On 08.05.19 14:35, Gonzalo Garramuño via Boost-users wrote:

I am getting a crash on Windows when passing a path that contains umlauts (like sampëüö ) to the path constructor.

I tried boost 1.69 and boost 1.60.

Here's the code I am using:

  namespace fs = boost::filesystem;

  const char* tmp = setlocale(LC_ALL, N_(""));

  // Create and install global locale std::locale::global(boost::locale::generator().generate( N_("") ));

  // Make boost.filesystem use it   fs::path::imbue(std::locale());

  if ( !tmp )  tmp = setlocale( LC_ALL, NULL );

  std::string program = argv[0];   fs::path file = fs::path( program );   // CRASH

This has nothing to do with boost::filesystem, but... Don't use argv[0] on Windows, and generally don't use argv for path arguments on Windows. Any Windows program that uses argv[0] for any purpose other than diagnostic output is incorrect. The reason is, of course, that Windows transforms unicode paths into the local codepage in order to generate argv, which is a lossy operation that can cause non-ASCII characters to be replaced with other characters or to be dropped entirely. You might think that this doesn't matter to you because you run in a locale that can represent all of the characters in your path. However, I can guarantee that this will not hold true for all of your users. Use GetCommandLineW to get the actual Unicode command line, CommandLineToArgvW to convert it to UTF-16, then convert from that to UTF-8 or some other sane representation. Or just pass the wchar string directly to boost::filesystem. argv[0] is broken on Windows. Do not use it. -- Rainer Deyke - rainerd@eldwood.com