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Such as the title, how to do it. And what is the difference between the usage of making a absolute path and making a relative path. Who can gave me a Sample code？ PS：my environment is centos

wangli_64604
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    http://stackoverflow.com/questions/10167382/boostfilesystem-get-relative-path – Jason B Jun 16 '15 at 02:22
  • What are you trying to do? What are your inputs? A relative path is just one that doesn't start with a `/` slash, e.g. `if (std::ifstream in("subdir/file.in"))`. Absolute paths do start with a `/`. What's your actual difficulty? Where's your code? – Tony Delroy Jun 16 '15 at 03:07

1 Answers1

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You can use boost::filesystem::create_directory to create relative path or absolute path. My codes:

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

using namespace std;

int main()
{
    //create relative path
    const string reletive_path("./tmp");
    if(! boost::filesystem::exists(reletive_path))
        boost::filesystem::create_directory(reletive_path);

    //create absolute path
    const string abs_path("/tmp");
    if(! boost::filesystem::exists(abs_path))
        boost::filesystem::create_directory(abs_path);
    return 0;
 }

Whether creating a relative or a absolute depend on what param you give. For example, if you give /tmp, it will create a absolute, and ./tmp will create a relative. I hope this can help you.

cwfighter
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