What part of regex is supported by GCC 4.9?

Question

I don\'t get this. GCC is supposed to support but accoriding to their http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.tr1

Status page \"7 Reg

Answer 1

GCC 4.9 does indeed support the C++11 functionality but not the tr1 version. Note that the difference is that parts (all?) of the latter exist within a tr1:: namespace while the C++11 is within namespace std. There's not much point to going backwards and adding in tr1 support when C++11 has been published for some time now.