c++ Programming Glossary: cachedC++ TR1: how to use the normal_distribution? http://stackoverflow.com/questions/1118482/c-tr1-how-to-use-the-normal-distribution eng eng.seed 1000 Mydist dist 1 10 dist.reset discard any cached values for int i 0 i 10 i std cout a random value int dist..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code in the near future. Ideally this information will still be cached at that point. Spatial locality this refers to placing related.. e.g. changing column index first in c M 0 0 memory M 0 1 cached M 1 0 memory M 1 1 cached 1 2 3 4 2 cache hits 2 memory accesses.. first in c M 0 0 memory M 0 1 cached M 1 0 memory M 1 1 cached 1 2 3 4 2 cache hits 2 memory accesses Not exploiting the ordering..
Why isn't C/C++'s “#pragma once” an ISO standard? http://stackoverflow.com/questions/1695807/why-isnt-c-cs-pragma-once-an-iso-standard compiler writers. Obviously the results of this could be cached but the same is true for conventional include guards. Conventional..
LRU implementation in production code http://stackoverflow.com/questions/2057424/lru-implementation-in-production-code LRU cache replacement Using timeStamp for each time the cached data is accessed and finally comparing the timeStamps at time.. the timeStamps at time of replacement. Using a stack of cached items and moving them to the top if they are accessed recently..
What is the difference between these declarations in C? http://stackoverflow.com/questions/232472/what-is-the-difference-between-these-declarations-in-c always be reloaded from memory i.e. it should NOT be cached in a register. This prevents the compiler from making certain..
How to speed up my sparse matrix solver? http://stackoverflow.com/questions/2388196/how-to-speed-up-my-sparse-matrix-solver CPU's L3 cache which is 8 MB . Assuming that nothing is cached in registers I count 15 memory accesses in the inner loop body...
C/C++ function definitions without assembly http://stackoverflow.com/questions/2442966/c-c-function-definitions-without-assembly there. But to prevent link rotting here is the content cached. First Steps We 耱l of course start with the prototype for printf..
Atomicity in C++ : Myth or Reality http://stackoverflow.com/questions/5002046/atomicity-in-c-myth-or-reality quadword aligned on a 64 bit boundary 16 bit accesses to uncached memory locations that fit within a 32 bit data bus The P6 family.. out atomically Unaligned 16 32 and 64 bit accesses to cached memory that fit within a cache line This document also have..
std::istream_iterator<> with copy_n() and friends http://stackoverflow.com/questions/5074122/stdistream-iterator-with-copy-n-and-friends in the algorithm is a read ahead yielding the value cached from the previous read. The latest draft of the next standard..
Can I force cache coherency on a multicore x86 CPU? http://stackoverflow.com/questions/558848/can-i-force-cache-coherency-on-a-multicore-x86-cpu threads were looking at the same variable and the local cached value for this variable on each core was out of sync. I know..
Accessing Firefox cache from an XPCOM component http://stackoverflow.com/questions/61453/accessing-firefox-cache-from-an-xpcom-component component Does anybody know how to get local path of file cached by Firefox based on its URL from an XPCOM component c firefox.. xpcom gecko share improve this question To access cached items new cache session must be created using createSession..
Why does a C/C++ program often have optimization turned off in debug mode? http://stackoverflow.com/questions/69250/why-does-a-c-c-program-often-have-optimization-turned-off-in-debug-mode moved to a register No I O Update memory access might be cached not necessarily compiler optimization related In all these cases..
Hoisting the dynamic type out of a loop (a.k.a. doing Java the C++ way) http://stackoverflow.com/questions/7451442/hoisting-the-dynamic-type-out-of-a-loop-a-k-a-doing-java-the-c-way answer the question. No the address of the function is not cached for re use. It is looked up each time through the loop. Source..
What are the semantics of a const member function? http://stackoverflow.com/questions/98705/what-are-the-semantics-of-a-const-member-function it would return the same value and thus could reuse a cached value if it was available. e.g. class object int get_value int.. constexpr return a constant value so the results can be cached. There are limits on what you can do in such a function in order..
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