Commit Graph

89 Commits

Author SHA1 Message Date
Roelf-Jilling
419ea60e3e Fix #739 correct cppcorecheck warnings for clang-cl 2018-10-15 15:42:18 +02:00
Anna Gringauze
1995e86d1a span constructor no address (#723)
* Changed &arr[0] to std::array<T, N>::data and std::address_of to protect against overloaded operator&.

* Removed the usage of `std::addressof` because it is a C++ 17 feature. Using decay for C arrays instead.

* Add unit tests for #662.

* Added c++17 test configurations for clang5.0 and clang6.0

* fixed CppCoreCheck pointer decay warning
2018-08-19 17:10:53 -07:00
Anna Gringauze
585f48ce55 better check for branch opt (#724)
* Added c++17 test configurations for clang5.0 and clang6.0

* Simplified optimization in span::operator[]
2018-08-19 16:27:30 -07:00
Stephan Dollberg
86be2366c7 Fix #717 - Add empty() to strided_span (#718) 2018-08-17 11:47:03 -07:00
Anna Gringauze
5016ce4a4d
Dev/annagrin/opt neg branch (#721)
* Added c++17 test configurations for clang5.0 and clang6.0

* Added optimization that removes a branch from span::operator[]

* minor beauty fix

* added a better message for the optimization, fixed signed/unsigned warning

* better check fir wrap-around possibility
2018-08-17 11:36:06 -07:00
Anna Gringauze
831584d947
Dev/annagrin/make not null (#711)
* Added c++17 test configurations for clang5.0 and clang6.0

* Added make_not_null helper to create a not_null

Introduction of explicit not_null constructor made it cumbersome to create not_nulls
in c++14. Adding make_not_null helper. Usage (see tests):

int i = 42;

auto x = make_not_null(&i);
helper(make_not_null(&i));
helper_const(make_not_null(&i));

* Added std::forward to make_not_null, fixed some code analysis warnings

* Fix build break in VS2015 Release configuration

* Fix build break in VS2015 Release configuration
2018-08-13 02:22:02 -07:00
Anna Gringauze
f1a2e91e4e
fixed typo 2018-08-12 21:45:39 -07:00
Anna Gringauze
cea0d0ac2b fix cppcorecheck warnings (#703)
* Added c++17 test configurations for clang5.0 and clang6.0

* Fixed CppCoreCheck warnings in GSL and tests

- Added CMakeSettings.json for VS Open Folder configuration
	- So we can easily run CppCoreCheck in VS
- Fixed CppCorecheck warnings where it made sense
- Suppressed the rest
	- Some suppression does not work due to compiler/tool bugs,
          so replaced by #pragma disable
	- CppCoreCheck has noise, suppressed those with comments
	- Catch produces many warnings, blanket-supressed them all
- Had to fix clang formatting to keep attributes in place
	- clang-format does not support attributes, so I am using
        - "CommentPragmas: '^ NO-FORMAT:'" to skip formatiting on them
- Removed GSL_NOEXCEPT macro, removed incorred noexcepts

* Ignore unknown attributes

* ignore unknown attributes in noexception mode tests

* fixed C26472 in at()

* created GSL_SUPPRESS macro to allow all compilers to parse suppression attributes

* try to fix gcc compilation problems with attributes

* ignore gsl::suppress for gcc

* move suppression to function level on return statements

clang5.0 and up does not allow attributes on return statemets in constexpr functions

* move suppression to function level on return statements

* use GSL_SUPPRESS in algorithm_tests

* Addressed PR comments
2018-08-12 21:44:17 -07:00
Anna Gringauze
6a75903c79 replace uses of GSL_NOEXCEPT macro (#719)
* Added c++17 test configurations for clang5.0 and clang6.0

* removed GSL_NOEXCEPT

- Removed GSL_NOEXCEPT macro
- Replaced by noexcept keyword when needed
- removed noexcept where a function could throw

* remove unneded undef

* fixed replace errors

* removed noexcept where function can throw
2018-08-12 20:19:16 -07:00
Stefan Reinhold
b6c531f7c1 Explicitly check for availability of std::byte (fixes #713) (#714)
* Explicitly check for availbility of std::byte

GCC > 7.3 defines __cpp_lib_byte >= 201603 when std::byte is available.
On libc++ std::byte is available since version 5.0. This can be checked
with _LIBCPP_VERSION >= 5000.
This fixes 713.

* Add missing \ in preprocessor check
2018-08-03 10:39:12 -07:00
beinhaerter
f4a715816c Suppress warnings on VS (#642)
- gsl::narrow, gsl::narrow_cast and gsl::at are the safe variants suggested by CppCoreGuideline. It does not make sense to let VS warn inside the implementation of these functions that unsafe static_cast is used and that the safe variants shall be used.
- Suppress warning that throw_exception can be declared noexcept (for the GSL_TERMINATE_ON_CONTRACT_VIOLATION case)
2018-07-31 17:53:00 -07:00
Anna Gringauze
1f76fbd168
Dev/annagrin/failfast in noexcept mode windows (#710)
made terminate call __fastfail in noexcept mode when using msvc
2018-07-31 17:30:43 -07:00
Matthieu Poullet
a9ef39f14a Fix GCC8 warnings 'useless cast to type'. (#691) 2018-06-15 10:12:37 -07:00
menete
ffdaf0fb21 fix gcc build (gcc 7) (#690)
simple solution, disable the specific warning
2018-06-08 11:41:06 -07:00
Anna Gringauze
cb2d1af89a
Added template argument deduction for not_null (#689)
* Added template  argument deduction for not_null

This allows compilers with c++17 support to infer template
instantiation types when calling not_null constructor:

    int foo(not_null<const int*> x);

    int main()
    {
        int t = 0;
        not_null x{ &t };
        return foo(not_null{ &t });
    }

* replaced deduction guides by a simple constructor

* Updated tests

* fixed check for availability of std::byte

* testing c++1z on clang

* fixed cmakelists extra endif

* include cstddef header for clang and gcc in pointers

* fixed a typo

* fix missing nullptr_t type

* fixed typo in CMakeLists.tst

* change approach to c++17 testing, step one: revert cmake testing, update clang5.0 package

removed using latest c++ due to clang5.0 failing,
update clang5.0 travis config to use llvm-toolchain-trusty-5.0

* addressed comments
2018-06-07 13:36:56 -07:00
beinhaerter
75ad0c1b40 Add as_bytes for basic_string_span, fixes issue #655 (#683) 2018-05-28 19:03:10 -07:00
Anna Gringauze
51ae678d08
Add usage for check-and-unwrap of MS STL iterators (#687)
* Add usage for check-and-unwrap of MS STL iterators

This is Billy ONeal's PR #682 with a typo fixed.

See corresponding change here:
ca77129308
That change officially exposes the STL's range checking machinery,
available in MSVC++ "15.8"+
This change augments GSL span::iterator to call into that newly exposed
machinery.

_Verify_range(cit, cit)
Requests that the iterator type check that the parameters form a valid
[First, Last) range iterator pair. This replaces _DEBUG_RANGE and
supporting machinery. The standard library provides a version for
pointers under _IDL != 0; otherwise they are normally provided via
hidden friend functions. Note that declaring some of these hidden
friends for "wrapper" iterators like move_iterator and reverse_iterator
triggers VSO#610735.

cit._Verify_offset(difference_type _Off)
For random-access iterators, performs any asserts that would be
performed by i += _Off; except with possibly a better error message and
without moving the iterator.

cit._Unwrapped()
Returns an "unchecked" or "unwrapped" iterator which has previously been
validated. The iterator may have been validated by a call to
_Verify_range or _Verify_offset (above), or by seeking a checked
iterator to a "high water mark" point.

it._Seek_to(cit) / it._Seek_to(return value from _Unwrapped())
Moves the position of the checked iterator it to the position of the
unchecked iterator supplied. Generally not intended to perform range
checks.

* Fixed build break in VS2015

* fixed constexpr build break when using VS2015
2018-05-22 18:07:49 -07:00
Casey Carter
d6a2242d97 [span] Tell MSVC how to avoid range-checking (#664)
* [span] implement non-member + as a hidden friend

Drive-by: remove garbage `operator-(difference_type, span_iterator)`.

* [span] Use pointers for range-based-for on MSVC
2018-05-09 14:01:22 -07:00
Anna Gringauze
5cbde3008a
make terminate_handler __cdecl (#673) 2018-05-02 16:19:37 -07:00
Stephan Dollberg
d6b26b367b Add __may_alias__ attribute to gsl::byte (#668)
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
2018-05-01 12:32:31 -07:00
ericLemanissier
2fc94db3eb not_null constructor is now explicit (#659)
solves #395
2018-04-24 19:11:43 -07:00
beinhaerter
fbe867a9c4 Fix clang-tidy warning about wrong comment on closing namespace (#654) 2018-04-24 19:04:24 -07:00
beinhaerter
697eb5533e final_action move assignment operator =delete against C26432 (#660)
This suppresses warning C26432 on VS2017. Fixes issue #653.
2018-04-24 18:35:53 -07:00
Stephan Dollberg
9c5e21045d Make gsl::details::throw_exception not copy exception object (#667)
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.
2018-04-24 18:35:12 -07:00
Anna Gringauze
d846fe50a3
Enable usage of gsl::narrow with exceptions disabled (#640)
* 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
2018-03-15 16:00:08 -07:00
Anna Gringauze
c6bf25a5f6
simplified constructors and removed GSL_NOEXCEPT in span (#639)
- simplified storage constructors to reduce branching
- eliminated null check for constructor from array
- removed GSL_NOEXCEPT in span
2018-03-15 12:14:29 -07:00
Alex Howlett
c9e423d7cf Fix warning 4996 on Microsoft compiler (#633) 2018-03-05 12:04:22 -08:00
Neil MacIntosh
6a33b97a84
Fix return type of templated span.subspan() (#625)
* 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 >
2018-03-03 19:12:45 -08:00
Anna Gringauze
cbd64c9ff6 fixed noexept warnings (#632)
* 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
2018-03-03 19:12:23 -08:00
Zac Hansen
ed3693fd2e make explicit not_null move constructor so it is noexcept (#630)
* make explicit not_null move constructor so it is noexcept

* added test for not_null being noexcet move constructible
2018-03-03 15:53:23 -08:00
beinhaerter
7eb8f41af5 constexpr for make_span (#627) 2018-02-23 13:35:36 -08:00
paweldac
b3870ca020 add gsl::index typedef (#620)
* rename index in multi_span to span_index

gsl::index is name reserved for different type

* add gsl::index typedef

cppcoreguidelines referece: ES.107: Don't use unsigned for subscripts, prefer gsl::index

https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Res-subscripts

* rename span_index to multi_span_index
2018-02-21 13:33:07 -08:00
Johel Ernesto Guerrero Peña
73db6ef98f Remove inline added for the now unsupported MSVC 2013. (#585) 2018-02-20 14:46:37 -08:00
caleb
13ce102ec0 gsl::index bug fix (#624)
Fixing a bug in the != operator in the gsl::index class
2018-02-20 14:37:50 -08:00
beinhaerter
c87c123d1b Fix code analysis warning in multi_span (#606)
Prevents MSVC code analysis warning
...\gsl\include\gsl\multi_span(1055): warning C26440: Function 'gsl::dim_t<-1>::dim_t<-1>' can be declared 'noexcept' (f.6: http://go.microsoft.com/fwlink/?linkid=853927).
2018-02-13 17:42:37 -08:00
Tamir Bahar
05bf567dcb Use in-class init for final_action members (C.48) (#601)
* Use in-class init for final_action members (C.48)

Initialize `invoke_` in-class, according to http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c48-prefer-in-class-initializers-to-member-initializers-in-constructors-for-constant-initializers

* Empty commit to trigger build.
2018-02-13 17:28:21 -08:00
Anna Gringauze
3a12c55cb6
Merge pull request #616 from neilmacintosh/tidy-comparison-ops
Tidy up span comparison ops
2018-02-11 22:36:32 -08:00
Neil MacIntosh
533494335b Merge branch 'master' of https://github.com/neilmacintosh/GSL into remove-move-ops 2018-02-11 14:27:05 -08:00
Neil MacIntosh
314065b317 Fix span comparison ops to take arguments by-value rather than by-ref. 2018-02-11 14:22:08 -08:00
Neil MacIntosh
f63fe12ba7 Merge from upstream master. 2018-02-11 13:36:18 -08:00
beinhaerter
3ff6004bc3 added const (#605)
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).
2018-02-11 12:19:10 -08:00
Casey Carter
95da2fd337 Don't use clang's __builtin_assume as an optimizer hint (#608)
Fixes #607.

Drive-by: use '?:' to contextually convert to bool in the fallback definition of `GSL_ASSUME`
2018-02-11 12:16:39 -08:00
Neil MacIntosh
c23d17a61a
Make iterator access functions on span constexpr (#612)
As per feedback on span received during the C++ standardization discussions.
2018-02-10 21:11:08 -08:00
Neil MacIntosh
87e22faa7e
Removed from-smart-ptr constructors. (#611)
As per feedback during standardization discussions.
2018-02-10 20:02:05 -08:00
Neil MacIntosh
5538021e76 Removed unnecessary move operations. 2018-02-10 20:00:44 -08:00
Neil MacIntosh
2bdbba7418 Removed span from-nullptr_t ctor. 2018-02-10 19:21:22 -08:00
Neil MacIntosh
72688ff009 Removed span.length() as synonym for span.size(). 2018-02-10 18:58:28 -08:00
Neil MacIntosh
9ed6ecc4e0 Made all span iterator access functions constexpr. 2018-02-10 18:25:07 -08:00
Neil MacIntosh
028925caba Removed from-smart-ptr constructors. 2018-02-10 18:05:17 -08:00
paweldac
9d65e74400 added gsl_algorithm and gsl_byte headers to main gsl header (#594) 2017-12-04 09:18:40 -08:00