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4e8f95b418
* Nest "gsl" directory inside a new "include" directory. * Cleanup the _MSC_VER conditionals a bit; use constexpr on VS2017+. * Don't #define noexcept on non-Microsoft implementations. * Workaround VS2017 bug in multi_span. (Also implement == and != for static_bounds_dynamic_range_t because I'm an EoP semantic soundness snob.) Fixes #441.
60 lines
2.1 KiB
Plaintext
60 lines
2.1 KiB
Plaintext
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
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//
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// This code is licensed under the MIT License (MIT).
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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///////////////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef GSL_ALGORITHM_H
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#define GSL_ALGORITHM_H
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#include <gsl/span>
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#include <algorithm>
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#ifdef _MSC_VER
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#pragma warning(push)
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// turn off some warnings that are noisy about our Expects statements
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#pragma warning(disable : 4127) // conditional expression is constant
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// blanket turn off warnings from CppCoreCheck for now
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// so people aren't annoyed by them when running the tool.
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// more targeted suppressions will be added in a future update to the GSL
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#pragma warning(disable : 26481 26482 26483 26485 26490 26491 26492 26493 26495)
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#endif // _MSC_VER
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namespace gsl
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{
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template <class SrcElementType, std::ptrdiff_t SrcExtent,
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class DestElementType, std::ptrdiff_t DestExtent>
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void copy(span<SrcElementType, SrcExtent> src, span<DestElementType, DestExtent> dest)
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{
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static_assert(std::is_assignable<decltype(*dest.data()), decltype(*src.data())>::value,
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"Elements of source span can not be assigned to elements of destination span");
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static_assert(SrcExtent == dynamic_extent || DestExtent == dynamic_extent || (SrcExtent <= DestExtent),
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"Source range is longer than target range");
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Expects(dest.size() >= src.size());
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std::copy_n(src.data(), src.size(), dest.data());
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}
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} // namespace gsl
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif // _MSC_VER
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#endif // GSL_ALGORITHM_H
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