32-bit

I am currently running Windows 7 Home 64-bit and am working on a program that I would like to make available for both 32-bit and 64-bit Windows operating systems. When I use cx_Freeze to turn my .py to a .exe, it only allows it to be installed on 64-bit operating systems. Would I need to buy a 32-bit computer to convert it to a 32-bit program or are there a special set of commands I can use to make cx_Freeze create both a 32-bit and a 64-bit exe? from cx_Freeze import * import sys base = None if sys.platform == 'win32': base = "Win32GUI" executables = [Executable("iNTMI.py", shortcutName =

Can 64 bit library work in a 32 bit application? For example, my application GUI uses 32 bit Qt. And my business core is a 64 bit library. The OS is 64 bit. Can they work together and how? Thanks. In short: You can't link a 32-bit app to a 64-bit library. You can run a 32-bit application, using 32-bit shared libraries on a 64-bit OS (at least all the popular 32-/64-bit processors such as AMD, Intel and Sparc). But that doesn't involve any libraries. Longer answer: I was involved (on the outskirts) of some of the teams that designed the 64-bit Linux kernel for x86. There were briefly (compared

I like to know how programs work so to make it as bare bones as possible I fool around with assembly. I just found out how to assemble code for x86_64 using wprintf function (found out wide chars are 32 bit). all I had to do was link to libc (-lc). I'm trying to assemble code for 32-bit doing about the same thing but I stumbled quite a bit. Eventually I used gcc to do the linking ( and changed the _start: to main:). So then I did the linking myself using ld and included crt1.o crti.o and crtn.o. Then my program worked ( it wouldn't print out anything before ) So my question is, can I do

Could anyone tell me please what is an efficient algorithm to count the number of leading zeroes in a 32-bit unsigned integer in C programming? This discussion assumes that your compiler either doesn't support the operation or that it doesn't produce good enough assembly. Note that both of these are unlikely nowadays so I'd recommend just using __builtin_clz for gcc or equivalent on your compiler. Note that determining which is the "best" clz algo can only be done by you. Modern processors are complicated beasts and the performance of these algorithm will heavily depend on the platform you run

In an application I maintain, we've encountered a problem with file descriptor limitations affecting the stdlib. This problem only affects the 32-bit version of the standard lib. I have devised a fix for my code and would like to implement it, but only when compiling for 32-bit executable. What pre-processor symbol can I #ifdef for to determine whether the code is being compiled for a 32 or 64-bit target? EDIT Sorry, didn't mention, the code is cross-platform, linux, windows, solaris and a few other unix flavors, mostly using GCC for compilation. Any de-facto standards I can use cross-platform