err anyone reconize this: invalid convershion in CDemo.cpp

[Siolis]

67 C:\Documents and Settings\Oliver\Desktop\C++ Work\Irrlicht Game Engine\irrlicht-0.9\examples\Demo\CDemo.cpp invalid conversion from `int' to `const wchar_t*'

Just trying to compile the demo in the tutorials so i can try and edit it however it wont compile due to the above error and i cant find anything which corrects it, it it a commen mistake which can be repared easily or what?

Siolis

PS: Im useing Dev-C++ 4.9.9.2 and all the other examples work fine.

[hybrid]

67 C:\Documents and Settings\Oliver\Desktop\C++ Work\Irrlicht Game Engine\irrlicht-0.9\examples\Demo\CDemo.cpp invalid conversion from `int' to `const wchar_t*'

If you look at the code it's the following

Code: Select all

swprintf(tmp, 255, L"%s fps:%d", driver->getName(), driver->getFPS());

the error tells us that something's converted from int to wchar_t so it could be the case that you're missing the driver->getName() or something similar. This is the original code from version 0.8 so check yours if it fits.

[Siolis]

K ive got two comments to make:

Firstly ive found the function inside of IVideoDriver.h and:

virtual const wchar_t* getName() = 0;

to boot, i dont see how:

swprintf(tmp, 255, L"%s fps:%d", driver->getName(), driver->getFPS());

tries to send it an int, plus the help file says this function returns a pointer so...can anyone send me a working vershion of this dam engine or explain wtf is going on hear?

Im not an experienced programmer, im a designer with programing ability trying to build his own game so try to keep it simple please.

Siolis

[hybrid]

swprintf(tmp, 255, L"%s fps:%d", driver->getName(), driver->getFPS());

tries to send it an int, plus the help file says this function returns a pointer so...can anyone send me a working vershion of this dam engine or explain wtf is going on hear?

I'm not sure if you meant this, but swprintf does not return a string, it returns the numbers of wide characters written to the string. So if you want to access the string afterwards you have to use tmp.

[Electron]

change the swprintf line to _snwprintf. It has to do with some typedefs Irrlicht makes, but this fixes it for MinGW

[Siolis]

[Linker error] undefined reference to `_imp__AdrOpenSound@12'
[Linker error] undefined reference to `_imp__AdrOpenSampleSource@8'
[Linker error] undefined reference to `_imp__AdrOpenSampleSource@8'
ld returned 1 exit status
C:\Documents and Settings\Oliver\Desktop\C++ Work\Irrlicht Game Engine\irrlicht-0.9\examples\Demo\Makefile.win [Build Error] [Demo.exe] Error 1

I think im gonna cry...

Siolis

[mm765]

the demo uses audiere (audio lib)

[hybrid]

change the swprintf line to _snwprintf. It has to do with some typedefs Irrlicht makes, but this fixes it for MinGW

So MingW does not support the usual Linux interface? It seems to be a wide-char enhanced BSD function. Linux does not provide an swprintf without limiting the maximal output length, thus no need to change to a different function. Does anyone know which OS this routine comes from?
But it shouldn't be a problem with typedefs in Irrlicht, probably missing ifdefs though.

[Electron]

I really don't know what MinGW is doing. According to my std library reference, what Irrlicht is doing is in accordance with the swprintf function in cwchar. I just know that changing it to _snwprintf works, at least with an Irrlicht app