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hydroo

getting the relativ path

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Is there an easy way to get the relative path from a base directory to a file? (Both are absolute paths) e.g. is there a function like "string relPath( string basedir, string targetfile );" ? using c/c++ and QT4 on Linux(so WinAPI won't help). thanks in advance. [Edited by - hydroo on June 1, 2007 7:32:39 AM]

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If you can use the classes within the boost::filesystem namespace they will provide you with the functionality you are looking for.

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Also you could get the results you want by using std::strings. For instance:


#include <string>

std::string GetRelativeDir(const char * BaseDir, const char * FilePath)
{
std::string file = FilePath;
std::string basedir = BaseDir;
int length = basedir.length();

std::string relativedir = file.substr(length, file.length()-length);;

return relativedir;
}


So:


#include <iostream>

int main(int argc, char* argv[])
{
std::cout << GetRelativeDir("C:/Basedir/", "C:/Basedir/MuchStuff/Data/Moo/Boo/moo.txt").c_str() << std::endl;

return 0;
}


would output "MuchStuff/Data/Moo/Boo/moo.txt", which is the relative path to the file, relative to the given base directory.

Not sure if this is what you were looking for.. if not and I misunderstood, then I'm sorry. :)

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