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| author | Jonathan Wakely <jwakely@redhat.com> | 2023-01-09 10:45:31 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2023-01-10 10:09:21 +0000 |
| commit | b39f4333d18cc58b1a655c537a78fefe95b82609 (patch) | |
| tree | 0515ba30fa8f71bc24cc69f752f17a932a45f0ed /libstdc++-v3/include/std/span | |
| parent | 0333892db367b2b97b1ab9d3702b16f3f9e92ec3 (diff) | |
| download | gcc-b39f4333d18cc58b1a655c537a78fefe95b82609.zip gcc-b39f4333d18cc58b1a655c537a78fefe95b82609.tar.gz gcc-b39f4333d18cc58b1a655c537a78fefe95b82609.tar.bz2 | |
libstdc++: Fix std::span constraint for sizeof(size_t) < sizeof(int) [PR108221]
The default constructor has a constraint that is always false if
arithmetic on size_t values promotes to int. Rewrite the constraint
exactly as written in the standard, which works correctly.
libstdc++-v3/ChangeLog:
PR libstdc++/108221
* include/std/span (span::span()): Un-simplify constraint to
work for size_t of lesser rank than int.
Diffstat (limited to 'libstdc++-v3/include/std/span')
| -rw-r--r-- | libstdc++-v3/include/std/span | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/include/std/span b/libstdc++-v3/include/std/span index 251fed9..b336332 100644 --- a/libstdc++-v3/include/std/span +++ b/libstdc++-v3/include/std/span @@ -145,7 +145,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION constexpr span() noexcept - requires ((_Extent + 1u) <= 1u) + requires (_Extent == dynamic_extent || _Extent == 0) : _M_ptr(nullptr), _M_extent(0) { } |