Tests fail to compile under MacOS / Alpine

[stephanlachnit]

Describe the bug

Under MacOS and Alpine, the builds fail with the following compilation error:

Log

c++ -Isubprojects/Catch2-3.15.0/tests/SelfTest.p -Isubprojects/Catch2-3.15.0/tests -I../subprojects/Catch2-3.15.0/tests -Isubprojects/Catch2-3.15.0/src -I../subprojects/Catch2-3.15.0/src -I../subprojects/Catch2-3.15.0/tests/SelfTest -fdiagnostics-color=always -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST -Wall -Winvalid-pch -O0 -g -MD -MQ subprojects/Catch2-3.15.0/tests/SelfTest.p/SelfTest_UsageTests_Misc.tests.cpp.o -MF subprojects/Catch2-3.15.0/tests/SelfTest.p/SelfTest_UsageTests_Misc.tests.cpp.o.d -o subprojects/Catch2-3.15.0/tests/SelfTest.p/SelfTest_UsageTests_Misc.tests.cpp.o -c ../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: error: no matching function for call to 'get_wrapper'
  391 | TEMPLATE_PRODUCT_TEST_CASE("Product with differing arities", "[template][product]", std::tuple, (int, (int, double), (int, double, float))) {
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:142:69: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  142 |                 using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>(Catch::Detail::priority_tag<1>{})), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
      |                                                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: note: candidate template ignored: substitution failure [with Cs = <std::tuple>]: conflicting deduction 'std::tuple' against 'type-parameter-0-0' for parameter
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:128:13: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  128 |             INTERNAL_CATCH_TYPE_GEN                                                  \
      |             ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_preprocessor.hpp:117:20: note: expanded from macro 'INTERNAL_CATCH_TYPE_GEN'
  117 |     constexpr auto get_wrapper(Catch::Detail::priority_tag<1>) noexcept -> TemplateTypeList<Cs...> { return {}; }\
      |                    ^
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'Ts'
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:128:13: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  128 |             INTERNAL_CATCH_TYPE_GEN                                                  \
      |             ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_preprocessor.hpp:114:20: note: expanded from macro 'INTERNAL_CATCH_TYPE_GEN'
  114 |     constexpr auto get_wrapper(Catch::Detail::priority_tag<1>) noexcept -> TypeList<Ts...> { return {}; }\
      |                    ^
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: error: expected a qualified name after 'typename'
  391 | TEMPLATE_PRODUCT_TEST_CASE("Product with differing arities", "[template][product]", std::tuple, (int, (int, double), (int, double, float))) {
      | ^
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:142:43: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  142 |                 using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>(Catch::Detail::priority_tag<1>{})), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
      |                                           ^
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: error: expected ';' after alias declaration
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:142:250: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  142 |                 using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>(Catch::Detail::priority_tag<1>{})), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
      |                                                                                                                                                                                                                                                          ^
../subprojects/Catch2-3.15.0/tests/SelfTest/UsageTests/Misc.tests.cpp:391:1: error: unknown type name 'TestInit'
../subprojects/Catch2-3.15.0/src/catch2/catch_template_test_macros.hpp:80:47: note: expanded from macro 'TEMPLATE_PRODUCT_TEST_CASE'
   80 |     #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
      |                                               ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:155:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE'
  155 |         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
      |         ^
../subprojects/Catch2-3.15.0/src/catch2/internal/catch_template_test_registry.hpp:143:17: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2'
  143 |                 TestInit t;                                           \
      |                 ^

For the entire pipelines, see mesonbuild/wrapdb#2778

Expected behavior

The compilation does not fail

Reproduction steps

Compile catch2 via meson with tests under the mentioned platforms

Platform information:

See pipelines in mesonbuild/wrapdb#2778 for details. The only commonality I see is clang + libc++, since clang on MSYS2 seems to work.

[stephanlachnit]

Seems to be an issue with clang 20 and 21, with clang 22 this is fixed. So maybe a compiler bug.

[mvanhorn]

Implemented in #3173.