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Merge remote-tracking branch 'refs/remotes/Microsoft/master'

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This commit is contained in:
Vladislav Yaroslavlev 2015-11-10 11:17:46 +03:00
commit 2b2adebde5
15 changed files with 2813 additions and 3401 deletions
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4
.clang-format
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@ -1,4 +1,4 @@
ColumnLimit: 0
ColumnLimit: 100
UseTab: Never
IndentWidth: 4
@ -6,7 +6,7 @@ AccessModifierOffset: -4
NamespaceIndentation: Inner
BreakBeforeBraces: Allman
AlwaysBreakTemplateDeclarations: false
AlwaysBreakTemplateDeclarations: true
BreakConstructorInitializersBeforeComma: true
ConstructorInitializerAllOnOneLineOrOnePerLine: true
AllowShortBlocksOnASingleLine: true

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.gitignore vendored
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@ -1 +1,14 @@
tests/unittest-cpp
CMakeFiles
tests/CMakeFiles
tests/Debug
*.opensdf
*.sdf
tests/*tests.dir
*.vcxproj
*.vcxproj.filters
*.sln
*.tlog
Testing/Temporary/*.*
CMakeCache.txt
*.suo

1
.travis.yml
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@ -12,6 +12,7 @@ matrix:
packages:
- clang-3.6
- cmake
- g++-5
sources: &sources
- ubuntu-toolchain-r-test
- llvm-toolchain-precise-3.6

6
README.md
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@ -1,14 +1,14 @@
# GSL: Guidelines Support Library [![Build Status](https://travis-ci.org/Microsoft/GSL.svg?branch=master)](https://travis-ci.org/Microsoft/GSL)
# GSL: Guidelines Support Library [![Build Status](https://travis-ci.org/Microsoft/GSL.svg?branch=master)](https://travis-ci.org/Microsoft/GSL) [![Build status](https://ci.appveyor.com/api/projects/status/github/Microsoft/GSL?svg=true)](https://ci.appveyor.com/project/neilmacintosh/GSL)
The Guidelines Support Library (GSL) contains functions and types that are suggested for use by the
[C++ Core Guidelines](https://github.com/isocpp/CppCoreGuidelines) maintained by the [Standard C++ Foundation](https://isocpp.org).
This repo contains Microsoft's implementation of GSL.
The library includes types like `array_view<>`, `string_view<>`, `owner<>` and others.
The library includes types like `span<T>`, `string_span`, `owner<>` and others.
The entire implementation is provided inline in the headers under the [include](./include) directory.
While some types have been broken out into their own headers (e.g. [include/array_view.h](./include/array_view.h)),
While some types have been broken out into their own headers (e.g. [include/span.h](./include/span.h)),
it is simplest to just include [gsl.h](./include/gsl.h) and gain access to the entire library.
> NOTE: We encourage contributions that improve or refine any of the types in this library as well as ports to

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include/gsl.h
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@ -19,8 +19,8 @@
#ifndef GSL_GSL_H
#define GSL_GSL_H
#include "array_view.h" // array_view, strided_array_view...
#include "string_view.h" // zstring, string_view, zstring_builder...
#include "span.h" // span, strided_span...
#include "string_span.h" // zstring, string_span, zstring_builder...
#include <memory>
#ifdef _MSC_VER
@ -80,7 +80,7 @@ class final_act
public:
explicit final_act(F f) noexcept : f_(std::move(f)), invoke_(true) {}
final_act(final_act&& other) noexcept : f_(std::move(other.f_)), invoke_(true) { other.invoke_ = false; }
final_act(final_act&& other) noexcept : f_(std::move(other.f_)), invoke_(other.invoke_) { other.invoke_ = false; }
final_act(const final_act&) = delete;
final_act& operator=(const final_act&) = delete;
@ -195,195 +195,21 @@ private:
not_null<T>& operator-=(size_t) = delete;
};
//
// maybe_null
//
// Describes an optional pointer - provides symmetry with not_null
//
template<class T>
class maybe_null_ret;
template<class T>
class maybe_null_dbg
{
template<class U>
friend class maybe_null_dbg;
static_assert(std::is_assignable<T&, std::nullptr_t>::value, "T cannot be assigned nullptr.");
public:
maybe_null_dbg() : ptr_(nullptr), tested_(false) {}
maybe_null_dbg(std::nullptr_t) : ptr_(nullptr), tested_(false) {}
maybe_null_dbg(const T& p) : ptr_(p), tested_(false) {}
maybe_null_dbg& operator=(const T& p)
{
if (ptr_ != p)
{
ptr_ = p;
tested_ = false;
}
return *this;
}
maybe_null_dbg(const maybe_null_dbg& rhs) : ptr_(rhs.ptr_), tested_(false) {}
maybe_null_dbg& operator=(const maybe_null_dbg& rhs)
{
if (this != &rhs)
{
ptr_ = rhs.ptr_;
tested_ = false;
}
return *this;
}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg(const not_null<U> &other) : ptr_(other.get()), tested_(false) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg& operator=(const not_null<U> &other)
{
ptr_ = other.get();
tested_ = false;
return *this;
}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg(const maybe_null_dbg<U> &other) : ptr_(other.ptr_), tested_(false) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg& operator=(const maybe_null_dbg<U> &other)
{
ptr_ = other.ptr_;
tested_ = false;
return *this;
}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg(const maybe_null_ret<U> &other) : ptr_(other.get()), tested_(false) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_dbg& operator=(const maybe_null_ret<U> &other)
{
ptr_ = other.get();
tested_ = false;
return *this;
}
bool present() const { tested_ = true; return ptr_ != nullptr; }
bool operator==(const T& rhs) const { tested_ = true; return ptr_ == rhs; }
bool operator!=(const T& rhs) const { return !(*this == rhs); }
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
bool operator==(const maybe_null_dbg<U>& rhs) const { tested_ = true; rhs.tested_ = true; return ptr_ == rhs.ptr_; }
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
bool operator!=(const maybe_null_dbg<U>& rhs) const { return !(*this == rhs); }
T get() const {
fail_fast_assert(tested_);
#ifdef _MSC_VER
__assume(ptr_ != nullptr);
#endif
return ptr_;
}
operator T() const { return get(); }
T operator->() const { return get(); }
private:
// unwanted operators...pointers only point to single objects!
// TODO ensure all arithmetic ops on this type are unavailable
maybe_null_dbg<T>& operator++() = delete;
maybe_null_dbg<T>& operator--() = delete;
maybe_null_dbg<T> operator++(int) = delete;
maybe_null_dbg<T> operator--(int) = delete;
maybe_null_dbg<T>& operator+(size_t) = delete;
maybe_null_dbg<T>& operator+=(size_t) = delete;
maybe_null_dbg<T>& operator-(size_t) = delete;
maybe_null_dbg<T>& operator-=(size_t) = delete;
T ptr_;
mutable bool tested_;
};
template<class T>
class maybe_null_ret
{
static_assert(std::is_assignable<T&, std::nullptr_t>::value, "T cannot be assigned nullptr.");
public:
maybe_null_ret() : ptr_(nullptr) {}
maybe_null_ret(std::nullptr_t) : ptr_(nullptr) {}
maybe_null_ret(const T& p) : ptr_(p) {}
maybe_null_ret& operator=(const T& p) { ptr_ = p; return *this; }
maybe_null_ret(const maybe_null_ret& rhs) = default;
maybe_null_ret& operator=(const maybe_null_ret& rhs) = default;
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret(const not_null<U> &other) : ptr_(other.get()) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret& operator=(const not_null<U> &other)
{
ptr_ = other.get();
return *this;
}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret(const maybe_null_ret<U> &other) : ptr_(other.get()) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret& operator=(const maybe_null_ret<U> &other)
{
ptr_ = other.get();
return *this;
}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret(const maybe_null_dbg<U> &other) : ptr_(other.get()) {}
template <typename U, typename Dummy = std::enable_if_t<std::is_convertible<U, T>::value>>
maybe_null_ret& operator=(const maybe_null_dbg<U> &other)
{
ptr_ = other.get();
return *this;
}
bool present() const { return ptr_ != nullptr; }
T get() const { return ptr_; }
operator T() const { return get(); }
T operator->() const { return get(); }
private:
// unwanted operators...pointers only point to single objects!
// TODO ensure all arithmetic ops on this type are unavailable
maybe_null_ret<T>& operator++() = delete;
maybe_null_ret<T>& operator--() = delete;
maybe_null_ret<T> operator++(int) = delete;
maybe_null_ret<T> operator--(int) = delete;
maybe_null_ret<T>& operator+(size_t) = delete;
maybe_null_ret<T>& operator+=(size_t) = delete;
maybe_null_ret<T>& operator-(size_t) = delete;
maybe_null_ret<T>& operator-=(size_t) = delete;
T ptr_;
};
template<class T> using maybe_null = maybe_null_ret<T>;
} // namespace gsl
namespace std
{
template<class T>
struct hash<gsl::not_null<T>>
{
size_t operator()(const gsl::not_null<T> & value) const
{
return hash<T>{}(value);
}
};
} // namespace std
#ifdef _MSC_VER
#undef constexpr

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@ -0,0 +1,227 @@
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#pragma once
#ifndef GSL_STRING_SPAN_H
#define GSL_STRING_SPAN_H
#include "span.h"
#include <cstring>
// VS 2013 workarounds
#ifdef _MSC_VER
#if _MSC_VER <= 1800
#pragma push_macro("GSL_MSVC_HAS_TYPE_DEDUCTION_BUG")
#define GSL_MSVC_HAS_TYPE_DEDUCTION_BUG
#endif // _MSC_VER <= 1800
#endif // _MSC_VER
namespace gsl
{
//
// czstring and wzstring
//
// These are "tag" typedef's for C-style strings (i.e. null-terminated character arrays)
// that allow static analysis to help find bugs.
//
// There are no additional features/semantics that we can find a way to add inside the
// type system for these types that will not either incur significant runtime costs or
// (sometimes needlessly) break existing programs when introduced.
//
template<std::ptrdiff_t Extent = dynamic_range>
using czstring = const char*;
template<std::ptrdiff_t Extent = dynamic_range>
using cwzstring = const wchar_t*;
template<std::ptrdiff_t Extent = dynamic_range>
using zstring = char*;
template<std::ptrdiff_t Extent = dynamic_range>
using wzstring = wchar_t*;
//
// string_span and relatives
//
// Note that Extent is always single-dimension only
//
template <class CharT, std::ptrdiff_t Extent = dynamic_range>
using basic_string_span = span<CharT, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
using string_span = basic_string_span<char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
using cstring_span = basic_string_span<const char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
using wstring_span = basic_string_span<wchar_t, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
using cwstring_span = basic_string_span<const wchar_t, Extent>;
//
// ensure_sentinel()
//
// Provides a way to obtain an span from a contiguous sequence
// that ends with a (non-inclusive) sentinel value.
//
// Will fail-fast if sentinel cannot be found before max elements are examined.
//
template<class T, const T Sentinel>
span<T, dynamic_range> ensure_sentinel(const T* seq, std::ptrdiff_t max = PTRDIFF_MAX)
{
auto cur = seq;
while ((cur - seq) < max && *cur != Sentinel) ++cur;
fail_fast_assert(*cur == Sentinel);
return{ seq, cur - seq };
}
//
// ensure_z - creates a string_span for a czstring or cwzstring.
// Will fail fast if a null-terminator cannot be found before
// the limit of size_type.
//
template<class T>
inline basic_string_span<T, dynamic_range> ensure_z(T* const & sz, std::ptrdiff_t max = PTRDIFF_MAX)
{
return ensure_sentinel<T, 0>(sz, max);
}
// TODO (neilmac) there is probably a better template-magic way to get the const and non-const overloads to share an implementation
inline basic_string_span<char, dynamic_range> ensure_z(char* const& sz, std::ptrdiff_t max)
{
auto len = strnlen(sz, max);
fail_fast_assert(sz[len] == 0);
return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline basic_string_span<const char, dynamic_range> ensure_z(const char* const& sz, std::ptrdiff_t max)
{
auto len = strnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline basic_string_span<wchar_t, dynamic_range> ensure_z(wchar_t* const& sz, std::ptrdiff_t max)
{
auto len = wcsnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline basic_string_span<const wchar_t, dynamic_range> ensure_z(const wchar_t* const& sz, std::ptrdiff_t max)
{
auto len = wcsnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, static_cast<std::ptrdiff_t>(len) };
}
template<class T, size_t N>
basic_string_span<T, dynamic_range> ensure_z(T(&sz)[N]) { return ensure_z(&sz[0], static_cast<std::ptrdiff_t>(N)); }
template<class Cont>
basic_string_span<typename std::remove_pointer<typename Cont::pointer>::type, dynamic_range> ensure_z(Cont& cont)
{
return ensure_z(cont.data(), cont.length());
}
//
// to_string() allow (explicit) conversions from string_span to string
//
#ifndef GSL_MSVC_HAS_TYPE_DEDUCTION_BUG
template<class CharT, ptrdiff_t Extent>
std::basic_string<typename std::remove_const<CharT>::type> to_string(basic_string_span<CharT, Extent> view)
{
return{ view.data(), static_cast<size_t>(view.length()) };
}
#else
inline std::string to_string(cstring_span<> view)
{
return{ view.data(), view.length() };
}
inline std::string to_string(string_span<> view)
{
return{ view.data(), view.length() };
}
inline std::wstring to_string(cwstring_span<> view)
{
return{ view.data(), view.length() };
}
inline std::wstring to_string(wstring_span<> view)
{
return{ view.data(), view.length() };
}
#endif
template<class CharT, size_t Extent = dynamic_range>
class basic_zstring_builder
{
public:
using string_span_type = basic_string_span<CharT, Extent>;
using value_type = CharT;
using pointer = CharT*;
using size_type = typename string_span_type::size_type;
using iterator = typename string_span_type::iterator;
basic_zstring_builder(CharT* data, size_type length) : sv_(data, length) {}
template<size_t Size>
basic_zstring_builder(CharT(&arr)[Size]) : sv_(arr) {}
pointer data() const { return sv_.data(); }
string_span_type view() const { return sv_; }
size_type length() const { return sv_.length(); }
pointer assume0() const { return data(); }
string_span_type ensure_z() const { return gsl::ensure_z(sv_); }
iterator begin() const { return sv_.begin(); }
iterator end() const { return sv_.end(); }
private:
string_span_type sv_;
};
template <size_t Max = dynamic_range>
using zstring_builder = basic_zstring_builder<char, Max>;
template <size_t Max = dynamic_range>
using wzstring_builder = basic_zstring_builder<wchar_t, Max>;
}
// VS 2013 workarounds
#ifdef _MSC_VER
#if _MSC_VER <= 1800
#pragma pop_macro("GSL_MSVC_HAS_TYPE_DEDUCTION_BUG")
#undef GSL_MSVC_HAS_TYPE_DEDUCTION_BUG
#endif // _MSC_VER <= 1800
#endif // _MSC_VER
#endif // GSL_STRING_SPAN_H

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include/string_view.h
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@ -1,183 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#pragma once
#ifndef GSL_STRING_VIEW_H
#define GSL_STRING_VIEW_H
#include "array_view.h"
#include <cstring>
namespace gsl
{
//
// czstring and wzstring
//
// These are "tag" typedef's for C-style strings (i.e. null-terminated character arrays)
// that allow static analysis to help find bugs.
//
// There are no additional features/semantics that we can find a way to add inside the
// type system for these types that will not either incur significant runtime costs or
// (sometimes needlessly) break existing programs when introduced.
//
template<size_t Max = dynamic_range>
using czstring = const char*;
template<size_t Max = dynamic_range>
using cwzstring = const wchar_t*;
template<size_t Max = dynamic_range>
using zstring = char*;
template<size_t Max = dynamic_range>
using wzstring = wchar_t*;
//
// string_view and relatives
//
// Note that Extent is always single-dimension only
// Note that SizeType is defaulted to be smaller than size_t which is the array_view default
//
// TODO (neilmac) once array_view regains configurable size_type, update these typedef's
//
template <class CharT, size_t Extent = dynamic_range>
using basic_string_view = array_view<CharT, Extent>;
template<size_t Extent = dynamic_range>
using string_view = basic_string_view<char, Extent>;
template<size_t Extent = dynamic_range>
using cstring_view = basic_string_view<const char, Extent>;
template<size_t Extent = dynamic_range>
using wstring_view = basic_string_view<wchar_t, Extent>;
template<size_t Extent = dynamic_range>
using cwstring_view = basic_string_view<const wchar_t, Extent>;
//
// ensure_sentinel()
//
// Provides a way to obtain an array_view from a contiguous sequence
// that ends with a (non-inclusive) sentinel value.
//
// Will fail-fast if sentinel cannot be found before max elements are examined.
//
template<class T, class SizeType, const T Sentinel>
array_view<T, dynamic_range> ensure_sentinel(const T* seq, SizeType max = std::numeric_limits<SizeType>::max())
{
auto cur = seq;
while ((cur - seq) < max && *cur != Sentinel) ++cur;
fail_fast_assert(*cur == Sentinel);
return{ seq, cur - seq };
}
//
// ensure_z - creates a string_view for a czstring or cwzstring.
// Will fail fast if a null-terminator cannot be found before
// the limit of size_type.
//
template<class T>
inline basic_string_view<T, dynamic_range> ensure_z(T* const & sz, size_t max = std::numeric_limits<size_t>::max())
{
return ensure_sentinel<0>(sz, max);
}
// TODO (neilmac) there is probably a better template-magic way to get the const and non-const overloads to share an implementation
inline basic_string_view<char, dynamic_range> ensure_z(char* const & sz, size_t max)
{
auto len = strnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, len };
}
inline basic_string_view<const char, dynamic_range> ensure_z(const char* const& sz, size_t max)
{
auto len = strnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, len };
}
inline basic_string_view<wchar_t, dynamic_range> ensure_z(wchar_t* const & sz, size_t max)
{
auto len = wcsnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, len };
}
inline basic_string_view<const wchar_t, dynamic_range> ensure_z(const wchar_t* const & sz, size_t max)
{
auto len = wcsnlen(sz, max);
fail_fast_assert(sz[len] == 0); return{ sz, len };
}
template<class T, size_t N>
basic_string_view<T, dynamic_range> ensure_z(T(&sz)[N]) { return ensure_z(&sz[0], N); }
template<class Cont>
basic_string_view<typename std::remove_pointer<typename Cont::pointer>::type, dynamic_range> ensure_z(Cont& cont)
{
return ensure_z(cont.data(), cont.length());
}
//
// to_string() allow (explicit) conversions from string_view to string
//
template<class CharT, size_t Extent>
std::basic_string<typename std::remove_const<CharT>::type> to_string(basic_string_view<CharT, Extent> view)
{
return{ view.data(), view.length() };
}
template<class CharT, size_t Extent = dynamic_range>
class basic_zstring_builder
{
public:
using string_view_type = basic_string_view<CharT, Extent>;
using value_type = CharT;
using pointer = CharT*;
using size_type = typename string_view_type::size_type;
using iterator = typename string_view_type::iterator;
basic_zstring_builder(CharT* data, size_type length) : sv_(data, length) {}
template<size_t Size>
basic_zstring_builder(CharT(&arr)[Size]) : sv_(arr) {}
pointer data() const { return sv_.data(); }
string_view_type view() const { return sv_; }
size_type length() const { return sv_.length(); }
pointer assume0() const { return data(); }
string_view_type ensure_z() const { return gsl::ensure_z(sv_); }
iterator begin() const { return sv_.begin(); }
iterator end() const { return sv_.end(); }
private:
string_view_type sv_;
};
template <size_t Max = dynamic_range>
using zstring_builder = basic_zstring_builder<char, Max>;
template <size_t Max = dynamic_range>
using wzstring_builder = basic_zstring_builder<wchar_t, Max>;
}
#endif // GSL_STRING_VIEW_H

5
tests/CMakeLists.txt
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@ -43,11 +43,10 @@ function(add_gsl_test name)
)
endfunction()
add_gsl_test(array_view_tests)
add_gsl_test(string_view_tests)
add_gsl_test(span_tests)
add_gsl_test(string_span_tests)
add_gsl_test(at_tests)
add_gsl_test(bounds_tests)
add_gsl_test(maybenull_tests)
add_gsl_test(notnull_tests)
add_gsl_test(assertion_tests)
add_gsl_test(utils_tests)

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tests/bounds_tests.cpp
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@ -15,7 +15,7 @@
///////////////////////////////////////////////////////////////////////////////
#include <UnitTest++/UnitTest++.h>
#include <array_view.h>
#include <span.h>
#include <vector>
using namespace std;
@ -23,16 +23,16 @@ using namespace gsl;;
namespace
{
void use(unsigned int&) {}
void use(std::ptrdiff_t&) {}
}
SUITE(bounds_test)
{
TEST(basic_bounds)
{
for (auto point : static_bounds <unsigned int, dynamic_range, 3, 4 > { 2 })
for (auto point : static_bounds<dynamic_range, 3, 4 > { 2 })
{
for (unsigned int j = 0; j < decltype(point)::rank; j++)
for (decltype(point)::size_type j = 0; j < decltype(point)::rank; j++)
{
use(j);
use(point[j]);
@ -42,20 +42,20 @@ SUITE(bounds_test)
TEST(bounds_basic)
{
static_bounds<size_t, 3, 4, 5> b;
static_bounds<3, 4, 5> b;
auto a = b.slice();
static_bounds<size_t, 4, dynamic_range, 2> x{ 4 };
static_bounds<4, dynamic_range, 2> x{ 4 };
x.slice().slice();
}
TEST (arrayview_iterator)
{
static_bounds<size_t, 4, dynamic_range, 2> bounds{ 3 };
static_bounds<4, dynamic_range, 2> bounds{ 3 };
auto itr = bounds.begin();
#ifdef CONFIRM_COMPILATION_ERRORS
array_view< int, 4, dynamic_range, 2> av(nullptr, bounds);
span<int, 4, dynamic_range, 2> av(nullptr, bounds);
auto itr2 = av.cbegin();
@ -68,24 +68,24 @@ SUITE(bounds_test)
TEST (bounds_convertible)
{
static_bounds<size_t, 7, 4, 2> b1;
static_bounds<size_t, 7, dynamic_range, 2> b2 = b1;
static_bounds<7, 4, 2> b1;
static_bounds<7, dynamic_range, 2> b2 = b1;
#ifdef CONFIRM_COMPILATION_ERRORS
static_bounds<size_t, 7, dynamic_range, 1> b4 = b2;
static_bounds<7, dynamic_range, 1> b4 = b2;
#endif
static_bounds<size_t, dynamic_range, dynamic_range, dynamic_range> b3 = b1;
static_bounds<int, 7, 4, 2> b4 = b3;
static_bounds<dynamic_range, dynamic_range, dynamic_range> b3 = b1;
static_bounds<7, 4, 2> b4 = b3;
static_bounds<size_t, dynamic_range> b11;
static_bounds<dynamic_range> b11;
static_bounds<size_t, dynamic_range> b5;
static_bounds<size_t, 34> b6;
static_bounds<dynamic_range> b5;
static_bounds<34> b6;
b5 = static_bounds<size_t, 20>();
b5 = static_bounds<20>();
CHECK_THROW(b6 = b5, fail_fast);
b5 = static_bounds<size_t, 34>();
b5 = static_bounds<34>();
b6 = b5;
CHECK(b5 == b6);

304
tests/maybenull_tests.cpp
View File

@ -1,304 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#include <UnitTest++/UnitTest++.h>
#include <gsl.h>
#include <vector>
#include <iostream>
using namespace gsl;
struct MyBase { bool foo() { return true; } };
struct MyDerived : public MyBase {};
struct Unrelated {};
SUITE(MaybeNullTests)
{
TEST(TestMaybeNull1)
{
#ifdef CONFIRM_COMPILATION_ERRORS
// Forbid non-nullptr assignable types
maybe_null_ret<std::vector<int>> f_ret(std::vector<int>{1});
maybe_null_ret<std::vector<int>> f_ret(std::vector<int>{1});
maybe_null_ret<int> z_ret(10);
maybe_null_dbg<std::vector<int>> y_dbg({1,2});
maybe_null_dbg<int> z_dbg(10);
maybe_null_dbg<std::vector<int>> y_dbg({1,2});
#endif
int n = 5;
maybe_null_dbg<int *> opt_n(&n);
int result = 0;
bool threw = false;
CHECK_THROW(result = *opt_n, fail_fast);
maybe_null_ret<std::shared_ptr<int>> x_ret(std::make_shared<int>(10)); // shared_ptr<int> is nullptr assignable
maybe_null_dbg<std::shared_ptr<int>> x_dbg(std::make_shared<int>(10)); // shared_ptr<int> is nullptr assignable
}
TEST(TestMaybeNull2)
{
int n = 5;
maybe_null<int *> opt_n(&n);
int result = 0;
if (opt_n.present())
result = *opt_n;
}
TEST(TestMaybeNull3)
{
int n = 5;
maybe_null<int *> opt_n(&n);
int result = 0;
if (opt_n != nullptr)
result = *opt_n;
}
int test4_helper(maybe_null<int *> p)
{
if (p != nullptr)
return *p;
return -1;
}
TEST(TestMaybeNull4)
{
int n = 5;
int result = 0;
result = test4_helper(&n);
}
int test5_helper(maybe_null_dbg<int *> p)
{
return *p;
}
TEST(TestMaybeNull5)
{
int n = 5;
int result = 0;
bool threw = false;
CHECK_THROW(result = test5_helper(&n), fail_fast);
}
#ifdef CONFIRM_COMPILATION_ERRORS
int TestMaybeNull6()
{
int n;
maybe_null<int> o(n);
}
#endif
int g_int;
void test7_helper(maybe_null<maybe_null<int *> *> outptr)
{
g_int = 5;
if (outptr.present())
*outptr = &g_int;
}
void test7b_helper(maybe_null_dbg<maybe_null_dbg<int *> *> outptr)
{
g_int = 5;
if (outptr.present())
*outptr = &g_int;
}
TEST(TestMaybeNull7a)
{
maybe_null<int *> outval;
test7_helper(&outval);
CHECK(outval.present() && *outval == 5);
}
TEST(TestMaybeNull7b)
{
maybe_null_dbg<int *> outval;
test7b_helper(&outval);
CHECK_THROW((void)*outval, fail_fast);
}
int test8_helper1(maybe_null_dbg<int *> opt)
{
return *opt;
}
int test8_helper2a(maybe_null_dbg<int *> opt)
{
if (!opt.present())
return 0;
return test8_helper1(opt);
}
TEST(TestMaybeNull8a)
{
int n = 5;
maybe_null_dbg<int *> opt(&n);
CHECK_THROW(test8_helper2a(opt), fail_fast);
}
#ifdef CONVERT_TO_PTR_TO_CONST
int test9_helper(maybe_null<const int *> copt)
{
if (copt.present())
return *copt;
return 0;
}
void TestMaybeNull9()
{
int n = 5;
maybe_null<int *> opt(&n);
CHECK_THROW(test9_helper(opt), fail_fast);
}
#endif
TEST(TestMaybeNullCasting)
{
MyDerived derived;
maybe_null<MyDerived*> p = &derived;
CHECK(p.present());
maybe_null<MyBase*> q = p;
CHECK(q == p);
maybe_null_dbg<MyDerived*> pdbg = &derived;
CHECK(pdbg.present());
maybe_null_dbg<MyBase*> qdbg = pdbg;
CHECK(qdbg == pdbg);
#ifdef CONFIRM_COMPILATION_ERRORS
maybe_null<Unrelated*> r = p;
maybe_null<Unrelated*> s = reinterpret_cast<Unrelated*>(p);
#endif
maybe_null_dbg<Unrelated*> t = reinterpret_cast<Unrelated*>(p.get());
CHECK_THROW((void)(void*)t.get(), fail_fast);
maybe_null_dbg<Unrelated*> u = reinterpret_cast<Unrelated*>(p.get());
CHECK(u.present());
CHECK((void*)p.get() == (void*)u.get());
}
TEST(TestMaybeNullArrow)
{
MyDerived derived;
maybe_null_dbg<MyDerived*> p = &derived;
CHECK_THROW(p->foo(), fail_fast);
CHECK(p.present());
CHECK(p->foo());
maybe_null<MyBase*> q = p;
CHECK(q.present());
CHECK(q->foo());
}
TEST(TestMaybeNullCompare)
{
int i1 = 1;
int i2 = 2;
maybe_null_dbg<int*> p1 = &i1;
maybe_null_dbg<int*> p1_2 = &i1;
maybe_null_dbg<int*> p2 = &i2;
CHECK_THROW(p1.get(), fail_fast);
CHECK_THROW(p1_2.get(), fail_fast);
CHECK_THROW(p2.get(), fail_fast);
CHECK(p1 != p2);
CHECK(!(p1 == p2));
CHECK(p1 == p1);
CHECK(p1 == p1_2);
// Make sure we no longer throw here
CHECK(p1.get() != nullptr);
CHECK(p1_2.get() != nullptr);
CHECK(p2.get() != nullptr);
}
TEST(TestMaybeNullCopy)
{
int i1 = 1;
int i2 = 2;
maybe_null_dbg<int*> p1 = &i1;
maybe_null_dbg<int*> p1_2 = &i1;
maybe_null_dbg<int*> p2 = &i2;
CHECK(p1 != p2);
CHECK(p1 == p1_2);
// Make sure we no longer throw here
CHECK(p1.get() != nullptr);
CHECK(p2.get() != nullptr);
p1 = p2;
// Make sure we now throw
CHECK_THROW(p1.get(), fail_fast);
CHECK(p1 == p2);
CHECK(p1 != p1_2);
// Make sure we no longer throw here
CHECK(p1.get() != nullptr);
}
TEST(TestMaybeNullAssignmentOps)
{
MyBase base;
MyDerived derived;
Unrelated unrelated;
not_null<MyBase*> nnBase(&base);
not_null<MyDerived*> nnDerived(&derived);
not_null<Unrelated*> nnUnrelated(&unrelated);
maybe_null_ret<MyBase*> mnBase_ret1(&base), mnBase_ret2;
mnBase_ret2 = mnBase_ret1; // maybe_null_ret<T> = maybe_null_ret<T>
mnBase_ret2 = nnBase; // maybe_null_ret<T> = not_null<T>
maybe_null_ret<MyDerived*> mnDerived_ret(&derived);
mnBase_ret2 = mnDerived_ret; // maybe_null_ret<T> = maybe_null_ret<U>
mnBase_ret1 = &derived; // maybe_null_ret<T> = U;
mnBase_ret1 = nnDerived; // maybe_null_ret<T> = not_null<U>
maybe_null_ret<Unrelated*> mnUnrelated_ret;
mnUnrelated_ret = &unrelated; // maybe_null_ret<T> = T
maybe_null_dbg<MyBase*> mnBase_dbg1(&base), mnBase_dbg2;
mnBase_dbg2 = mnBase_dbg1; // maybe_null_dbg<T> = maybe_null_dbg<T>
mnBase_dbg2 = nnBase; // maybe_null_dbg<T> = not_null<T>
maybe_null_dbg<MyDerived*> mnDerived_dbg(&derived);
mnBase_dbg2 = mnDerived_dbg; // maybe_null_dbg<T> = maybe_null_dbg<U>
mnBase_dbg1 = &derived; // maybe_null_dbg<T> = U;
mnBase_dbg1 = nnDerived; // maybe_null_dbg<T> = not_null<U>
maybe_null_dbg<Unrelated*> mnUnrelated_dbg;
mnUnrelated_dbg = &unrelated; // maybe_null_dbg<T> = T
}
}
int main(int, const char *[])
{
return UnitTest::RunAllTests();
}

854
tests/array_view_tests.cpp → tests/span_tests.cpp
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File diff suppressed because it is too large Load Diff

53
tests/string_view_tests.cpp → tests/string_span_tests.cpp
View File

@ -15,38 +15,39 @@
///////////////////////////////////////////////////////////////////////////////
#include <UnitTest++/UnitTest++.h>
#include <string_view.h>
#include <string_span.h>
#include <vector>
#include <cstdlib>
using namespace std;
using namespace gsl;
SUITE(string_view_tests)
SUITE(string_span_tests)
{
TEST(TestLiteralConstruction)
{
cwstring_view<> v = ensure_z(L"Hello");
cwstring_span<> v = ensure_z(L"Hello");
CHECK(5 == v.length());
#ifdef CONFIRM_COMPILATION_ERRORS
wstring_view<> v2 = ensure0(L"Hello");
wstring_span<> v2 = ensure0(L"Hello");
#endif
}
TEST(TestConstructFromStdString)
{
std::string s = "Hello there world";
cstring_view<> v = s;
cstring_span<> v = s;
CHECK(v.length() == s.length());
}
TEST(TestConstructFromStdVector)
{
std::vector<char> vec('h', 5);
string_view<> v = vec;
std::vector<char> vec(5, 'h');
string_span<> v = vec;
CHECK(v.length() == vec.size());
}
@ -55,47 +56,67 @@ SUITE(string_view_tests)
wchar_t stack_string[] = L"Hello";
{
cwstring_view<> v = ensure_z(stack_string);
cwstring_span<> v = ensure_z(stack_string);
CHECK(v.length() == 5);
CHECK(v.used_length() == v.length());
}
{
cwstring_view<> v = stack_string;
cwstring_span<> v = stack_string;
CHECK(v.length() == 6);
CHECK(v.used_length() == v.length());
}
{
wstring_view<> v = ensure_z(stack_string);
wstring_span<> v = ensure_z(stack_string);
CHECK(v.length() == 5);
CHECK(v.used_length() == v.length());
}
{
wstring_view<> v = stack_string;
wstring_span<> v = stack_string;
CHECK(v.length() == 6);
CHECK(v.used_length() == v.length());
}
}
TEST(TestConstructFromConstCharPointer)
{
const char* s = "Hello";
cstring_span<> v = ensure_z(s);
CHECK(v.length() == 5);
CHECK(v.used_length() == v.length());
}
TEST(TestConversionToConst)
{
char stack_string[] = "Hello";
string_view<> v = ensure_z(stack_string);
cstring_view<> v2 = v;
string_span<> v = ensure_z(stack_string);
cstring_span<> v2 = v;
CHECK(v.length() == v2.length());
}
TEST(TestConversionFromConst)
{
char stack_string[] = "Hello";
cstring_view<> v = ensure_z(stack_string);
cstring_span<> v = ensure_z(stack_string);
#ifdef CONFIRM_COMPILATION_ERRORS
string_view<> v2 = v;
string_view<> v3 = "Hello";
string_span<> v2 = v;
string_span<> v3 = "Hello";
#endif
}
TEST(TestToString)
{
auto s = gsl::to_string(cstring_span<>{});
CHECK(s.length() == 0);
char stack_string[] = "Hello";
cstring_span<> v = ensure_z(stack_string);
auto s2 = gsl::to_string(v);
CHECK(s2.length() == v.length());
CHECK(s2.length() == 5);
}
}
int main(int, const char *[])

5
tests/utils_tests.cpp
View File

@ -47,6 +47,11 @@ SUITE(utils_tests)
CHECK(i == 0);
}
CHECK(i == 1);
{
auto _2 = std::move(_1);
CHECK(i == 1);
}
CHECK(i == 1);
}
CHECK(i == 1);
}