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c++ Programming Glossary: architectures

Is < faster than <=? [closed]

http://stackoverflow.com/questions/12135518/is-faster-than

improve this question No it will not be faster on most architectures. You didn't specify but on x86 all of the integral comparisons..

What is “cache-friendly” code?

http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code

improve this question Preliminaries Modern computer architectures feature complex memory hierarchies registers typically several.. takes only a handful of cycles. In modern computer architectures the performance bottleneck is leaving the CPU die e.g. accessing.. can be much larger. Avoid unpredictable branches Modern architectures feature pipelines and compilers are becoming very good at reordering..

Difference between float and double

http://stackoverflow.com/questions/2386772/difference-between-float-and-double

as IEEE double precision. Nevertheless for most architectures gcc MSVC x86 x64 ARM float is indeed a IEEE single precision..

Performance of built-in types : char vs short vs int vs. float vs. double

http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double

on modern CPUs but this varies quite a bit between architectures. Also remember that you can't consider the speed of a CPU in..

Operator Precedence vs Order of Evaluation

http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation

point. Edit though it's not exactly threading some architectures do allow such parallel execution. For a couple of examples the.. in parallel just like if you used multiple threads on architectures with which most of us are more familiar. Summary Order of evaluation..

size of int, long, etc

http://stackoverflow.com/questions/589575/size-of-int-long-etc

float and other types I didn't think of under different architectures and compilers. c c faq share improve this question The..

C++: Pointer to class data member

http://stackoverflow.com/questions/670734/c-pointer-to-class-data-member

data. Pointer to member functions can be used in pluggable architectures but once again producing an example in a small space defeats..

Exotic architectures the standards committees care about

http://stackoverflow.com/questions/6971886/exotic-architectures-the-standards-committees-care-about

architectures the standards committees care about I know that the C and C.. its own unique specification. However I don't know of any architectures used today where CHAR_BIT 8 signed is not two's complement I.. any specific architecture myself. So the question is what architectures exhibit the above properties uint _t s are optional. c c architecture..

Why would one replace default new and delete operators?

http://stackoverflow.com/questions/7149461/why-would-one-replace-default-new-and-delete-operators

for suboptimal memory alignment in new Many computer architectures require that data of particular types be placed in memory at.. can lead to hardware exceptions at run time. Other architectures are more forgiving and may allow it to work though reducing..

Fast Cross-Platform C/C++ Image Processing Libraries

http://stackoverflow.com/questions/796364/fast-cross-platform-c-c-image-processing-libraries

directly. IPP was designed with high performance on Intel architectures as a goal. It is optimized to use the intel SIMD instructions...

how to achieve 4 FLOPs per cycle

http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle

if grouped in 3's it suddenly works like magic. Other architectures possibly Sandy Bridge and others appear to be able to execute..

Why is one loop so much slower than two loops?

http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops

interesting to point out the differences between CPU cache architectures by providing a similar graph for these CPUs. PPS The full code..

Memcached on Windows (x64)

http://stackoverflow.com/questions/8896/memcached-on-windows-x64

least because of the intricate differences in 32 and 64bit architectures but I'm wondering if anyone is workng on getting this off the..