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68 lines
3.2 KiB
Markdown
68 lines
3.2 KiB
Markdown
# GSL: Guidelines Support Library [](https://travis-ci.org/Microsoft/GSL) [](https://ci.appveyor.com/project/neilmacintosh/GSL)
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The Guidelines Support Library (GSL) contains functions and types that are suggested for use by the
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[C++ Core Guidelines](https://github.com/isocpp/CppCoreGuidelines) maintained by the [Standard C++ Foundation](https://isocpp.org).
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This repo contains Microsoft's implementation of GSL.
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The library includes types like `array_view<>`, `string_view<>`, `owner<>` and others.
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The entire implementation is provided inline in the headers under the [include](./include) directory.
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While some types have been broken out into their own headers (e.g. [include/array_view.h](./include/array_view.h)),
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it is simplest to just include [gsl.h](./include/gsl.h) and gain access to the entire library.
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> NOTE: We encourage contributions that improve or refine any of the types in this library as well as ports to
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other platforms. Please see [CONTRIBUTING.md](./CONTRIBUTING.md) for more information about contributing.
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# Quick Start
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## Supported Platforms
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The test suite that exercises GSL has been built and passes successfully on the following platforms:
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* Windows using Visual Studio 2013
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* Windows using Visual Studio 2015
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* Windows using Clang/LLVM 3.6
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* Windows using GCC 5.1
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* GNU/Linux using Clang/LLVM 3.6
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* GNU/Linux using GCC 5.1
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* OS X Yosemite using Xcode with AppleClang 7.0.0.7000072
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* OS X Yosemite using GCC-5.2.0
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* FreeBSD 10.x with Clang/LLVM 3.6
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> If you successfully port GSL to another platform, we would love to hear from you. Please submit an issue to let us know. Also please consider
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contributing any changes that were necessary back to this project to benefit the wider community.
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## Building the tests
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To build the tests, you will require the following:
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* [CMake](http://cmake.org), version 2.8.7 or later to be installed and in your PATH.
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* [UnitTest-cpp](https://github.com/Microsoft/unittest-cpp), to be cloned under the [tests/unittest-cpp](./tests/unittest-cpp) directory
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of your GSL source.
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These steps assume the source code of this repository has been cloned into a directory named `c:\GSL`.
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1. Create a directory to contain the build outputs for a particular architecture (we name it c:\GSL\vs14-x86 in this example).
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cd GSL
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md build-x86
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cd build-x86
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2. Configure CMake to use the compiler of your choice (you can see a list by running `cmake --help`).
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cmake -G "Visual Studio 14 2015" c:\GSL
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3. Build the test suite (in this case, in the Debug configuration, Release is another good choice).
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cmake --build . --config Debug
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4. Run the test suite.
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ctest -C Debug
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All tests should pass - indicating your platform is fully supported and you are ready to use the GSL types!
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## Using the libraries
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As the types are entirely implemented inline in headers, there are no linking requirements.
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Just place the contents of the [include](./include) directory within your source tree so it is available
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to your compiler, then include the appropriate headers in your program, and away you go!
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