https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68032
Bug ID: 68032
Summary: std-c++-14: Regex fails to match
Product: gcc
Version: 5.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ge...@schorsch-tech.de
Target Milestone: ---
I try to parse some data files and check the data with regex. During the parse
it fails on some lines. I reduced the code to the following.
<code>
#include <regex>
#include <iostream>
#include <string>
int main(int argc, char** argv)
{
std::string data = " data(C96) = { 96, 1000, 15000, 6400, 6470, 0, 0,
7490, 8000, 1000, 1, 10, 0 };";
auto ex0 = std::regex("data\\(([a-zA-Z0-9_-]+)\\) ?= ?\\{ ?([0-9+]),
?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+),
?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+), ?([0-9]+) ?\\};");
std::smatch what;
if (std::regex_search(data, what, ex0))
{
std::cout << "Matched" << std::endl;
}
else
{
std::cout << "FAIL" << std::endl;
}
}
</code>
Compile it with
g++ --std=c++14 main.cpp -o test
run it:
./test
Result:
FAIL:
Expected:
Matched
g++ --version
g++ (Gentoo 5.2.0 p1.2, pie-0.6.4) 5.2.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
