Clang 22 error: '__COUNTER__' is a C2y extension [-Werror,-Wc2y-extensions] #3076
Description
Describe the bug
Build tests with Clang 22 causes '__COUNTER__' is a C2y extension warnings on all usages of TEST_CASE(…).
Simplified example:
#include <catch2/catch_test_macros.hpp>
// ...
TEST_CASE("Connection tests", "[ConnectionTests]") { // <<<-- Line 66
// ...
}Compilation result:
__w/seasocks/seasocks/src/test/c/ConnectionTests.cpp:66:1: error: '__COUNTER__' is a C2y extension [-Werror,-Wc2y-extensions]
66 | TEST_CASE("Connection tests", "[ConnectionTests]") {
| ^
/__w/seasocks/seasocks/build/_deps/catch2-src/src/catch2/../catch2/catch_test_macros.hpp:151:28: note: expanded from macro 'TEST_CASE'
151 | #define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
| ^
/__w/seasocks/seasocks/build/_deps/catch2-src/src/catch2/../catch2/internal/catch_test_registry.hpp:118:35: note: expanded from macro 'INTERNAL_CATCH_TESTCASE'
118 | INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), __VA_ARGS__ )
| ^
/__w/seasocks/seasocks/build/_deps/catch2-src/src/catch2/../catch2/internal/catch_unique_name.hpp:15:85: note: expanded from macro 'INTERNAL_CATCH_UNIQUE_NAME'
15 | # define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
| ^
Expected behavior
No error or warning emitted.
Reproduction steps
- Build a test with Clang 22
Platform information:
- OS: Linux
- Compiler+version: Clang 22.1.1
- Catch version: v3.13.0
Additional context
Enabled compiler warnings: -Wall -Werror -Wextra -pedantic -pedantic-errors