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update macros for codecvt and support C++26 support on clang19 (#1113)

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* Modifies #1100 
* That PR comes from https://github.com/phlptp/CLI11 and unfortunately I
have no way of opening a PR to that repo, pointing to that branch...

The commit you care about is
9a2884ad6a
@phlptp

where I fix the build error on LLVM 19 with C++26 after rooting the
actual template issue (see
https://github.com/CLIUtils/CLI11/issues/1098#issuecomment-2572715578)

It comes down to C++26 adding a tuple interface to std::complex
https://en.cppreference.com/w/cpp/numeric/complex/tuple_size

---------

Co-authored-by: Philip Top <phlptp@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Julien Marrec
2025-01-11 14:42:24 +01:00
committed by GitHub
parent 7364157946
commit 10ac3e59a4
5 changed files with 33 additions and 8 deletions
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1
tests/HelpersTest.cpp
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@@ -1520,6 +1520,7 @@ static_assert(CLI::detail::is_tuple_like<std::array<int, 10>>::value, "std::arra
static_assert(!CLI::detail::is_tuple_like<std::string>::value, "std::string should not be like a tuple");
static_assert(!CLI::detail::is_tuple_like<double>::value, "double should not be like a tuple");
static_assert(CLI::detail::is_tuple_like<std::tuple<double, int, double>>::value, "tuple should look like a tuple");
static_assert(!CLI::detail::is_tuple_like<std::complex<double>>::value, "std::complex should not be like a tuple");
TEST_CASE("Types: LexicalConversionTuple2", "[helpers]") {
CLI::results_t input = {"9.12", "19"};