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Suppress warnings for using pack indexing in C++23 #31

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Merged
saki7 merged 1 commit into from
Feb 14, 2026
Merged

Suppress warnings for using pack indexing in C++23 #31

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7 changes: 6 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -133,7 +133,12 @@ if(MSVC)
)
else()
if(CMAKE_CXX_COMPILER_ID MATCHES Clang)
target_compile_options(_iris_cxx_common INTERFACE -fno-builtin-std-forward_like)
target_compile_options(
_iris_cxx_common
INTERFACE
-fno-builtin-std-forward_like
-Wno-c++26-extensions # workaround for warnings emitted when using pack indexing
)
endif()
target_compile_options(
_iris_cxx_common
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8 changes: 1 addition & 7 deletions include/iris/type_traits.hpp
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Expand Up @@ -57,10 +57,6 @@ template<std::size_t I, class T>
using at_c_t = at_c<I, T>::type;

#if __cpp_pack_indexing >= 202311L // has native pack indexing
# if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wc++26-extensions"
# endif

# define IRIS_CORE_PACK_INDEXING(I, Ts_ellipsis) Ts_ellipsis[I]

Expand All @@ -74,9 +70,7 @@ struct at_c<I, TT<Ts...>>
{
using type = Ts...[I];
};
# if defined(__clang__)
# pragma clang diagnostic pop
# endif

// ----------------------------------------------------------
#else // no native pack indexing
template<std::size_t I, class... Ts>
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