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* [Bug libstdc++/109993] New: std::regex("\\a", std::regex::basic) does not diagnose invalid BRE
@ 2023-05-26 16:22 redi at gcc dot gnu.org
0 siblings, 0 replies; only message in thread
From: redi at gcc dot gnu.org @ 2023-05-26 16:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109993
Bug ID: 109993
Summary: std::regex("\\a", std::regex::basic) does not diagnose
invalid BRE
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Blocks: 102445
Target Milestone: ---
#include <regex>
int main()
{
std::regex("\\a", std::regex::basic);
}
This should throw a std::regex_error exception.
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03
"The interpretation of an ordinary character preceded by an unescaped
<backslash> ( '\\' ) is undefined, except for: [...]"
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102445
[Bug 102445] [meta-bug] std::regex issues
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2023-05-26 16:22 [Bug libstdc++/109993] New: std::regex("\\a", std::regex::basic) does not diagnose invalid BRE redi at gcc dot gnu.org
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