Subject: [Boost-bugs] [Boost C++ Libraries] #13349: sregex not thread-safe when copied
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-12-18 15:44:34
#13349: sregex not thread-safe when copied
------------------------------+--------------------------
Reporter: wave@⦠| Owner: Eric Niebler
Type: Bugs | Status: new
Milestone: To Be Determined | Component: xpressive
Version: Boost 1.64.0 | Severity: Problem
Keywords: |
------------------------------+--------------------------
The following code does fail about every other execution:
{{{
#!c++
#include <iostream>
#include <boost/xpressive/xpressive.hpp>
#include <boost/thread.hpp>
using namespace std;
using namespace boost::xpressive;
struct MyRegexContainer {
boost::xpressive::sregex myPatterns[20];
MyRegexContainer() {
myPatterns[0] = sregex::compile("[-]?[0-9]+\\.[0-9]{2}");
for (int i =0; i < 20; i++)
{
myPatterns[i] = myPatterns[0];
}
}
void match(const std::string& wert, int index) const {
if(!regex_match(wert, myPatterns[index])){
cout << "Index " << index << " did not
match value " << wert << endl;
}
}
};
namespace {
void testSREGEXMultithreadedTASK() {
static const MyRegexContainer a;
for (int i = 0; i < 10000; ++i) {
a.match("33.00", i%20);
a.match("1.11", i%20);
}
}
}
int main() {
#ifdef BOOST_DISABLE_THREADS
cout << "BOOST_DISABLE_THREADS == TRUE" << wert << endl;
#endif
boost::thread_group tgroup;
for (int i = 0; i < 100; ++i) {
tgroup.create_thread(boost::bind(&testSREGEXMultithreadedTASK));
}
tgroup.join_all();
return 0;
}
}}}
-- Ticket URL: <https://svn.boost.org/trac10/boost/ticket/13349> Boost C++ Libraries <http://www.boost.org/> Boost provides free peer-reviewed portable C++ source libraries.
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