OP is posted the solution along with the question itself. But I feel it would be better to add it as an answer. In Xcode 5.1 apple made significant changes to the architecture section. They made arm64 as part of Standard architectures. That means the projects using the default setting will be automatically build for … Read more
Ultimately I was able to get pip running. In a nutshell (and redundant from info above) here is what I did to intall 64-bit packages for python 3.3: 1) Installed Microsoft Visual C++ 2010 Express Download Here (http://www.visualstudio.com/downloads/download-visual-studio-vs) 2) Installed Microsoft SDK 7.1 (Windows 7) (http://www.microsoft.com/en-us/download/details.aspx?id=8279) 3) Built/enabled the 64-bit tools in SDK. Go to … Read more
Because it doesn’t have to be. The C++ standard only requires that it is (if memory serves) at least 32 bits wide, and at least as big as int. MSVC (and the ABI used by Windows) defines long to be 32 bits wide, and MingW follows suit because well, the compiler is a lot more … Read more
I think the safest way is to box them into NSNumber instances. NSLog(@”Number is %@”, @(number)); // use the highest level of abstraction This boxing doesn’t usually have to create a new object thanks to tagged pointer magic. If you really don’t want to use NSNumber, you can cast primitive types manually, as others suggested: … Read more
MSDN states: Interprocess Communication Between 32-bit and 64-bit Applications 64-bit versions of Windows use 32-bit handles for interoperability. When sharing a handle between 32-bit and 64-bit applications, only the lower 32 bits are significant, so it is safe to truncate the handle (when passing it from 64-bit to 32-bit) or sign-extend the handle (when passing … Read more
Actually there’s 2 main reasons that the default project type for WPF applications is x86. Intellitrace debugging only works with x86 and that would look pretty bad if the default project templates didn’t work with one of their star features. Many developers were still not aware of the fact that their AnyCPU exe’s would run … Read more
If you are storing the value (128-bits) using the largest possible native representation your architecture can handle (64-bits) you will have problems handling the intermediate results of the division (as you already found 🙂 ). But you always can use a SMALLER representation. What about FOUR numbers of 32-bits? This way you could use the … Read more
My previous version, while not false, was a quickly written oversimplification. Changing from 32 to 64 bits will not automatically make your application run faster, it may in some cases lead to the opposite. On the “negative” side Doing de-referencing of memory pointers in the JVM can take a longer time with 64 bit pointers … Read more
See this CodeCentral article: Using more than 3 GB memory in a 32 bit Delphi program. In modern Delphi versions just add compiler directive to the dpr: {$SetPEFlags IMAGE_FILE_LARGE_ADDRESS_AWARE}
From: http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#64bit_performance “Generally, the benefits of being able to address larger amounts of memory come with a small performance loss in 64-bit VMs versus running the same application on a 32-bit VM. This is due to the fact that every native pointer in the system takes up 8 bytes instead of 4. The loading of … Read more