http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49870
Summary: regex_match vs. "^"
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: b...@gcc.gnu.org
The following valid program using c++0x's regex fails, but works with C regex
utilities and the boost version of these components:
-------
#include <regex>
#include <cstdio>
// compile like
// g++ -std=gnu++0x -g -O2 71871-regex.cpp -Wfatal-errors
// execute like
// ./a.out "foo.*" "foobar" == OK
// ./a.out "^foo.*" "foobar" == FAIL
int
main(int argc, char **argv)
{
std::regex expr(argv[1], std::regex_constants::extended);
std::string test_string = argv[2];
printf("Applying regex '%s' to string '%s'\n", argv[1], argv[2]);
if (std::regex_match(test_string, expr))
printf("C++: Match\n");
else
printf("C++: NO match\n");
return 0;
}
---
This is originally reported in RH Bugzilla as
https://bugzilla.redhat.com/show_bug.cgi?id=718711
