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bcf008ae55
* Fix C++20 bugs and tests * Rework CI for C++2020 tests * Update readme compiler versions
1226 lines
32 KiB
C++
1226 lines
32 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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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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#include <gtest/gtest.h>
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#include <gsl/assert> // for Expects, fail_fast (ptr only)
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#include <gsl/pointers> // for owner
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#include <gsl/span> // for span, dynamic_extent
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#include <gsl/string_span> // for basic_string_span, operator==, ensure_z
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#include <algorithm> // for move, find
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#include <cstddef> // for size_t
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#include <map> // for map
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#include <string> // for basic_string, string, char_traits, operat...
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#include <type_traits> // for remove_reference<>::type
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#include <vector> // for vector, allocator
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#include "deathTestCommon.h"
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using namespace gsl;
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// Generic string functions
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namespace generic
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{
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template <typename CharT>
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auto strlen(const CharT* s)
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{
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auto p = s;
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while (*p) ++p;
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return p - s;
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}
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template <typename CharT>
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auto strnlen(const CharT* s, std::size_t n)
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{
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return std::find(s, s + n, CharT{0}) - s;
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}
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} // namespace generic
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namespace
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{
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template <typename T>
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T move_wrapper(T&& t)
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{
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return std::move(t);
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}
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// not used otherwise
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#ifdef CONFIRM_COMPILATION_ERRORS
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template <class T>
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T create()
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{
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return T{};
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}
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template <class T>
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void use(basic_string_span<T, gsl::dynamic_extent>)
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{}
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#endif
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czstring_span<> CreateTempName(string_span<> span)
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{
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Expects(span.size() > 1);
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std::size_t last = 0;
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if (span.size() > 4)
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{
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span[0] = 't';
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span[1] = 'm';
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span[2] = 'p';
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last = 3;
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}
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span[last] = '\0';
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auto ret = span.subspan(0, 4);
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return {ret};
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}
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cwzstring_span<> CreateTempNameW(wstring_span<> span)
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{
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Expects(span.size() > 1);
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std::size_t last = 0;
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if (span.size() > 4)
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{
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span[0] = L't';
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span[1] = L'm';
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span[2] = L'p';
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last = 3;
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}
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span[last] = L'\0';
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auto ret = span.subspan(0, 4);
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return {ret};
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}
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cu16zstring_span<> CreateTempNameU16(u16string_span<> span)
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{
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Expects(span.size() > 1);
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std::size_t last = 0;
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if (span.size() > 4)
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{
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span[0] = u't';
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span[1] = u'm';
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span[2] = u'p';
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last = 3;
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}
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span[last] = u'\0';
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auto ret = span.subspan(0, 4);
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return {ret};
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}
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cu32zstring_span<> CreateTempNameU32(u32string_span<> span)
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{
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Expects(span.size() > 1);
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std::size_t last = 0;
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if (span.size() > 4)
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{
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span[0] = U't';
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span[1] = U'm';
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span[2] = U'p';
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last = 3;
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}
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span[last] = U'\0';
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auto ret = span.subspan(0, 4);
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return {ret};
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}
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} // namespace
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TEST(string_span_tests, TestLiteralConstruction)
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{
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cwstring_span<> v = ensure_z(L"Hello");
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EXPECT_TRUE(5 == v.length());
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#ifdef CONFIRM_COMPILATION_ERRORS
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wstring_span<> v2 = ensure0(L"Hello");
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#endif
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}
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TEST(string_span_tests, TestConstructFromStdString)
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{
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std::string s = "Hello there world";
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cstring_span<> v = s;
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EXPECT_TRUE(v.length() == static_cast<cstring_span<>::size_type>(s.length()));
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}
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TEST(string_span_tests, TestConstructFromStdVector)
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{
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std::vector<char> vec(5, 'h');
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string_span<> v{vec};
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EXPECT_TRUE(v.length() == static_cast<string_span<>::size_type>(vec.size()));
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}
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TEST(string_span_tests, TestStackArrayConstruction)
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{
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wchar_t stack_string[] = L"Hello";
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{
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cwstring_span<> v = ensure_z(stack_string);
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EXPECT_TRUE(v.length() == 5);
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}
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{
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cwstring_span<> v = stack_string;
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EXPECT_TRUE(v.length() == 5);
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}
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{
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wstring_span<> v = ensure_z(stack_string);
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EXPECT_TRUE(v.length() == 5);
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}
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{
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wstring_span<> v = stack_string;
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EXPECT_TRUE(v.length() == 5);
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}
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}
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TEST(string_span_tests, TestConstructFromConstCharPointer)
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{
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const char* s = "Hello";
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cstring_span<> v = ensure_z(s);
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EXPECT_TRUE(v.length() == 5);
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}
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TEST(string_span_tests, TestConversionToConst)
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{
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char stack_string[] = "Hello";
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string_span<> v = ensure_z(stack_string);
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cstring_span<> v2 = v;
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EXPECT_TRUE(v.length() == v2.length());
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}
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TEST(string_span_tests, TestConversionFromConst)
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{
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char stack_string[] = "Hello";
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cstring_span<> v = ensure_z(stack_string);
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(void) v;
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#ifdef CONFIRM_COMPILATION_ERRORS
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string_span<> v2 = v;
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string_span<> v3 = "Hello";
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#endif
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}
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TEST(string_span_tests, TestToString)
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{
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auto s = gsl::to_string(cstring_span<>{});
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EXPECT_TRUE(s.length() == static_cast<size_t>(0));
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char stack_string[] = "Hello";
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cstring_span<> v = ensure_z(stack_string);
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auto s2 = gsl::to_string(v);
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EXPECT_TRUE(static_cast<cstring_span<>::size_type>(s2.length()) == v.length());
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EXPECT_TRUE(s2.length() == static_cast<size_t>(5));
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}
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TEST(string_span_tests, TestToBasicString)
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{
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auto s = gsl::to_basic_string<char, std::char_traits<char>, ::std::allocator<char>>(
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cstring_span<>{});
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EXPECT_TRUE(s.length() == static_cast<size_t>(0));
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char stack_string[] = "Hello";
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cstring_span<> v = ensure_z(stack_string);
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auto s2 = gsl::to_basic_string<char, std::char_traits<char>, ::std::allocator<char>>(v);
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EXPECT_TRUE(static_cast<cstring_span<>::size_type>(s2.length()) == v.length());
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EXPECT_TRUE(s2.length() == static_cast<size_t>(5));
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}
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TEST(string_span_tests, EqualityAndImplicitConstructors)
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{
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{
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cstring_span<> span = "Hello";
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cstring_span<> span1;
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// comparison to empty span
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EXPECT_TRUE(span1 != span);
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EXPECT_TRUE(span != span1);
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}
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{
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cstring_span<> span = "Hello";
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cstring_span<> span1 = "Hello1";
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// comparison to different span
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EXPECT_TRUE(span1 != span);
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EXPECT_TRUE(span != span1);
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}
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{
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cstring_span<> span = "Hello";
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const char ar[] = {'H', 'e', 'l', 'l', 'o'};
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const char ar1[] = "Hello";
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const char ar2[10] = "Hello";
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const char* ptr = "Hello";
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const std::string str = "Hello";
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const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
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gsl::span<const char> sp = ensure_z("Hello");
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// comparison to literal
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EXPECT_TRUE(span == cstring_span<>("Hello"));
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// comparison to static array with no null termination
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EXPECT_TRUE(span == cstring_span<>(ar));
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// comparison to static array with null at the end
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EXPECT_TRUE(span == cstring_span<>(ar1));
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// comparison to static array with null in the middle
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EXPECT_TRUE(span == cstring_span<>(ar2));
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// comparison to null-terminated c string
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EXPECT_TRUE(span == cstring_span<>(ptr, 5));
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// comparison to string
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EXPECT_TRUE(span == cstring_span<>(str));
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// comparison to vector of charaters with no null termination
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EXPECT_TRUE(span == cstring_span<>(vec));
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// comparison to span
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EXPECT_TRUE(span == cstring_span<>(sp));
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// comparison to string_span
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EXPECT_TRUE(span == span);
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}
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{
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char ar[] = {'H', 'e', 'l', 'l', 'o'};
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string_span<> span = ar;
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char ar1[] = "Hello";
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char ar2[10] = "Hello";
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char* ptr = ar;
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std::string str = "Hello";
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std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
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gsl::span<char> sp = ensure_z(ar1);
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// comparison to static array with no null termination
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EXPECT_TRUE(span == string_span<>(ar));
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// comparison to static array with null at the end
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EXPECT_TRUE(span == string_span<>(ar1));
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// comparison to static array with null in the middle
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EXPECT_TRUE(span == string_span<>(ar2));
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// comparison to null-terminated c string
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EXPECT_TRUE(span == string_span<>(ptr, 5));
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// comparison to string
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EXPECT_TRUE(span == string_span<>(str));
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// comparison to vector of charaters with no null termination
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EXPECT_TRUE(span == string_span<>(vec));
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// comparison to span
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EXPECT_TRUE(span == string_span<>(sp));
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// comparison to string_span
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EXPECT_TRUE(span == span);
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}
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{
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const char ar[] = {'H', 'e', 'l', 'l', 'o'};
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const char ar1[] = "Hello";
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const char ar2[10] = "Hello";
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const std::string str = "Hello";
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const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
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const gsl::span<const char> sp = ensure_z("Hello");
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cstring_span<> span = "Hello";
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// const span, const other type
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EXPECT_TRUE(span == "Hello");
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EXPECT_TRUE(span == ar);
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EXPECT_TRUE(span == ar1);
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EXPECT_TRUE(span == ar2);
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#ifdef CONFIRM_COMPILATION_ERRORS
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const char* ptr = "Hello";
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EXPECT_TRUE(span == ptr);
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#endif
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EXPECT_TRUE(span == str);
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EXPECT_TRUE(span == vec);
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EXPECT_TRUE(span == sp);
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EXPECT_TRUE("Hello" == span);
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EXPECT_TRUE(ar == span);
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EXPECT_TRUE(ar1 == span);
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EXPECT_TRUE(ar2 == span);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(ptr == span);
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#endif
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EXPECT_TRUE(str == span);
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EXPECT_TRUE(vec == span);
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EXPECT_TRUE(sp == span);
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// const span, non-const other type
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char _ar[] = {'H', 'e', 'l', 'l', 'o'};
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char _ar1[] = "Hello";
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char _ar2[10] = "Hello";
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char* _ptr = _ar;
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std::string _str = "Hello";
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std::vector<char> _vec = {'H', 'e', 'l', 'l', 'o'};
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gsl::span<char> _sp{_ar, 5};
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EXPECT_TRUE(span == _ar);
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EXPECT_TRUE(span == _ar1);
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EXPECT_TRUE(span == _ar2);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(span == _ptr);
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#endif
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EXPECT_TRUE(span == _str);
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EXPECT_TRUE(span == _vec);
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EXPECT_TRUE(span == _sp);
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EXPECT_TRUE(_ar == span);
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EXPECT_TRUE(_ar1 == span);
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EXPECT_TRUE(_ar2 == span);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(_ptr == span);
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#endif
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EXPECT_TRUE(_str == span);
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EXPECT_TRUE(_vec == span);
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EXPECT_TRUE(_sp == span);
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string_span<> _span{_ptr, 5};
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// non-const span, non-const other type
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EXPECT_TRUE(_span == _ar);
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EXPECT_TRUE(_span == _ar1);
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EXPECT_TRUE(_span == _ar2);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(_span == _ptr);
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#endif
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EXPECT_TRUE(_span == _str);
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EXPECT_TRUE(_span == _vec);
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EXPECT_TRUE(_span == _sp);
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EXPECT_TRUE(_ar == _span);
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EXPECT_TRUE(_ar1 == _span);
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EXPECT_TRUE(_ar2 == _span);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(_ptr == _span);
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#endif
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EXPECT_TRUE(_str == _span);
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EXPECT_TRUE(_vec == _span);
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EXPECT_TRUE(_sp == _span);
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// non-const span, const other type
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EXPECT_TRUE(_span == "Hello");
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EXPECT_TRUE(_span == ar);
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EXPECT_TRUE(_span == ar1);
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EXPECT_TRUE(_span == ar2);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(_span == ptr);
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#endif
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EXPECT_TRUE(_span == str);
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EXPECT_TRUE(_span == vec);
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EXPECT_TRUE(_span == sp);
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EXPECT_TRUE("Hello" == _span);
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EXPECT_TRUE(ar == _span);
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EXPECT_TRUE(ar1 == _span);
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EXPECT_TRUE(ar2 == _span);
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#ifdef CONFIRM_COMPILATION_ERRORS
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EXPECT_TRUE(ptr == _span);
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#endif
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EXPECT_TRUE(str == _span);
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EXPECT_TRUE(vec == _span);
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EXPECT_TRUE(sp == _span);
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// two spans
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EXPECT_TRUE(_span == span);
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EXPECT_TRUE(span == _span);
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}
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{
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std::vector<char> str1 = {'H', 'e', 'l', 'l', 'o'};
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cstring_span<> span1 = str1;
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std::vector<char> str2 = std::move(str1);
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cstring_span<> span2 = str2;
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// comparison of spans from the same vector before and after move (ok)
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EXPECT_TRUE(span1 == span2);
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}
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}
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TEST(string_span_tests, ComparisonAndImplicitConstructors)
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{
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{
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cstring_span<> span = "Hello";
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const char ar[] = {'H', 'e', 'l', 'l', 'o'};
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const char ar1[] = "Hello";
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const char ar2[10] = "Hello";
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const char* ptr = "Hello";
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const std::string str = "Hello";
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const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
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// comparison to literal
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EXPECT_TRUE(span < cstring_span<>("Helloo"));
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EXPECT_TRUE(span > cstring_span<>("Hell"));
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// comparison to static array with no null termination
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EXPECT_TRUE(span >= cstring_span<>(ar));
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// comparison to static array with null at the end
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EXPECT_TRUE(span <= cstring_span<>(ar1));
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// comparison to static array with null in the middle
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EXPECT_TRUE(span >= cstring_span<>(ar2));
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// comparison to null-terminated c string
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EXPECT_TRUE(span <= cstring_span<>(ptr, 5));
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// comparison to string
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EXPECT_TRUE(span >= cstring_span<>(str));
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// comparison to vector of charaters with no null termination
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EXPECT_TRUE(span <= cstring_span<>(vec));
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}
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{
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char ar[] = {'H', 'e', 'l', 'l', 'o'};
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string_span<> span = ar;
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char larr[] = "Hell";
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char rarr[] = "Helloo";
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char ar1[] = "Hello";
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char ar2[10] = "Hello";
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char* ptr = ar;
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std::string str = "Hello";
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std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
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// comparison to static array with no null termination
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EXPECT_TRUE(span <= string_span<>(ar));
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EXPECT_TRUE(span < string_span<>(rarr));
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EXPECT_TRUE(span > string_span<>(larr));
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// comparison to static array with null at the end
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EXPECT_TRUE(span >= string_span<>(ar1));
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// comparison to static array with null in the middle
|
|
EXPECT_TRUE(span <= string_span<>(ar2));
|
|
|
|
// comparison to null-terminated c string
|
|
EXPECT_TRUE(span >= string_span<>(ptr, 5));
|
|
|
|
// comparison to string
|
|
EXPECT_TRUE(span <= string_span<>(str));
|
|
|
|
// comparison to vector of charaters with no null termination
|
|
EXPECT_TRUE(span >= string_span<>(vec));
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, ConstrutorsEnsureZ)
|
|
{
|
|
// remove z from literals
|
|
{
|
|
cstring_span<> sp = "hello";
|
|
EXPECT_TRUE(sp.length() == 5);
|
|
}
|
|
|
|
// take the string as is
|
|
{
|
|
auto str = std::string("hello");
|
|
cstring_span<> sp = str;
|
|
EXPECT_TRUE(sp.length() == 5);
|
|
}
|
|
|
|
// ensure z on c strings
|
|
{
|
|
gsl::owner<char*> ptr = new char[3];
|
|
|
|
ptr[0] = 'a';
|
|
ptr[1] = 'b';
|
|
ptr[2] = '\0';
|
|
|
|
string_span<> span = ensure_z(ptr);
|
|
EXPECT_TRUE(span.length() == 2);
|
|
|
|
delete[] ptr;
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, Constructors)
|
|
{
|
|
// creating cstring_span
|
|
|
|
// from span of a final extent
|
|
{
|
|
span<const char, 6> sp = "Hello";
|
|
cstring_span<> span = sp;
|
|
EXPECT_TRUE(span.length() == 6);
|
|
}
|
|
|
|
// from const span of a final extent to non-const string_span
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
{
|
|
span<const char, 6> sp = "Hello";
|
|
string_span<> span = sp;
|
|
EXPECT_TRUE(span.length() == 6);
|
|
}
|
|
#endif
|
|
|
|
// from string temporary
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
{
|
|
cstring_span<> span = std::string("Hello");
|
|
}
|
|
#endif
|
|
|
|
// default
|
|
{
|
|
cstring_span<> span;
|
|
EXPECT_TRUE(span.length() == 0);
|
|
}
|
|
|
|
// from string literal
|
|
{
|
|
cstring_span<> span = "Hello";
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const static array
|
|
{
|
|
const char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
cstring_span<> span = ar;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const static array
|
|
{
|
|
char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
cstring_span<> span = ar;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const ptr and length
|
|
{
|
|
const char* ptr = "Hello";
|
|
cstring_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const ptr and length, include 0
|
|
{
|
|
const char* ptr = "Hello";
|
|
cstring_span<> span{ptr, 6};
|
|
EXPECT_TRUE(span.length() == 6);
|
|
}
|
|
|
|
// from const ptr and length, 0 inside
|
|
{
|
|
const char* ptr = "He\0lo";
|
|
cstring_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const ptr and length
|
|
{
|
|
char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
char* ptr = ar;
|
|
cstring_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const ptr and length, 0 inside
|
|
{
|
|
char ar[] = {'H', 'e', '\0', 'l', 'o'};
|
|
char* ptr = ar;
|
|
cstring_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const string
|
|
{
|
|
const std::string str = "Hello";
|
|
const cstring_span<> span = str;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const string
|
|
{
|
|
std::string str = "Hello";
|
|
const cstring_span<> span = str;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const vector
|
|
{
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const cstring_span<> span = vec;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const vector
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const cstring_span<> span = vec;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const span
|
|
{
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const span<const char> inner = vec;
|
|
const cstring_span<> span = inner;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const span
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const span<char> inner = vec;
|
|
const cstring_span<> span = inner;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const string_span
|
|
{
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const cstring_span<> tmp = vec;
|
|
const cstring_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const string_span
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> tmp = vec;
|
|
cstring_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// creating string_span
|
|
|
|
// from string literal
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
string_span<> span = "Hello";
|
|
#endif
|
|
}
|
|
|
|
// from const static array
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = ar;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const static array
|
|
{
|
|
char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = ar;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const ptr and length
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const char* ptr = "Hello";
|
|
string_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const ptr and length
|
|
{
|
|
char ar[] = {'H', 'e', 'l', 'l', 'o'};
|
|
char* ptr = ar;
|
|
string_span<> span{ptr, 5};
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const string
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const std::string str = "Hello";
|
|
string_span<> span = str;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const string
|
|
{
|
|
std::string str = "Hello";
|
|
string_span<> span = str;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const vector
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = vec;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const vector
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = vec;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from const span
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const span<const char> inner = vec;
|
|
string_span<> span = inner;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const span
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
span<char> inner = vec;
|
|
string_span<> span = inner;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const span of non-const data from const vector
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const span<char> inner = vec;
|
|
string_span<> span = inner;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from const string_span
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
cstring_span<> tmp = vec;
|
|
string_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from non-const string_span
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const string_span<> tmp = vec;
|
|
const string_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
|
|
// from non-const string_span from const vector
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
const std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> tmp = vec;
|
|
string_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
// from const string_span of non-const data
|
|
{
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
const string_span<> tmp = vec;
|
|
const string_span<> span = tmp;
|
|
EXPECT_TRUE(span.length() == 5);
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, MoveConstructors)
|
|
{
|
|
// move string_span
|
|
{
|
|
cstring_span<> span = "Hello";
|
|
const auto span1 = std::move(span);
|
|
EXPECT_TRUE(span1.length() == 5);
|
|
}
|
|
{
|
|
cstring_span<> span = "Hello";
|
|
const auto span1 = move_wrapper(std::move(span));
|
|
EXPECT_TRUE(span1.length() == 5);
|
|
}
|
|
{
|
|
cstring_span<> span = "Hello";
|
|
const auto span1 = move_wrapper(std::move(span));
|
|
EXPECT_TRUE(span1.length() == 5);
|
|
}
|
|
|
|
// move span
|
|
{
|
|
span<const char> span = ensure_z("Hello");
|
|
const cstring_span<> span1 = std::move(span);
|
|
EXPECT_TRUE(span1.length() == 5);
|
|
}
|
|
{
|
|
span<const char> span = ensure_z("Hello");
|
|
const cstring_span<> span2 = move_wrapper(std::move(span));
|
|
EXPECT_TRUE(span2.length() == 5);
|
|
}
|
|
|
|
// move string
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::string str = "Hello";
|
|
string_span<> span = std::move(str);
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::string str = "Hello";
|
|
string_span<> span = move_wrapper<std::string>(std::move(str));
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
use<char>(create<string>());
|
|
#endif
|
|
}
|
|
|
|
// move container
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = std::move(vec);
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
std::vector<char> vec = {'H', 'e', 'l', 'l', 'o'};
|
|
string_span<> span = move_wrapper<std::vector<char>>(std::move(vec));
|
|
EXPECT_TRUE(span.length() == 5);
|
|
#endif
|
|
}
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
use<char>(create<std::vector<char>>());
|
|
#endif
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, Conversion)
|
|
{
|
|
#ifdef CONFIRM_COMPILATION_ERRORS
|
|
cstring_span<> span = "Hello";
|
|
cwstring_span<> wspan{span};
|
|
EXPECT_TRUE(wspan.length() == 5);
|
|
#endif
|
|
}
|
|
|
|
TEST(string_span_tests, zstring)
|
|
{
|
|
const auto terminateHandler = std::set_terminate([] {
|
|
std::cerr << "Expected Death. zstring";
|
|
std::abort();
|
|
});
|
|
const auto expected = GetExpectedDeathString(terminateHandler);
|
|
|
|
// create zspan from zero terminated string
|
|
{
|
|
char buf[1];
|
|
buf[0] = '\0';
|
|
|
|
zstring_span<> zspan({buf, 1});
|
|
|
|
EXPECT_TRUE(generic::strlen(zspan.assume_z()) == 0);
|
|
EXPECT_TRUE(zspan.as_string_span().size() == 0);
|
|
EXPECT_TRUE(zspan.ensure_z().size() == 0);
|
|
}
|
|
|
|
// create zspan from non-zero terminated string
|
|
{
|
|
char buf[1];
|
|
buf[0] = 'a';
|
|
|
|
auto workaround_macro = [&]() { const zstring_span<> zspan({buf, 1}); };
|
|
EXPECT_DEATH(workaround_macro(), expected);
|
|
}
|
|
|
|
// usage scenario: create zero-terminated temp file name and pass to a legacy API
|
|
{
|
|
char buf[10];
|
|
|
|
auto name = CreateTempName({buf, 10});
|
|
if (!name.empty())
|
|
{
|
|
czstring str = name.assume_z();
|
|
EXPECT_TRUE(generic::strlen(str) == 3);
|
|
EXPECT_TRUE(*(str + 3) == '\0');
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, wzstring)
|
|
{
|
|
const auto terminateHandler = std::set_terminate([] {
|
|
std::cerr << "Expected Death. wzstring";
|
|
std::abort();
|
|
});
|
|
const auto expected = GetExpectedDeathString(terminateHandler);
|
|
|
|
// create zspan from zero terminated string
|
|
{
|
|
wchar_t buf[1];
|
|
buf[0] = L'\0';
|
|
|
|
wzstring_span<> zspan({buf, 1});
|
|
|
|
EXPECT_TRUE(generic::strnlen(zspan.assume_z(), 1) == 0);
|
|
EXPECT_TRUE(zspan.as_string_span().size() == 0);
|
|
EXPECT_TRUE(zspan.ensure_z().size() == 0);
|
|
}
|
|
|
|
// create zspan from non-zero terminated string
|
|
{
|
|
wchar_t buf[1];
|
|
buf[0] = L'a';
|
|
|
|
const auto workaround_macro = [&]() { const wzstring_span<> zspan({buf, 1}); };
|
|
EXPECT_DEATH(workaround_macro(), expected);
|
|
}
|
|
|
|
// usage scenario: create zero-terminated temp file name and pass to a legacy API
|
|
{
|
|
wchar_t buf[10];
|
|
|
|
const auto name = CreateTempNameW({buf, 10});
|
|
if (!name.empty())
|
|
{
|
|
cwzstring str = name.assume_z();
|
|
EXPECT_TRUE(generic::strnlen(str, 10) == 3);
|
|
EXPECT_TRUE(*(str + 3) == L'\0');
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, u16zstring)
|
|
{
|
|
const auto terminateHandler = std::set_terminate([] {
|
|
std::cerr << "Expected Death. u16zstring";
|
|
std::abort();
|
|
});
|
|
const auto expected = GetExpectedDeathString(terminateHandler);
|
|
|
|
// create zspan from zero terminated string
|
|
{
|
|
char16_t buf[1];
|
|
buf[0] = L'\0';
|
|
|
|
u16zstring_span<> zspan({buf, 1});
|
|
|
|
EXPECT_TRUE(generic::strnlen(zspan.assume_z(), 1) == 0);
|
|
EXPECT_TRUE(zspan.as_string_span().size() == 0);
|
|
EXPECT_TRUE(zspan.ensure_z().size() == 0);
|
|
}
|
|
|
|
// create zspan from non-zero terminated string
|
|
{
|
|
char16_t buf[1];
|
|
buf[0] = u'a';
|
|
|
|
const auto workaround_macro = [&]() { const u16zstring_span<> zspan({buf, 1}); };
|
|
EXPECT_DEATH(workaround_macro(), expected);
|
|
}
|
|
|
|
// usage scenario: create zero-terminated temp file name and pass to a legacy API
|
|
{
|
|
char16_t buf[10];
|
|
|
|
const auto name = CreateTempNameU16({buf, 10});
|
|
if (!name.empty())
|
|
{
|
|
cu16zstring str = name.assume_z();
|
|
EXPECT_TRUE(generic::strnlen(str, 10) == 3);
|
|
EXPECT_TRUE(*(str + 3) == L'\0');
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, u32zstring)
|
|
{
|
|
const auto terminateHandler = std::set_terminate([] {
|
|
std::cerr << "Expected Death. u31zstring";
|
|
std::abort();
|
|
});
|
|
const auto expected = GetExpectedDeathString(terminateHandler);
|
|
|
|
// create zspan from zero terminated string
|
|
{
|
|
char32_t buf[1];
|
|
buf[0] = L'\0';
|
|
|
|
u32zstring_span<> zspan({buf, 1});
|
|
|
|
EXPECT_TRUE(generic::strnlen(zspan.assume_z(), 1) == 0);
|
|
EXPECT_TRUE(zspan.as_string_span().size() == 0);
|
|
EXPECT_TRUE(zspan.ensure_z().size() == 0);
|
|
}
|
|
|
|
// create zspan from non-zero terminated string
|
|
{
|
|
char32_t buf[1];
|
|
buf[0] = u'a';
|
|
|
|
const auto workaround_macro = [&]() { const u32zstring_span<> zspan({buf, 1}); };
|
|
EXPECT_DEATH(workaround_macro(), expected);
|
|
}
|
|
|
|
// usage scenario: create zero-terminated temp file name and pass to a legacy API
|
|
{
|
|
char32_t buf[10];
|
|
|
|
const auto name = CreateTempNameU32({buf, 10});
|
|
if (!name.empty())
|
|
{
|
|
cu32zstring str = name.assume_z();
|
|
EXPECT_TRUE(generic::strnlen(str, 10) == 3);
|
|
EXPECT_TRUE(*(str + 3) == L'\0');
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(string_span_tests, Issue305)
|
|
{
|
|
std::map<gsl::cstring_span<>, int> foo = {{"foo", 0}, {"bar", 1}};
|
|
EXPECT_TRUE(foo["foo"] == 0);
|
|
EXPECT_TRUE(foo["bar"] == 1);
|
|
}
|
|
|
|
TEST(string_span_tests, char16_t_type)
|
|
{
|
|
gsl::cu16string_span<> ss1 = gsl::ensure_z(u"abc");
|
|
EXPECT_TRUE(ss1.size() == 3);
|
|
EXPECT_TRUE(ss1.size_bytes() == 6);
|
|
|
|
std::u16string s1 = gsl::to_string(ss1);
|
|
EXPECT_TRUE(s1 == u"abc");
|
|
|
|
std::u16string s2 = u"abc";
|
|
gsl::u16string_span<> ss2 = s2;
|
|
EXPECT_TRUE(ss2.size() == 3);
|
|
|
|
gsl::u16string_span<> ss3 = ss2.subspan(1, 1);
|
|
EXPECT_TRUE(ss3.size() == 1);
|
|
EXPECT_TRUE(ss3[0] == u'b');
|
|
|
|
char16_t buf[4]{u'a', u'b', u'c', u'\0'};
|
|
gsl::u16string_span<> ss4{buf, 4};
|
|
EXPECT_TRUE(ss4[3] == u'\0');
|
|
|
|
gsl::cu16zstring_span<> ss5(u"abc");
|
|
EXPECT_TRUE((ss5.as_string_span().size()) == 3);
|
|
|
|
gsl::cu16string_span<> ss6 = ss5.as_string_span();
|
|
EXPECT_TRUE(ss6 == ss1);
|
|
|
|
std::vector<char16_t> v7 = {u'a', u'b', u'c'};
|
|
gsl::cu16string_span<> ss7{v7};
|
|
EXPECT_TRUE(ss7 == ss1);
|
|
|
|
gsl::cu16string_span<> ss8 = gsl::ensure_z(u"abc");
|
|
gsl::cu16string_span<> ss9 = gsl::ensure_z(u"abc");
|
|
EXPECT_TRUE(ss8 == ss9);
|
|
|
|
ss9 = gsl::ensure_z(u"abd");
|
|
EXPECT_TRUE(ss8 < ss9);
|
|
EXPECT_TRUE(ss8 <= ss9);
|
|
EXPECT_TRUE(ss8 != ss9);
|
|
}
|
|
|
|
TEST(string_span_tests, char32_t_type)
|
|
{
|
|
gsl::cu32string_span<> ss1 = gsl::ensure_z(U"abc");
|
|
EXPECT_TRUE(ss1.size() == 3);
|
|
EXPECT_TRUE(ss1.size_bytes() == 12);
|
|
|
|
std::u32string s1 = gsl::to_string(ss1);
|
|
EXPECT_TRUE(s1 == U"abc");
|
|
|
|
std::u32string s2 = U"abc";
|
|
gsl::u32string_span<> ss2 = s2;
|
|
EXPECT_TRUE(ss2.size() == 3);
|
|
|
|
gsl::u32string_span<> ss3 = ss2.subspan(1, 1);
|
|
EXPECT_TRUE(ss3.size() == 1);
|
|
EXPECT_TRUE(ss3[0] == U'b');
|
|
|
|
char32_t buf[4]{U'a', U'b', U'c', U'\0'};
|
|
gsl::u32string_span<> ss4{buf, 4};
|
|
EXPECT_TRUE(ss4[3] == u'\0');
|
|
|
|
gsl::cu32zstring_span<> ss5(U"abc");
|
|
EXPECT_TRUE(ss5.as_string_span().size() == 3);
|
|
|
|
gsl::cu32string_span<> ss6 = ss5.as_string_span();
|
|
EXPECT_TRUE(ss6 == ss1);
|
|
|
|
gsl::cu32string_span<> ss8 = gsl::ensure_z(U"abc");
|
|
gsl::cu32string_span<> ss9 = gsl::ensure_z(U"abc");
|
|
EXPECT_TRUE(ss8 == ss9);
|
|
|
|
ss9 = gsl::ensure_z(U"abd");
|
|
EXPECT_TRUE(ss8 < ss9);
|
|
EXPECT_TRUE(ss8 <= ss9);
|
|
EXPECT_TRUE(ss8 != ss9);
|
|
}
|
|
|
|
TEST(string_span_tests, as_bytes)
|
|
{
|
|
cwzstring_span<> v(L"qwerty");
|
|
const auto s = v.as_string_span();
|
|
const auto bs = as_bytes(s);
|
|
EXPECT_TRUE(static_cast<const void*>(bs.data()) == static_cast<const void*>(s.data()));
|
|
EXPECT_TRUE(bs.size() == s.size_bytes());
|
|
}
|
|
|
|
TEST(string_span_tests, as_writable_bytes)
|
|
{
|
|
wchar_t buf[]{L"qwerty"};
|
|
wzstring_span<> v(buf);
|
|
const auto s = v.as_string_span();
|
|
const auto bs = as_writable_bytes(s);
|
|
EXPECT_TRUE(static_cast<const void*>(bs.data()) == static_cast<const void*>(s.data()));
|
|
EXPECT_TRUE(bs.size() == s.size_bytes());
|
|
}
|