http://llvm.org/bugs/show_bug.cgi?id=19678
Bug ID: 19678
Summary: libc++ does not correctly handle the regex: "[^\\0]*"
Product: libc++
Version: unspecified
Hardware: PC
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 12490
--> http://llvm.org/bugs/attachment.cgi?id=12490&action=edit
Test Case
Hello,
This report is mostly forwarded from StackOverflow:
http://stackoverflow.com/questions/23484952
As far as I can tell, the following regular expression should be supported by
ECMA-262.
std::regex regex("[^\\0]*");
I've attached a simple test case (which can also be seen at stackoverflow) and
I've included a few runs below:
Using Clang 3.4 with libstdc++ 4.9.0 on Centos 6.5, we have what I believe is
the correct behavior (that is, no output).
> /opt/llvm/3.4/bin/clang++ -std=c++11 --gcc-toolchain=/opt/gcc/4.9.0
-Wl,-rpath=/opt/gcc/4.9.0/lib64 re.cc
> ./a.out
We can also use G++ 4.9.0, but that's probably not very interesting. (It
reports no output as well):
> /opt/gcc/4.9.0/bin/g++ -std=c++11 re.cc
> ./a.out
On OS X (the only place I have libc++), We see the following:
> clang++ -std=c++11 re.cc
> ./a.out
libc++abi.dylib: terminating with uncaught exception of type
std::__1::regex_error: The expression contained an invalid escaped character,
or a trailing escape.
Abort
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