Determine if Linux or Windows in C++

Question

I am writing a cross-platform compatible function in C++ that creates directories based on input filenames. I need to know if the machine is Linux or windows and use the appropr

Answer 1

Use:

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__)
static const std::string slash="\\";
#else
static const std::string slash="/";
#endif

BTW, you can still safely use this slash "/" on Windows as windows understands this perfectly. So just sticking with "/" slash would solve problems for all OSes even like OpenVMS where path is foo:[bar.bee]test.ext can be represented as /foo/bar/bee/test.ext.