While working an updated build of pdfgrep, I ran in to a crash when the environment local was something other than LC_ALL=C.
Looking at http://www.cplusplus.com/reference/locale/locale/locale/ the empty string passed to the constructor should use the environment's default locale and if the “argument” does not represent a valid C-locale in the implementation, runtime_error is thrown. $ g++ -o bug50 bug50.cc ; echo en_US.UTF-8; LC_ALL="en_US.UTF-8" ./bug50; echo C; LC_ALL=C ./bug50 en_US.UTF-8 Line:8:start Line:17:exception thrown Line:19:succeeded using Minimal C locale (the same as locale::classic) Line:21:about to set global locale Line:23:done C Line:8:start Line:13:succeeded using The environment's default locale Line:21:about to set global locale Line:23:done $ cat -n bug50.cc 1 #include <iostream> 2 #include <locale> 3 4 using namespace std; 5 6 int main(int argc, char** argv) 7 { 8 cout << "Line:" << __LINE__ << ":start" << endl; 9 locale l; 10 try 11 { 12 l=locale(""); 13 cout << "Line:" << __LINE__ << ":succeeded using The environment's default locale" << endl; 14 } 15 catch (exception& e) 16 { 17 cout << "Line:" << __LINE__ << ":exception thrown" << endl; 18 l=locale("C"); 19 cout << "Line:" << __LINE__ << ":succeeded using Minimal C locale (the same as locale::classic)" << endl; 20 } 21 cout << "Line:" << __LINE__ << ":about to set global locale" << endl; 22 locale::global(l); 23 cout << "Line:" << __LINE__ << ":done" << endl; 24 25 } Thoughts? This is out of my knowledge area – never worked with locales in C++ before. -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
