Bad memory allocation (C++)

C++ coding using Panda3D
1

I’ve installed Panda3D under Visual Studio 2005.
Directories are set to:
Include:
D:\Panda3D-1.4.2\include
D:\Panda3D-1.4.2\thirdparty\win-libs-vc8\nspr\include
D:\Panda3D-1.4.2\thirdparty\win-python\include
Libraries:
D:\Panda3D-1.4.2\lib
D:\Panda3D-1.4.2\thirdparty\win-python\libs

Linker->Input: libpanda.lib libpandaexpress.lib libp3framework.lib libp3dtool.lib libp3dtoolconfig.lib
Ignore Specyfic Library: python24_d.lib

C/C++ ->Preprocessor: WIN32;_DEBUG;_CONSOLE;WIN32_VC

#include "pandaFramework.h"
#include "pandaSystem.h"

PandaFramework framework;

int main(int argc, char* argv[]){
	framework.open_framework(argc,argv);
	framework.set_window_title("Hello");
	WindowFramework *window = framework.open_window();

	framework.main_loop();
	framework.close_framework();
	return 0;
}

And when I compile it and run I’m getting this error:
“Unhandled exception at 0x7c81eb33 in ArkanosVC8.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012f75c…”

Which is pointing on this line:

framework.set_window_title("Hello");

When it is commented it works fine, but why there’s an error?
Can someone help me with this? I’m trying to solve this for 2h :[

2

I’m guessing it’s a debug/release build conflict. You have to be sure that all of the DLL’s you link together are the same kind of build: they all have to be debug build, or they all have to be release build.

The Panda convention is the same as the Python convention here: debug build libraries are named _d, for instance, libpanda_d.dll. If you are linking with libpanda.dll, which is a release build, you will need to configure your build as a release build too.

David

3

Thank you very much! :smiley: Now it works fine :slight_smile:

4

Pardon my noobiness, but I’m having the same unhandled exception as j4ck. I understand the concept of debug/release difference, but what I can’t figure out is how to make sure all the dlls are either debug or release. I don’t see any _d.dll files in Panda3D directory.

I’m confused, tips on how to set this up will be greatly appreciated!

Edit: I changed it to release configuration (top menu bar have option for Debug or Release) and it compiled. However when I exit the program, it gives me an unhandled exception:

Unhandled exception at 0x00a6fba7 in PandaCpp2.exe: 0xC0000005: Access violation writing location 0x0000000a.

I wanted to see if Panda works, so I continued with tutorial and ignored this error. When I got to the camera rotation part, the camera doesn’t move. Here’s a screenshot:

i18.photobucket.com/albums/b102/ … assert.jpg

So I think it have to do something with the first error with program exiting.

So my two questions are: How do I compile it under debug configuration, and how do I fix this error? Thanks!

5

If you’re linking against the official Panda build, make sure you are compiling in Release build yourself.

6

I edited my post when you posted yours. I’ll set it to release configuration. Disregard my first question from previous post. Second question still there.

Thanks!

7

You’ll just need to grab the panda source from the download page, and compile it in Debug configuration using the supplied .sln file.

This will help you with that:
panda3d.org/manual/index.php/Tutor … on_Windows