Boot check file exist with path

[sam80]

Hello everyone,
I have a problem to get a true value from the following argument:

string path="c:\\test\test.txt";
boost::filesystem::exists(path) return files

Any suggestion?

thanks

[E0p9LyTq]

string path="c:\\test\\test.txt";

[sam80]

still does not work. I want to indicate if the file exist inside an arbitrary path and not just only in the project folder.

[E0p9LyTq]

I suspect you are not creating a Boost path object to pass to Boost's filesystem functions. Passing a C++ string won't work.

#include <iostream>
#include <string>
#include <boost/filesystem.hpp>

int main()
{
   std::string test = "C:\\test\\test.txt";
   boost::filesystem::path p(test);  // avoid repeated path construction below

   if (exists(p))    // does path p actually exist?
   {
      if (is_regular_file(p))        // is path p a regular file?
      {
         std::cout << p << " size is " << file_size(p) << '\n';
      }
      else if (is_directory(p))      // is path p a directory?
      {
         std::cout << p << " is a directory\n";
      }
      else
      {
         std::cout << p << " exists, but is not a regular file or directory\n";
      }
   }
   else
   {
      std::cout << p << " does not exist\n";
   }
}

"C:\test\test.txt" size is 788

Your path string could also be: std::string path = "C:/test/test.txt";