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Posted: Wed Jun 25, 2008 12:45 pm
by Polo
Maybe it is because std things and c++ is used I dont know, well I've gotta give up as I think I tried everything
Posted: Wed Jun 25, 2008 1:06 pm
by milan1612
Ok, got it:
Create a Win32 Project, select Static Library and unselect Precompiled Headers
Paste this code into a new .cpp file:
Code: Select all
extern "C" {
int answer() {
return 42;
}
};
Select Release mode
Go to the project settings and:
Set General -> Whole Program Optimization to "No Whole Program Optimization"
Set C/C++ -> Optimization -> Optimization to "Disabled"
Compile the project
Import the library in Purebasic using ImportC
Use it
I have no clue what the problem with your library is Polo, sorry.
I'll try a bigger example and use std::string, if I succeed I'll post it here...
Posted: Thu Jun 26, 2008 4:54 pm
by Polo
Well just to tell it, the code has bo error when using VC++ 6
Seems the problem lies with C++ and VC++8, PellesC linker maybe is not compatible.
Posted: Thu Jun 26, 2008 10:02 pm
by HotteHC
Hi Polo.
Please try to compile the following Sourcecode in VC2008 express.
Turn off the Optimation like Fred said and build as Static Lib in Release Mode.
Code: Select all
#ifdef __cplusplus
extern "C"
{
#endif//__cplusplus
int __stdcall GetInt()
{
return 132;
}
#ifdef __cplusplus
}
#endif//__cplusplus
In PB :
Code: Select all
Import "LibTest.lib"
GetInt.l()
EndImport
Debug GetInt()
End
I can run this code without any Problems.
Posted: Thu Jun 26, 2008 10:13 pm
by Polo
Yes but you're not actually using any C++ code, which is the problem
Here you just have C code in a CPP file
Posted: Thu Jun 26, 2008 10:22 pm
by HotteHC
But wasn't that nearly the same function witch causes Errors when you importet the Lib to PB?
What other codesnippet makes Problems in youre" C++" Code?
Posted: Thu Jun 26, 2008 10:44 pm
by HotteHC
OK.
I tried the following:
Code: Select all
class CTest
{
private :
int tInt;
public:
CTest(){tInt = 132;}
~CTest();
int __stdcall GetInt(){return tInt;}
};
#ifdef __cplusplus
extern "C"
{
#endif//__cplusplus
CTest* __stdcall createTest()
{
return new CTest();
}
int __stdcall GetInt(CTest* test)
{
if (test)
{
return test->GetInt();
}
return 0;
}
/*
void __stdcall deleteTest(CTest* test)
{
if(test)
{
delete test;
}
test = 0;
}
*/
#ifdef __cplusplus
}
#endif//__cplusplus
It sees like there is a Problem with the Destructor!
Without the "deleteTest"-Function everything works fine !?!?
Lets test a littlebit more .