[Clang] No __builtin_isascii ()
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clang:frontend
extension:gnu
- Dominant language
- LLVM
- Stars
- 40.5k
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Description
int
src (int a)
{
return __builtin_isascii (a);
}
GCC compiles this but not Clang.
Similar to LLVM bug 139946
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the C example from the linked Godbolt case with Clang and compare its behavior with GCC. Read the related LLVM bug 139946 for context and trace Clang's handling of builtins; done means __builtin_isascii is accepted with the expected behavior and covered by a compiler test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100