost_system (integrated into C++11?) and boost_filesystem (integrated into C++17).
https://github.com/knusbaum/CPP-Dynamic-Class-Loading: Class for dynamically loading classes (Linux only)
