138 lines
6.7 KiB
Markdown
138 lines
6.7 KiB
Markdown
# C++ utilities
|
||
Useful C++ classes and routines such as argument parser, IO and conversion utilities.
|
||
|
||
## Features
|
||
The library utilizes:
|
||
|
||
* parsing command-line arguments and providing Bash completion
|
||
- supports nested arguments
|
||
- supports operations (no `--` or `-` prefix, eg. `git status`)
|
||
- can check for invalid or uncombinable arguments
|
||
- can print help automatically
|
||
- provides automatic Bash completion for argument names
|
||
- allows customizing Bash completion for argument values
|
||
* dealing with dates and times
|
||
* conversion of primitive data types to byte-buffers and vice versa (litte-endian and big-endian)
|
||
* common string conversions/operations, eg.
|
||
- character set conversions via iconv
|
||
- split, join, find and replace
|
||
- conversion from number to string and vice verca
|
||
- encoding/decoding base-64
|
||
- building string without multiple heap allocations ("string builder")
|
||
* IO
|
||
- reading/writing primitive data types of various sizes (little-endian and big-endian)
|
||
- reading/writing terminated strings and size-prefixed strings
|
||
- reading/writing INI files
|
||
- reading bitwise
|
||
- writing formatted output using ANSI escape sequences
|
||
* using SFINAE by providing additional traits, eg. for checking whether a type is iteratable
|
||
* testing with *CppUnit*
|
||
- finding testfiles and make working copies of testfiles
|
||
- assert standard output
|
||
- various helper
|
||
* building with CMake by providing some modules and templates
|
||
|
||
Besides, the library provides a few useful algorithms and data structures:
|
||
|
||
* min(), max() for any number of arguments
|
||
* digitsum(), factorial(), powerModulo(), inverseModulo(), orderModulo()
|
||
* Damerau–Levenshtein distance
|
||
* *N*-dimensional array
|
||
|
||
## Build instructions
|
||
### Requirements
|
||
#### Build-only dependencies
|
||
* C++ compiler supporting C++14, tested with
|
||
- clang++ to compile for GNU/Linux and MacOS X
|
||
- g++ to compile for GNU/Linux and Windows
|
||
* CMake (at least 3.3.0)
|
||
* cppunit for unit tests (optional)
|
||
* Doxygen for API documentation (optional)
|
||
* Graphviz for diagrams in the API documentation (optional)
|
||
* clang-format for tidying (optional)
|
||
* llvm-profdata, llvm-cov and cppunit for source-based code coverage analysis (optional)
|
||
|
||
#### Runtime dependencies
|
||
* The c++utilities library itself only needs
|
||
* C++ standard library supporting C++14, tested with
|
||
- libstdc++ under GNU/Linux, Windows and MacOS X
|
||
- libc++ under GNU/Linux
|
||
* iconv (might be part of glibc or provided as extra library)
|
||
* For dependencies of my other projects check the README.md of these projects.
|
||
|
||
### How to build
|
||
Just run:
|
||
```
|
||
cd "path/to/build/directory"
|
||
cmake -DCMAKE_BUILD_TYPE=Release \
|
||
-DCMAKE_INSTALL_PREFIX="/final/install/location" \
|
||
"path/to/projectdirectory"
|
||
make tidy # format source files (optional, must be enabled via CLANG_FORMAT_ENABLED)
|
||
make
|
||
make check # build and run tests (optional)
|
||
make coverage # build and run tests measuring test coverage (optional, must be enabled via CLANG_SOURCE_BASED_COVERAGE_ENABLED)
|
||
make apidoc # build API documentation (optional)
|
||
make DESTDIR="/temporary/install/location" install
|
||
```
|
||
|
||
#### General notes
|
||
* The make option ```-j``` can be used for concurrent compilation.
|
||
* ```LIB_SUFFIX```, ```LIB_SUFFIX_32``` and ```LIB_SUFFIX_64``` can be set to
|
||
specify a suffix for the library directory, eg. lib*64* or lib*32*. The 32/64 variants are only used when building for 32/64-bit architecture.
|
||
* By default the build system will *build* shared libs. To *build* also static libraries, set `ENABLE_STATIC_LIBS=ON`. To disable building shared libs
|
||
set `DISABLE_SHARED_LIBS=ON`.
|
||
* By default the build system will prefer *linking against* shared libraries. To force *linking against* static libraries set `STATIC_LINKAGE=ON`.
|
||
However, this will only affect applications. To force linking statically when building shared libraries set `STATIC_LIBRARY_LINKAGE=ON`.
|
||
* For more detailed documentation, see the documentation about build variables (in
|
||
[directory doc](https://github.com/Martchus/cpp-utilities/blob/master/doc/buildvariables.md) and
|
||
in Doxygen version accessible via "Related Pages").
|
||
* The repository [PKGBUILDs](https://github.com/Martchus/PKGBUILDs) contains build scripts for GNU/Linux, Windows and MacOS X in form
|
||
of Arch Linux packages. These scripts can be used as an example also when building under another platform.
|
||
|
||
#### Building for Windows
|
||
* Building for Windows with GCC as cross compiler and mingw-w64 can be simplified by using a small
|
||
[Cmake wrapper and a custom toolchain file](https://aur.archlinux.org/cgit/aur.git/tree/mingw-cmake.sh?h=mingw-w64-cmake):
|
||
```
|
||
${_arch}-cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="/final/install/location" "path/to/source/directory"
|
||
make DESTDIR="/temporary/install/location" install-mingw-w64-strip
|
||
```
|
||
|
||
* To create the \*.ico file for the application icon ffmpeg/avconv is required.
|
||
* The target ```install-mingw-w64-strip``` can be used as in the example above to only install files
|
||
suitable for creating a cross-compiler package and additionally strip the binaries.
|
||
|
||
#### Building for MacOS X
|
||
* Building for MacOS X is possible using [osxcross](https://github.com/tpoechtrager/osxcross).
|
||
* Here is a Homebrew formula to build Tag Editor (without GUI): https://gist.github.com/rakkesh/0b13b8fca5dd1d57d98537ef1dd2e0dd
|
||
|
||
#### Development builds
|
||
During development I find it useful to build all required projects (for instace c++utilities, qtutilities, tagparser and tageditor) as one big project.
|
||
|
||
This can be easily achieved by using CMake's ```add_subdirectory()``` function. For project files
|
||
see the repository [subdirs](https://github.com/Martchus/subdirs). For an example, see
|
||
[build instructions for Syncthing Tray](https://github.com/Martchus/syncthingtray#building-this-straight).
|
||
|
||
For a debug build, just use ```-DCMAKE_BUILD_TYPE=Debug```.
|
||
|
||
#### Arch Linux package
|
||
The repository [PKGBUILDs](https://github.com/Martchus/PKGBUILDs) contains files
|
||
for building Arch Linux packages.
|
||
|
||
PKGBUILD files to cross compile for Windows using mingw-w64 and for MacOS X using osxcross are also included.
|
||
|
||
#### RPM packages for openSUSE
|
||
RPM \*.spec files can be found at [openSUSE Build Servide](https://build.opensuse.org/project/show/home:mkittler).
|
||
Packages are available for x86_64, aarch64 and armv7l. Since GCC provided by Leap is too old, only Tumbleweed packages
|
||
are up-to-date.
|
||
|
||
#### Gentoo
|
||
Packages are provided by perfect7gentleman; checkout his [repository](https://github.com/perfect7gentleman/pg_overlay).
|
||
|
||
#### Cygwin
|
||
Scripts to build with Cygwin are provided by svnpenn. Checkout his
|
||
[repository](https://github.com/svnpenn/glade).
|
||
|
||
### General notes
|
||
* There is a workaround for [GCC Bug 66145](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66145) provided
|
||
in io/catchiofailure.h.
|