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Re: <regex> doesn't work with g++

On 27/07/12 5:26, Daniel Colascione wrote:
On 7/26/2012 8:03 PM, Yaakov (Cygwin/X) wrote:
On 2012-07-26 16:46, Daniel Colascione wrote:
$ g++ -std=gnu++0x foo.cpp

std::regex_traits<char> >::basic_regex(char const*, unsigned
int)]+0x60): undefined reference to `std::basic_regex<char,
std::regex_traits<char> >::_M_compile()'
collect2: ld returned 1 exit status

GCC 4.5 does not have full support for C++0x. We'll need an upgrade to 4.7 for this to work.

That's surprising. The regex header was in TR1, from back in 2005. I'd have expected gcc to support it a long time ago. I'm also surprised to see that the header definition present and the libstdc++ implementation absent. That's what made me think there was something wrong with the toolchain.


std::regex is not fully implemented; upgrading to GCC 4.7 won't change anything. there are several todo notices in regex header files hinting at this.

have a look at boost::regex for the time being; should be close enough to std::regex.


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