Top "64-bit" questions

A 64-bit architecture is usually a system where addresses (pointers) are 64 bits wide.

How can I choose between 32-bit or 64-bit build in C# Express?

I'm having a problem when I try to build my solution in C# Express 2008. I need to build it for 32…

c# 64-bit 32-bit visual-c#-express-2010
Is it possible to upgrade a portable Python 32 bit install to a 64 bit install?

I've been working on a single program for a few months now, which now requires some additional functionality. Originally, a 32 …

python 64-bit 32-bit
What are the advantages of a 64-bit processor?

Obviously, a 64-bit processor has a 64-bit address space, so you have more than 4 GB of RAM at your disposal. …

64-bit cpu
"Changes to 64-bit applications are not allowed" when debugging in Visual Studio 2008

I'm using Visual Studio 2008, C#. I try to use edit-and-continue (edit the code while debugging), and get this exception: "Changes …

c# visual-studio 64-bit edit-and-continue
Fast computing of log2 for 64-bit integers

A great programming resource, Bit Twiddling Hacks, proposes (here) the following method to compute log2 of a 32-bit integer: #define …

c 64-bit bit-manipulation 32bit-64bit lookup
Using Side-by-Side assemblies to load the x64 or x32 version of a DLL

We have two versions of a managed C++ assembly, one for x86 and one for x64. This assembly is called …

c# .net 64-bit
Check if unmanaged DLL is 32-bit or 64-bit?

How can I programmatically tell in C# if an unmanaged DLL file is x86 or x64?

c# dll 64-bit 32-bit
Difference between 32 and 64 bit Eclipse

I have a quick question about the difference between the 32 and 64 bit version of Eclipse. I need to know what …

java eclipse 64-bit 32-bit
How can I use a single Visual Studio solution to build both x86 and x64 at the same time?

I've got an x86 Visual Studio solution with many project files in it. Some of the DLL files are designed …

visual-studio visual-studio-2008 msbuild 64-bit
Is it advisable to switch from Cygwin 32bit to Cygwin 64bit?

I've been using Cygwin (for a long time). Specifically, I use it (including gcc/g++) on Win7 for development work. …

cygwin 64-bit 32bit-64bit windows-7-x64 transitions