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Provides a specialization of the class template for RWCString, with recursive iteration of subdirectories. More...
#include <rw/directory.h>
Inherits RWHandle.
Public Types | |
typedef RWCString | value_type |
Public Member Functions | |
RWDirectoryIterator () | |
RWDirectoryIterator (const char *cs, int depth=0) | |
RWDirectoryIterator (const RWDirectoryIterator &it) | |
RWDirectoryIterator (RWDirectoryIterator &&it) | |
RWDirectoryIterator & | operator= (const RWDirectoryIterator &) |
RWDirectoryIterator & | operator= (RWDirectoryIterator &&it) |
~RWDirectoryIterator () | |
RWDirectoryIterator & | operator++ () |
RWDirectoryIterator | operator++ (int) |
value_type & | operator* () const |
void | swap (RWDirectoryIterator &it) |
Friends | |
bool | operator== (const RWDirectoryIterator< RWCString > &, const RWDirectoryIterator< RWCString > &) |
bool | operator!= (const RWDirectoryIterator< RWCString > &, const RWDirectoryIterator< RWCString > &) |
The Essential Tools library provides two specializations of the class template: this class, RWDirectoryIterator<RWCString>, for RWCString with recursive iteration of subdirectories; and RWDirectoryIterator<const char*> for const char*
which acts like a flat iterator , i.e. no iteration of subdirectories. Neither follow symbolic links.
Both iterators are refinements of the Input Iterator concept. One limitation is that they are usable only in single-pass algorithms.
The nature of the API for manipulating files and directories requires special attention to synchronization issues. These classes are:
#include <rw/directory.h> RWDirectoryIterator<RWCString> it;
None
typedef RWCString RWDirectoryIterator< RWCString >::value_type |
Typedef for the type on which self is specialized.
RWDirectoryIterator< RWCString >::RWDirectoryIterator | ( | ) |
Constructs an iterator that compares equal with any past-the-end iterator.
RWDirectoryIterator< RWCString >::RWDirectoryIterator | ( | const char * | cs, | |
int | depth = 0 | |||
) | [explicit] |
Constructs an iterator over the content of the directory name passed as argument cs. The depth argument controls how deep to iterate within the directory hierarchy. The default is to behave as a flat iterator. Passing an argument value of -1
iterates to the full depth of the hierarchy.
RWInternalErr | or one of its derived types, thrown if the argument is not a directory. |
RWDirectoryIterator< RWCString >::RWDirectoryIterator | ( | const RWDirectoryIterator< RWCString > & | it | ) |
Constructs an iterator that is a copy of the iterator passed as the argument. Dereferencing each iterator yields identical results, yet they will not compare equal. See the equality comparison operators.
Move constructor. The constructed iterator takes ownership of the data owned by it.
RWDirectoryIterator< RWCString >::~RWDirectoryIterator | ( | ) |
Destroys the object.
value_type& RWDirectoryIterator< RWCString >::operator* | ( | ) | const |
Dereferencing operator. Returns the file name.
RWDirectoryIterator RWDirectoryIterator< RWCString >::operator++ | ( | int | ) |
Postfix increment operator. Returns an iterator that points to the entry previous to the increment operation.
RWDirectoryIterator& RWDirectoryIterator< RWCString >::operator++ | ( | ) |
Prefix increment operator. Returns a reference to this object.
RWDirectoryIterator& RWDirectoryIterator< RWCString >::operator= | ( | RWDirectoryIterator< RWCString > && | it | ) |
Move assignment. Self takes ownership of the data owned by it.
RWDirectoryIterator& RWDirectoryIterator< RWCString >::operator= | ( | const RWDirectoryIterator< RWCString > & | ) |
Assignment operator. Performs the assignment of the value of the argument. Note that the objects will not compare equal unless they are both past-the-end iterators.
Swaps the data owned by self with the data owned by it.
bool operator!= | ( | const RWDirectoryIterator< RWCString > & | , | |
const RWDirectoryIterator< RWCString > & | ||||
) | [friend] |
Inequality operator. Equivalent to logical negation of corresponding equality operator.
bool operator== | ( | const RWDirectoryIterator< RWCString > & | , | |
const RWDirectoryIterator< RWCString > & | ||||
) | [friend] |
Equality operator. Tests equality between the two RWDirectoryIterator<RWCString> objects passed as parameters. Only past-the-end iterators compare equal.
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