https://bugs.llvm.org/show_bug.cgi?id=44072
Bug ID: 44072
Summary: StringRef::count(StringRef) doesn't behave as
documented
Product: new-bugs
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: be...@bensge.com
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org
The StringRef::count(StringRef) documentation reads as follows:
Return the number of non-overlapped occurrences of \arg Str in the string.
However, the implementation of this method actually counts overlapping
occurrences as well.
Minimum example:
`StringRef("abbabba").count("abba")` returns 2, when it should return 1.
There are very few usages of this API in LLVM. I could only find one usage of
this API where the bug actually makes a difference. All other usages used a
search string with length one, the bug doesn't affect this special case.
There are no tests to ensure the correct overlapping-occurrence behavior of
this function.
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
