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boost/filesystem runtime error

category: general [glöplog]
I'm working on coding something that uses boost. I found an example of directory searching in O'Reilly C++ Cookbook that looked like this.

Code: #include <iostream> #include <boost/filesystem/operations.hpp> #include <boost/filesystem/fstream.hpp> using namespace boost::filesystem; int main(int argc, char** argv) { if (argc < 2) { std::cerr << "Usage: " << argv[0] << " [dir name]\n"; return(EXIT_FAILURE); } path fullPath = // Create the full, absolute path name system_complete(path(argv[1], native)); if (!exists(fullPath)) { std::cerr << "Error: the directory " << fullPath.string( ) << " does not exist.\n"; return(EXIT_FAILURE); } if (!is_directory(fullPath)) { std::cout << fullPath.string( ) << " is not a directory!\n"; return(EXIT_SUCCESS); } directory_iterator end; for (directory_iterator it(fullPath); it != end; ++it) { // Iterate through each // element in the dir, std::cout << it->leaf( ); // almost as you would if (is_directory(*it)) // an STL container std::cout << " (dir)"; std::cout << '\n'; } return(EXIT_SUCCESS); }

This code compiles and runs fine... But my adaptation, on the other hand, is crashing at runtime. Here is a snippit of my code.

Code: void mSearchDirs(string pathNm){ path fullPath = system_complete(path(pathNm, native)); int i = 0; directory_iterator end; string tempString; for (directory_iterator it(fullPath);it != end; ++it) { tempString = it->leaf( ); if (is_directory(*it)){ g_dirsFound[i] = tempString; i++; } } }

I'm having trouble finding out why this is crashing, and how to get it running. A couple things I know are, is_directory() works with literals, for instance, if I were to say is_directory("C:\\WINDOWS"); it would return true. But if I pass it a string with that value, wont go. Also, it'll work with the boost type path. So, for example, if I pass it is_directory(fullPath); it wont crash, but will display all paths, naturally.

*it is the path iterator, so, sending the arg *it would seem to be sending a single element of fullPath, but it just doesent work... :S

Any ideas?
added on the 2007-07-22 20:31:59 by xteraco xteraco
boost is using exceptions for error handling.

add something like:

// your code
catch(boost::filesystem::filesystem_error& x)
// debug output
cout << x.what() << endl;
added on the 2007-07-22 21:42:59 by RufUsul RufUsul


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