ca7933e47d
Resolves #194415
- A constructor specifically meant for `optional<T&>` was left enabled
for `optional<T>`
- Fix it, and add a test to check for regression.
- This patch also corrects the constraints for `optional(optional<U>&)`
and `optional(const optional<U>&)` , as they were incorrectly
disallowing [valid conversions](https://godbolt.org/z/1r5Ea7z5M)
- Also, correct the `noexcept` specification.
- Add tests for both corrections.
(cherry picked from commit
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| .ci | ||
| .github | ||
| bolt | ||
| clang | ||
| clang-tools-extra | ||
| cmake | ||
| compiler-rt | ||
| cross-project-tests | ||
| flang | ||
| flang-rt | ||
| libc | ||
| libclc | ||
| libcxx | ||
| libcxxabi | ||
| libsycl | ||
| libunwind | ||
| lld | ||
| lldb | ||
| llvm | ||
| llvm-libgcc | ||
| mlir | ||
| offload | ||
| openmp | ||
| orc-rt | ||
| polly | ||
| runtimes | ||
| third-party | ||
| utils/bazel | ||
| .clang-format | ||
| .clang-format-ignore | ||
| .clang-tidy | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| LICENSE.TXT | ||
| pyproject.toml | ||
| README.md | ||
| SECURITY.md | ||
The LLVM Compiler Infrastructure
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