cannot find malloc.h and ansi_c.h

[raghar]

Hi,

I am developing a parser in labwindows environment. My parser needs malloc.h and ansi_c.h, which are not referenced in /include directory of mesurement studio directory. Please can anyone tell me, is there any alternate files coded for malloc.h and ansi_c.h or should i refer to different directory

Thank u,

Raghavendra

[JonathanN]

Howdy Raghavendra,

You didn't mention what version of LabWindows/CVI you were using but since you mentioned Measurement Studio, I am assuming LabWindows/CVI 6.0.  LabWindows/CVI is an ANSI C compiler which means that it comes with the standard C library that includes standard C header files. The malloc.h header file is not one of those standard header files. The malloc.h header file is associated with the Microsoft C Run-Time Libraries (CRT).  You can find copies of this header file in the Microsoft Visual C++ directories if you have those IDE's installed. For example, you will find this header file in locations such as <Program Files>\Microsoft Visual Studio 8\VC\include, <Program Files>\Microsoft Visual Studio\VC98\Include, <Program Files>\Microsoft Visual Studio .NET 2003\Vc7\include.  Find out more about the C standard libraries here.

As far as the ansi_c.h header file, it should be located in the <CVI>\include\ directory.  This directory is valid for CVI 6.0, 7.x, and 8.x.  By default, this include directory is searched by LabWindows/CVI as one of its include search paths.  See if you can run any of our examples that use that header file. 

Hope this helps!

Best Regards,

[Al_S]

What do you need from malloc.h?

The CVI ANSI C library includes the following memory management functions in stdlib.h: calloc, free, malloc, and realloc.

[Dsandoval72]

Hi,

I have a CVI dll (let's call it MyCVIdll) and I'm trying to use in it some functions from another dll created in Visual C++ (let's call this dll "VCdll"). I included VCdll.h in my MyCVIdll project as well as VCdll.lib. Since VCdll uses GTK and its associated glib.h, when I try to compile, CVI asks for a couple of GTK header files and I added the corresponding folders in the CVI Include Paths.

Everything goes fine and then one of this GTK headers (galloca.h) asks for malloc.h so I included also "C:\Program Files\Microsoft Visual Studio 8\VC\include" to the CVI include paths since malloc.h is there. But then I got several syntax errors in crtdefs.h (which looks like it's needed by malloc.h and is also in Visual Studio 8\VC\include).

I manually set #define _MSC_VER 1400 in MyCVIdll.h.

Does somebody know why this is happening? Should I manually add another #define somewhere? Actually this can be easily replicated in any CVI dll project, just add "C:\Program Files\Microsoft Visual Studio 8\VC\include" to the CVI include path (options->environment->include paths), try to compile the project and you'll get several syntax errors in crtdefs.h. How to avoid those errors?

Environment: LabWindows CVI 8.1 and MS Visual Studio 2005

Thanks a lot for your help,

Delfino

[rjohnson]

you'll have better luck getting an answer if you create a new thread for your new topic, rather than tag onto an old, out-of-date thread.

--rj

[ManuelR]

Hello,

Please look your answer here :

http://forums.ni.com/ni/board/message?board.id=180&message.id=29266#M29266

Regards.