C++ Community News Forum - STLSoft libraries v1.9.1 beta 1 released

Articles |
News |
Weblogs |
Books |
Forums

Artima Forums | Articles | Weblogs | Java Answers | News

Sponsored Link •

C++ Community News Forum
STLSoft libraries v1.9.1 beta 1 released

0 replies on 1 page.

Welcome Guest
Sign In

Back to Topic List

Reply to this Topic

Search Forum

Threaded View


Previous Topic		Next Topic

Flat View: This topic has 0 replies on 1 page

Matthew Wilson

Posts: 145
Nickname: bigboy
Registered: Jun, 2004

STLSoft libraries v1.9.1 beta 1 released

Posted: Dec 20, 2005 9:09 AM

Summary
This is a beta preview of version 1.9.1 of the STLSoft libraries, incorporating a considerable number of changes from the 1.8.x versions. Notable new additions are STL-compatible adaptors for MFC CArrays, new iterator classes, and dl_call(): extremely powerful Dynamic Library Function invocation for UNIX and Windows.

There are lots of bug fixes, changes to the directory structures, enhanced unit-tests, and so on. The new additions are:

stlsoft::ostream_iterator, offering enhanced functionality over std::ostream_iterator
stlsoft::transform_iterator
COMSTL stream functions
MFCSTL CArray class and instance adaptors
PlatformSTL environment_map
WinSTL console functions

and, the most interesting, the introduction of:

dl_call()

dl_call() allows dynamic library functions to be invoked in a natural, single-statement form. It is efficient, it supports between 0 and 32 parameters, it is exception-safe, it uses compile-time constraints to ensure that arguments are of POD types, it handles different calling conventions. A dynamic function is invoked by passing the library identifier, the function identifier and all the arguments that you would use to invoke the function if it was statically linked. For example, invoking the Win32 function EnumProcesses() by static linking would look like the following:


DWORD  pids[100];


DWORD  cbRetrieved;


BOOL   bSuccess = ::EnumProcesses(&pids[0], sizeof(pids), &cbRetrieved);

EnumProcesses() has the stdcall calling convention, and resides in PSAPI.DLL. To invoke it dynamically, using dl_call(), would be as follows:


DWORD  pids[100];


DWORD  cbRetrieved;


BOOL   bSuccess = winstl::dl_call("PSAPI", "stdcall:EnumProcesses", &pids[0], sizeof(pids), &cbRetrieved);

or:


DWORD  pids[100];


DWORD  cbRetrieved;


HINSTANCE hinst = ::LoadLibrary("PSAPI.DLL");


BOOL   bSuccess = winstl::dl_call(hinst, "stdcall:EnumProcesses", &pids[0], sizeof(pids), &cbRetrieved);

It is flexible, since it allows the library identifier to be an HINSTANCE or any string type (e.g. char const*, std::string, etc.), and the function identifier to be any string type.

Download the all these goodies and more at http://stlsoft.org/downloads.html#stlsoft_1_9_1b1

Previous Topic

Next Topic


	Web Artima.com