11.4 RWDirectoryIterator
RWDirectoryIterator is a template class which represents a portable iterator over the content of a file system directory. RWDirectoryIterator has one specialization (const char*) suited for flat iteration (i.e. , no recursive iteration of directories) and one (RWCString) which is recursive.
Both specializations are: assignable, copy constructible, equality comparable.
RWDirectoryIterator<const char*> iter ("somedir"); // OK
RWDirectoryIterator<const char*> iter1 (iter); // OK
iter1 = iter; // OK
bool b = iter == iter1; // OK
11.4.1 Flat Iteration Example
void ls (const char* s)
{
// Path
RWCString path (s);
std::cout << "Listing content of : " << s << std::endl;
// Create the iterator
RWDirectoryIterator<const char*> it (s);
// Iterate until the iterator compares equal with the end
// iterator (RWDirectoryIterator<const char*> ())
for(; it != RWDirectoryIterator<const char*> (); ++it) {
std::cout << std::setw (40) << std::left << *it;
RWCString filename (path);
filename += PATH_SEPARATOR;
filename += *it;
// Print the filename
std::cout << filename << "\n";
}
std::cout << std::endl;
}
11.4.2 Recursive Iteration Example
void ls_R (const char* s, int depth = 0)
{
std::cout << "Recursively listing content of : " << s
<< " (depth: " << depth << ")\n";
// Create the iterator
RWDirectoryIterator<RWCString> it (s, depth);
// Iterate until iterator compares equal with end iterator
// (RWDirectoryIterator<RWCString> ())
for (; it != RWDirectoryIterator<RWCString> (); ++it) {
std::cout << std::setw (60) << std::left << *it;
// Print the filename
std::cout << *it << "\n";
}
std::cout << std::endl;
}
© Copyright Rogue Wave Software, Inc. All Rights Reserved.
Rogue Wave and SourcePro are registered trademarks of Rogue Wave Software, Inc. in the United States and other countries. All other trademarks are the property of their respective owners.
Contact Rogue Wave about documentation or support issues.