On Thursday 31 July 2008 03:10:24 Noah Roberts wrote:
"Class basic_directory_iterator is an important component of the library. It provides an input iterator over the contents of a directory, with the value type being class basic_path."
That seems to be correct.
It's not, in boost 1.34 (if I remember correctly) boost::filesystem::directory_iterator has become an iterator to directory_iterator_entry values rather than to path values as it was before. Implicit conversion operator to path was added (along with an "explicit" getter like .path()).
"The expression itr->path().leaf() == file_name, in the line commented // see below, calls the leaf() function on the path returned by calling the path() function of the directory_entry object pointed to by the iterator."
But that claims the object pointed to the iterator is something other than basic_path and appears to be quite in error. itr->path() fails to compile.
Exactly. See 1.34/1.35 docs, for example: http://www.boost.org/doc/libs/1_34_1/libs/filesystem/doc/tr2_proposal.html#C... It says: " The result of operator* on an end iterator is not defined. For any other iterator value a const basic_directory_entry<Path>& is returned. The result of operator-> on an end iterator is not defined. For any other iterator value a const basic_directory_entry<Path>* is returned." I do not know why itr->path() fails to compile on your system, maybe you are using boost 1.33 or older.
Documentation is same for both 1.34 and 1.35 - tested on 1.34.
Can you be more explicit (URLs?) where the 1.34/1.35 documentation says that directory_iterator points to a path instead of a directory_iterator_entry? Such statements need correction. Generaly I have used the "reference" documentation for boost filesystem which I do not know to have such problems.
This appears in both the front page and the docs for directory iterator. The find_file function doesn't actually compile if copied verbatim. Need to remove all calls to path() on the iter and replace with "*itr".
You have an older (than 1.34) boost version installed on your system if that does not compile. -- Mihai RUSU Email: dizzy@roedu.net "Linux is obsolete" -- AST