我正在編寫一些利用boost文件系統庫的代碼。下面是我的代碼的摘錄:Boost Filesystem編譯錯誤
artist = (this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) ? (*(paths_iterator->parent_path().end() - 1)) : (*(paths_iterator->parent_path().end() - 2));
album = (this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) ? "" : (*(paths_iterator->parent_path().end() - 1));
類型:
artist and album are of type std::string this->find_diff returns an int this->m_input_path is a std::string paths_iterator is of type std::vector(open bracket)boost::filesystem::path>::iterator
我得到一個編譯錯誤:
error C2039: 'advance' : is not a member of 'boost::filesystem::basic_path<String,Traits>::iterator' d:\development\libraries\boost\boost\iterator\iterator_facade.hpp on line 546
此代碼是輸出一個批處理腳本程序的一部分使用lame.exe將文件轉換爲mp3。 這是專爲音樂庫的格式爲:
根/歌手/歌曲
OR
根/藝術家/專輯/歌曲
這個 - > m_input_path是通向根。
我不知道我是否正確地接近問題。如果我是,我該如何解決我所得到的錯誤?
編輯:
我的代碼是現在:
boost::filesystem::path::iterator end_path_itr = paths_iterator->parent_path().end();
if(this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) /* For cases where: /root/artist/song */
{
album = "";
end_path_itr--;
artist = *end_path_itr;
}
else /* For cases where: /root/artist/album/song */
{
end_path_itr--;
album = *end_path_itr;
end_path_itr--; <-- Crash Here
artist = *end_path_itr;
}
的錯誤,我現在得到的是:
Assertion failed: itr.m_pos && "basic_path::iterator decrement pat begin()", file ... boost\filesystem\path.hpp, line 1444
您正在使用哪種版本的boost? – 2009-12-21 03:39:01
Boost 1.41.0 - 15char – 2009-12-21 03:40:25