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| author | Jonathan Wakely <jwakely@redhat.com> | 2023-07-04 16:03:45 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2024-06-11 13:21:51 +0100 |
| commit | 874896659df65b4bdf85b3dbca0ab527bb4c920e (patch) | |
| tree | 6694894e643626cf21690cd27f4d3044b3d2359b | |
| parent | 6f0bd7cfb3288b667ab8e8ec18984a67c4238a86 (diff) | |
| download | gcc-874896659df65b4bdf85b3dbca0ab527bb4c920e.zip gcc-874896659df65b4bdf85b3dbca0ab527bb4c920e.tar.gz gcc-874896659df65b4bdf85b3dbca0ab527bb4c920e.tar.bz2 | |
libstdc++: Fix std::__uninitialized_default_n for constant evaluation [PR110542]
libstdc++-v3/ChangeLog:
PR libstdc++/110542
* include/bits/stl_uninitialized.h (__uninitialized_default_n):
Do not use std::fill_n during constant evaluation.
(cherry picked from commit 83cae6c4b788544635a71748e1881c150f42efef)
| -rw-r--r-- | libstdc++-v3/include/bits/stl_uninitialized.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libstdc++-v3/include/bits/stl_uninitialized.h b/libstdc++-v3/include/bits/stl_uninitialized.h index 7ed69f5..88e003a 100644 --- a/libstdc++-v3/include/bits/stl_uninitialized.h +++ b/libstdc++-v3/include/bits/stl_uninitialized.h @@ -690,6 +690,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION inline _ForwardIterator __uninitialized_default_n(_ForwardIterator __first, _Size __n) { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __uninitialized_default_n_1<false>:: + __uninit_default_n(__first, __n); +#endif + typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType; // See uninitialized_fill_n for the conditions for using std::fill_n. |