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Fix compiling with C++17 + Clang 5 + libstdc++ v5

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This basically tests the combination where the compiler supports most
of C++17 but the library does not.
This commit is contained in:
Dimitrij Mijoski
2021-03-26 02:04:45 +01:00
committed by Martin Hořeňovský
parent 023b5306b4
commit 86f86c4c23
4 changed files with 20 additions and 15 deletions
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7
.travis.yml
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@@ -61,6 +61,13 @@ matrix:
packages: ['clang-5.0']
env: COMPILER='clang++-5.0' CPP14=1
- os: linux
compiler: clang
addons:
apt:
sources: *all_sources
packages: ['clang-5.0']
env: COMPILER='clang++-5.0' CPP17=1
- os: linux
compiler: clang

2
src/catch2/internal/catch_compiler_capabilities.hpp
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@@ -222,7 +222,7 @@
// Check if byte is available and usable
# if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
# include <cstddef>
# if __cpp_lib_byte > 0
# if defined(__cpp_lib_byte) && (__cpp_lib_byte > 0)
# define CATCH_INTERNAL_CONFIG_CPP17_BYTE
# endif
# endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)

6
src/catch2/matchers/catch_matchers_templated.hpp
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@@ -55,11 +55,11 @@ namespace Matchers {
return arr;
}
#ifdef CATCH_CPP17_OR_GREATER
#if defined( __cpp_lib_logical_traits ) && __cpp_lib_logical_traits >= 201510
using std::conjunction;
#else // CATCH_CPP17_OR_GREATER
#else // __cpp_lib_logical_traits
template<typename... Cond>
struct conjunction : std::true_type {};
@@ -67,7 +67,7 @@ namespace Matchers {
template<typename Cond, typename... Rest>
struct conjunction<Cond, Rest...> : std::integral_constant<bool, Cond::value && conjunction<Rest...>::value> {};
#endif // CATCH_CPP17_OR_GREATER
#endif // __cpp_lib_logical_traits
template<typename T>
using is_generic_matcher = std::is_base_of<

20
tests/SelfTest/UsageTests/Generators.tests.cpp
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@@ -62,12 +62,12 @@ TEST_CASE("tables", "[generators]") {
// Structured bindings make the table utility much nicer to use
TEST_CASE( "strlen2", "[approvals][generators]" ) {
auto [test_input, expected] = GENERATE( table<std::string, size_t>({
{"one", 3},
{"two", 3},
{"three", 5},
{"four", 4}
}));
using tuple_type = std::tuple<std::string, int>; // see above workaround
auto [test_input, expected] =
GENERATE( table<std::string, size_t>( { tuple_type{ "one", 3 },
tuple_type{ "two", 3 },
tuple_type{ "three", 5 },
tuple_type{ "four", 4 } } ) );
REQUIRE( test_input.size() == expected );
}
@@ -103,11 +103,9 @@ TEST_CASE( "strlen3", "[generators]" ) {
static auto eatCucumbers( int start, int eat ) -> int { return start-eat; }
SCENARIO("Eating cucumbers", "[generators][approvals]") {
auto [start, eat, left] = GENERATE( table<int,int,int> ({
{ 12, 5, 7 },
{ 20, 5, 15 }
}));
using tuple_type = std::tuple<int, int, int>;
auto [start, eat, left] = GENERATE( table<int, int, int>(
{ tuple_type{ 12, 5, 7 }, tuple_type{ 20, 5, 15 } } ) );
GIVEN( "there are " << start << " cucumbers" )
WHEN( "I eat " << eat << " cucumbers" )