This commit was manufactured by cvs2svn to create tag

'DEBIAN_2_4_3_1_SARGE_v_2_4_2_4'.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/DEBIAN_2_4_3_1_SARGE_v_2_4_2_4@34395 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Bryan Petty
2005-05-29 09:56:16 +00:00
parent 86118733af
commit cfd794784f
4010 changed files with 349688 additions and 169530 deletions

View File

@@ -1,7 +1,9 @@
\section{\class{wxHashMap}}\label{wxhashmap}
This is a simple, type-safe, and reasonably efficient hash map class,
whose interface is a subset of the interface of STL containers.
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.
\wxheading{Example}
@@ -27,7 +29,7 @@ whose interface is a subset of the interface of STL containers.
h2["Bill"] = "ABC";
wxString tmp = h2["Bill"];
// since element with key "Joe" is not present, this will return
// the default value, that is an empty string in the case of wxString
// the default value, which is an empty string in the case of wxString
MyClass tmp2 = h2["Joe"];
// iterate over all the elements in the class
@@ -66,7 +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
@@ -84,6 +86,38 @@ to {\tt wxString} like this:
wxIntegerHash,
wxIntegerEqual,
MyHash );
// using an user-defined class for keys
class MyKey { /* ... */ };
// hashing function
class MyKeyHash
{
public:
MyKeyHash() { }
unsigned long operator()( const MyKey& k ) const
{ /* compute the hash */ }
MyKeyHash& operator=(const MyKeyHash&) { return *this; }
};
// comparison operator
class MyKeyEqual
{
public:
MyKeyEqual() { }
bool operator()( const MyKey& a, const MyKey& b ) const
{ /* compare for equality */ }
MyKeyEqual& operator=(const MyKeyEqual&) { return *this; }
};
WX_DECLARE_HASH_MAP( MyKey, // type of the keys
SOME_TYPE, // any type you like
MyKeyHash, // hasher
MyKeyEqual, // key equality predicate
CLASSNAME); // name of the class
\end{verbatim}
\latexignore{\rtfignore{\wxheading{Types}}}