32bit-64bit

The frequency with which I am coming across the situation where I have to call native 32-bit code from a managed 64-bit process is increasing as 64-bit machines and applications become prevalent. I don't want to mark my applciation as 32-bit and I cannot obtain 64-bit versions of of the code that is being calling. The solution that I currently use is to create C++ COM shims that are loaded out of process to make the 32-bit calls from the 64-bit process. This COM shim solution works well and the cross process calls are handled behind the scenes by COM, which minimises the overhead of this

My computer has 64 bit processor and when I look for sizeof(int) , sizeof(long) , and sizeof(long long) , it turns out that int and long are 32 bits, and long long is 64 bit. I researched the reason, and it appears that popular assumption telling that int in C++ fits machine's word size is wrong. As I understood it is up to compiler to define what will be the size, and mine is Mingw-w64. The reason for my research was understanding that if the usage of types smaller than word size is beneficial for speed(for instance, short vs int ) or if it has negative effect. In 32 bit system, one popular

I am not able to find any command to check if my python is compiled for 32bit system or 64bit system. I tried python and it only tells the version Also when I go to python download site they have one version of python for linux but two versions for mac i.e 32bit and 64bit. Ned Deily For Python 2.6 and above, you can use sys.maxsize as documented here : import sys is_64bits = sys.maxsize > 2**32 UPDATE: I notice that I didn't really answer the question posed. While the above test does accurately tell you whether the interpreter is running in a 32-bit or a 64-bit architecture, it doesn't and can

I am writing a program which if I compile on a Suse 10 32-bit system without adding the -m32 option and execute it on Suse 10 64-bit, it works fine. In this case, is it not required for me to add the -m32 option? Can we execute programs built on 32-bit systems directly on their 64-bit counterparts without any side-effects? Or are there any updates or changes required? There is no problems in running 32 bits executables on 64 bit OS (as long as 32 bit dynamic libraries are present and found). -m32 is there to compile 32 bits objects on a compiler configured to compile 64 bits objects by default

I just need to write a simple batch file just to run a vbscript. Both the vbscript and the batch file are in the same folder and is in the SysWOW64 directory as the vbscript can only be execute in that directory. Currently my batch file is as follows: @echo off %WINDIR%\SysWOW64\cmd.exe cscript necdaily.vbs But the vbscript wasn't executed and just the command prompt is open. Can anyone tell me how can i execute the vbscript when i run this batch file? Thanks. You can use %~dp0 to get the path of the currently running batch file. Edited to change directory to the VBS location before running If