Am Freitag, 24. Februar 2017 um 15:16:48, schrieb Jean-Marc Lasgouttes <lasgout...@lyx.org> > Le 24/02/2017 à 11:54, Kornel Benko a écrit : > >> I tried to bisect, but to my surprise could not find the associated commit. > >> The only difference was that for bisecting I used another compiler (gcc > >> 4.8.4), > >> while I otherwise use the version 6.1.0. > >> > >> So I rebuild lyx with gcc4.8, the error is gone. > >> > >> Now trying with gcc5.3 ... error. > >> > >> What are the differences between gcc5.3, 6.1 and 4.8? > >> gcc4.8 Compiler does not support std_regex, flag = "--std=c++11" > >> gcc5.3 Compiler supports std_regex, flag = "--std=c++14" > >> gcc6.1 Compiler supports std_regex, flag = "--std=c++14" > > What would be nice is to understand what is the regex:es features that > are different between std::regex and boost:regex. > > JMarc
Little net-search gives for example: http://stackoverflow.com/questions/13526884/inconsistency-between-boostregex-and-stdregex http://stackoverflow.com/questions/7589672/boost-regex-vs-c11-regex http://stackoverflow.com/questions/26696250/difference-between-stdregex-match-stdregex-search Citing from the first url: gcc of course doesn't support the tr1/c++11 regex, but to give a more general answer, boost.regex's default is perl 5, according to its documentation, while C++ default is ECMAScript, extended by several locale-dependent elements of POSIX BRE. Kornel
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