C++17 defines `std::byte*` to have the same aliasing properties as
`char*`. Hence, we mark it with the `__may_alias__` attribute under gcc
and clang.
Based on the fix by Martin Moene in byte-lite.
Fixes#663
This fixes the build with clang 7 which introduces a new warning
`-Wreturn-std-move` which warns about needless copies when a move
operation is available (see https://reviews.llvm.org/rL329914).
We take the exception object by uref so we should throw the forwarded
version.
* Enable usage of gsl::narrow with exceptions disabled
This solution uses the approach of boost::asio to enabling usage of the
library in environments where exception usage is either prohibited
or not feasible (due to code size constraints). A function template
gsl::throw_exception has been added, which in a normal environment just
throws the exception. However, when GSL_TERMINATE_ON_CONTRACT_VIOLATION
is defined the function is only declared by gsl and the definition of
this function template must be supplied by the library's user.
Closes: #468
Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>
Addition:
- understand STL no exception macro
- use function static variable to set termination handler in kernel mode
- add compile-only tests for no-exception mode
* added termination tests and fixed bugs
* disabled warning C4577 for msvc 2015
* Added support for returning fixed-spize spans from subspan().
* Addressed issues from code review.
* Took simpler approach to static data member.
* Subtle fix to support MSVC 15.
* Helps to not introduce extraneous >
* fixed noexept warnings
- Removed conditional compilation for throwing version of GSL
vs fail_fast because we don't want users of the code to see
differences in the span interface dependent on error mechanism
chosen
- Removed noexcept from functions that may fail at runtime
- Fixed CppCoreCheck warnings related to missing and incorrect
noexcept
- do not warn on unnown attributes for GCC and Clang
* remove suppress that does not compiler for clang and gcc
`CMAKE_VERSION_MAJOR` is just the first component of the CMake version (e.g. 3 for 3.10.1) which compares less than `3.7.9` if it is less than 3. The proper variable to compare is `CMAKE_VERSION` which contains the full version number.
Resolves compiler code analysis warning ...\gsl\include\gsl\string_span(101): warning C26496: The variable 'str_span' is assigned only once, mark it as const (con.4: https://go.microsoft.com/fwlink/p/?LinkID=784969).
changes:
- minimal cmake version updated to 3.7(first version with .natvis file handling)
- updated cmake version in readme file
- GSL.natvis file is added only to VS projects
