X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6d31cf4000a050737bf7917a65a550237a16e123..81c882b613b5d99ddb1e5ab69fcd7ebccc287025:/docs/latex/wx/hashmap.tex diff --git a/docs/latex/wx/hashmap.tex b/docs/latex/wx/hashmap.tex index 5649d907eb..ebb9c60e6a 100644 --- a/docs/latex/wx/hashmap.tex +++ b/docs/latex/wx/hashmap.tex @@ -2,8 +2,8 @@ This is a simple, type-safe, and reasonably efficient hash map class, whose interface is a subset of the interface of STL containers. In -particular, the interface is modelled after std::map, and the various, -non standard, std::hash_map. +particular, the interface is modeled after std::map, and the various, +non-standard, std::hash\_map. \wxheading{Example} @@ -48,7 +48,7 @@ non standard, std::hash_map. CLASSNAME ); // name of the class \end{verbatim} -Declares an hash map class named CLASSNAME, with {\tt wxString} keys +Declares a hash map class named CLASSNAME, with {\tt wxString} keys and VALUE\_T values. \begin{verbatim} @@ -56,7 +56,7 @@ and VALUE\_T values. CLASSNAME ); // name of the class \end{verbatim} -Declares an hash map class named CLASSNAME, with {\tt void*} keys +Declares a hash map class named CLASSNAME, with {\tt void*} keys and VALUE\_T values. \begin{verbatim} @@ -68,7 +68,7 @@ and VALUE\_T values. \end{verbatim} The HASH\_T and KEY\_EQ\_T are the types -used for the hashing function and key comparison. wxWindows provides +used for the hashing function and key comparison. wxWidgets provides three predefined hashing functions: {\tt wxIntegerHash} for integer types ( {\tt int}, {\tt long}, {\tt short}, and their unsigned counterparts ), {\tt wxStringHash} for strings @@ -77,7 +77,7 @@ and their unsigned counterparts ), {\tt wxStringHash} for strings Similarly three equality predicates: {\tt wxIntegerEqual}, {\tt wxStringEqual}, {\tt wxPointerEqual} are provided. -Using this you could declare an hash map mapping {\tt int} values +Using this you could declare a hash map mapping {\tt int} values to {\tt wxString} like this: \begin{verbatim} @@ -130,11 +130,13 @@ you used in the class declaration. \twocolitem{wxHashMap::mapped\_type}{Type of the values stored in the hash map} \twocolitem{wxHashMap::value\_type}{Equivalent to {\tt struct \{ key\_type first; mapped\_type second \};} } -\twocolitem{wxHashMap::iterator}{Used to enumerate all the elements in an hash +\twocolitem{wxHashMap::iterator}{Used to enumerate all the elements in a hash map; it is similar to a {\tt value\_type*}} \twocolitem{wxHashMap::const\_iterator}{Used to enumerate all the elements in a constant hash map; it is similar to a {\tt const value\_type*}} \twocolitem{wxHashMap::size\_type}{Used for sizes} +\twocolitem{wxHashMap::Insert\_Result}{The return value for +\helpref{insert()}{wxhashmapinsert}} \end{twocollist} \wxheading{Iterators} @@ -152,18 +154,18 @@ means that you can't use {\tt --it}, {\tt it + 3}, {\tt it1 - it2}. \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxHashMap::wxHashMap} +\membersection{wxHashMap::wxHashMap}\label{wxhashmapctor} \func{}{wxHashMap}{\param{size\_type}{ size = 10}} -The size parameter is just an hint, the table will resize automatically +The size parameter is just a hint, the table will resize automatically to preserve performance. \func{}{wxHashMap}{\param{const wxHashMap\&}{ map}} Copy constructor. -\membersection{wxHashMap::begin} +\membersection{wxHashMap::begin}\label{wxhashmapbegin} \constfunc{const\_iterator}{begin}{} @@ -172,26 +174,26 @@ Copy constructor. Returns an iterator pointing at the first element of the hash map. Please remember that hash maps do not guarantee ordering. -\membersection{wxHashMap::clear} +\membersection{wxHashMap::clear}\label{wxhashmapclear} \func{void}{clear}{} Removes all elements from the hash map. -\membersection{wxHashMap::count} +\membersection{wxHashMap::count}\label{wxhashmapcount} \constfunc{size\_type}{count}{\param{const key\_type\&}{ key}} Counts the number of elements with the given key present in the map. -This function can actually return 0 or 1. +This function returns only 0 or 1. -\membersection{wxHashMap::empty} +\membersection{wxHashMap::empty}\label{wxhashmapempty} \constfunc{bool}{empty}{} -Returns true if the hash map does not contain any element, false otherwise. +Returns true if the hash map does not contain any elements, false otherwise. -\membersection{wxHashMap::end} +\membersection{wxHashMap::end}\label{wxhashmapend} \constfunc{const\_iterator}{end}{} @@ -200,11 +202,11 @@ Returns true if the hash map does not contain any element, false otherwise. Returns an iterator pointing at the one-after-the-last element of the hash map. Please remember that hash maps do not guarantee ordering. -\membersection{wxHashMap::erase} +\membersection{wxHashMap::erase}\label{wxhashmaperase} \func{size\_type}{erase}{\param{const key\_type\&}{ key}} -Erases the element with the given key, and returns the number of element +Erases the element with the given key, and returns the number of elements erased (either 0 or 1). \func{void}{erase}{\param{iterator}{ it}} @@ -214,7 +216,7 @@ erased (either 0 or 1). Erases the element pointed to by the iterator. After the deletion the iterator is no longer valid and must not be used. -\membersection{wxHashMap::find} +\membersection{wxHashMap::find}\label{wxhashmapfind} \func{iterator}{find}{\param{const key\_type\&}{ key}} @@ -224,23 +226,26 @@ If an element with the given key is present, the functions returns an iterator pointing at that element, otherwise an invalid iterator is returned (i.e. hashmap.find( non\_existent\_key ) == hashmap.end()). -\membersection{wxHashMap::insert} +\membersection{wxHashMap::insert}\label{wxhashmapinsert} -\func{void}{insert}{\param{const value\_type\&}{ v}} +\func{Insert\_Result}{insert}{\param{const value\_type\&}{ v}} -Inserts the given value in the hash map. +Inserts the given value in the hash map. The return value is +equivalent to a \texttt{std::pair}; +the iterator points to the inserted element, the boolean value +is \texttt{true} if \texttt{v} was actually inserted. -\membersection{wxHashMap::operator[]} +\membersection{wxHashMap::operator[]}\label{wxhashmapbracket} \func{mapped\_type\&}{operator[]}{\param{const key\_type\&}{ key}} -Use it as an array subscript. The only difference is that if the +Use the key as an array subscript. The only difference is that if the given key is not present in the hash map, an element with the default {\tt value\_type()} is inserted in the table. -\membersection{wxHashMap::size} +\membersection{wxHashMap::size}\label{wxhashmapsize} \constfunc{size\_type}{size}{} -Returns the numbers of elements in the map. +Returns the number of elements in the map.