minor refactor in file_storeage and typos

include/libtorrent/aux_/max_path.hpp

@@ -65,4 +65,3 @@ POSSIBILITY OF SUCH DAMAGE.
 #endif // FILENAME_MAX
 
 #endif // TORRENT_MAX_PATH_HPP_INCLUDED
-

include/libtorrent/file_storage.hpp

@@ -379,10 +379,10 @@ namespace libtorrent {
 
 		// returns the index of the one-past-end file in the file storage
 		file_index_t end_file() const
-		{ return file_index_t(int(m_files.size())); }
+		{ return m_files.end_index(); }
 
 		file_index_t last_file() const
-		{ return file_index_t(int(m_files.size()) - 1); }
+		{ return --m_files.end_index(); }
 
 		// returns the total number of bytes all the files in this torrent spans
 		std::int64_t total_size() const { return m_total_size; }

include/libtorrent/settings_pack.hpp

@@ -1430,7 +1430,7 @@ namespace libtorrent {
 			max_metadata_size,
 
 #ifndef TORRENT_NO_DEPRECATE
-			// DEPRECTED: use aio_threads instead
+			// DEPRECATED: use aio_threads instead
 
 			// ``hashing_threads`` is the number of threads to use for piece hash
 			// verification. It defaults to 1. For very high download rates, on

src/storage.cpp

@@ -521,7 +521,7 @@ namespace libtorrent {
 			// short reads as errors
 			ec.operation = storage_error::read;
 
-				// we either get an error or 0 or more bytes read
+			// we either get an error or 0 or more bytes read
 			TORRENT_ASSERT(e || ret >= 0);
 			TORRENT_ASSERT(ret <= bufs_size(vec));
 
@@ -595,7 +595,7 @@ namespace libtorrent {
 			// short reads as errors
 			ec.operation = storage_error::write;
 
-				// we either get an error or 0 or more bytes read
+			// we either get an error or 0 or more bytes read
 			TORRENT_ASSERT(e || ret >= 0);
 			TORRENT_ASSERT(ret <= bufs_size(vec));
 

src/torrent.cpp

@@ -4049,7 +4049,7 @@ namespace libtorrent {
 
 				// the peer implementation can ask not to be disconnected.
 				// this is used for web seeds for instance, to instead of
-				// disconnecting, mark the file as not being haved.
+				// disconnecting, mark the file as not being had.
 				allow_disconnect = peer->received_invalid_data(index, single_peer);
 			}