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c++ Programming Glossary: speedBest open XML parser for C++ [closed] http://stackoverflow.com/questions/170686/best-open-xml-parser-for-c and its source code is freely available. Features Parsing speed including DOM tree building approaching speed of strlen function.. Parsing speed including DOM tree building approaching speed of strlen function executed on the same data. On a modern CPU..
Which, if any, C++ compilers do tail-recursion optimization? http://stackoverflow.com/questions/34125/which-if-any-c-compilers-do-tail-recursion-optimization is straightforward Just switch on optimization for speed. But you do that anyway right For MSVC use O2 or Ox. For GCC..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c be expensive since the compiler can do some cleverness to speed things up. So let's try a different example using our File class...
How can I add reflection to a C++ application? http://stackoverflow.com/questions/41453/how-can-i-add-reflection-to-a-c-application names base classes and everything it needs. C is made with speed in mind. If you want high level inspection like C# or Java has..
C++: Pointer to class data member http://stackoverflow.com/questions/670734/c-pointer-to-class-data-member code snippet which compiles fine class Car public int speed int main int Car pSpeed Car speed return 0 Why does C have this.. class Car public int speed int main int Car pSpeed Car speed return 0 Why does C have this pointer to a non static data member.. #include iostream using namespace std class Car public int speed int main int Car pSpeed Car speed Car c1 c1.speed 1 direct access..
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 is executed 10 000 times via another outer for loop. To speed it up I changed the code to for int j 0 j n j a1 j b1 j for..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python in sec seconds. if sec 0 lps line_count sec cerr Crunch speed lps endl else cerr endl return 0 Compiled with g O3 o readline_test_cpp.. . readline_test_cpp Saw 5570000 lines in 9 seconds. Crunch speed 618889 cat test_lines . readline_test.py Read 5570000 lines.. 29 28 EST 2012 CPP Saw 5570001 lines in 9 seconds. Crunch speed 618889 Python Read 5 570 000 lines in 1 seconds. LPS 5 570 000..
Passing shared pointers as arguments http://stackoverflow.com/questions/10826541/passing-shared-pointers-as-arguments So pass by value. Good point. I must remember that Want Speed Pass by Value. article more often. Wait what if the function..
What are the advantages of using more then 1 code file for a project? (C++) [closed] http://stackoverflow.com/questions/15580539/what-are-the-advantages-of-using-more-then-1-code-file-for-a-project-c advantages the most significant of which are the following Speed up compilation most compilers work on a file at a time. So if..
How to properly rotate a quaternion along all axis? http://stackoverflow.com/questions/16384571/how-to-properly-rotate-a-quaternion-along-all-axis responsible to rotate the camera. The parameters Mouse and Speed pass the mouse movement and rotation speed. Then the function.. and functions come from. void Rotate vec2 Mouse float Speed btTransform transform camera getWorldTransform btQuaternion.. btQuaternion rotation transform.getRotation Mouse Mouse Speed apply mouse sensitivity btQuaternion change Mouse.y Mouse.x..
When is overloading pass by reference (l-value and r-value) preferred to pass-by-value? http://stackoverflow.com/questions/18303287/when-is-overloading-pass-by-reference-l-value-and-r-value-preferred-to-pass-by
Benchmarks used to test a C and C++ allocator? http://stackoverflow.com/questions/2560114/benchmarks-used-to-test-a-c-and-c-allocator satisfying any of the following aspects are considered Speed Fragmentation Concurrency Thanks c c memory memory allocation..
Multithreaded image processing in C++ http://stackoverflow.com/questions/326487/multithreaded-image-processing-in-c in the array. The ouput is only written once per pixel. Speed is also important of course but optimize executable size takes..
Fastest JSON reader/writer for C++ [closed] http://stackoverflow.com/questions/3512650/fastest-json-reader-writer-for-c reader writer for C closed I need a C JSON parser writer. Speed and reliability are very critical I don't care if the interface..
http://stackoverflow.com/questions/4293385/thrift-vs-protocol-buffers but it does offer a lite which is significantly smaller . Speed wise they both seem to be similar. I'm not quite ready to take..
What is the best way to create a sparse array in C++? http://stackoverflow.com/questions/4306/what-is-the-best-way-to-create-a-sparse-array-in-c to store entries. Does anyone know of a better system EDIT Speed is a huge priority. EDIT2 I like that solution. How would I..
http://stackoverflow.com/questions/4340396/does-the-c-standard-mandate-poor-performance-for-iostreams-or-am-i-just-deali relevant to your question is in Section 6.1.2 Execution Speed Since certain aspects of IOStreams processing are distributed..
What is the difference between the /Ox and /O2 compiler options? http://stackoverflow.com/questions/5063334/what-is-the-difference-between-the-ox-and-o2-compiler-options section caught my eye In general specify O2 Maximize Speed instead of Ox . So my question is why should one generally favor..
Fastest method of screen capturing http://stackoverflow.com/questions/5069104/fastest-method-of-screen-capturing this and if there are which incurs the least overhead Speed is a priority. The screencasting program will be for recording..
Get Rotation Speed of Disk Sample Code http://stackoverflow.com/questions/5814371/get-rotation-speed-of-disk-sample-code Rotation Speed of Disk Sample Code Im not really good at VC but does anyone.. Vista. I think it is testing NV_FEATURE_PARAMETER's NVReadSpeed and NVWrtSpeed values. Windows 7 detects SSDs by using ATA8.. it is testing NV_FEATURE_PARAMETER's NVReadSpeed and NVWrtSpeed values. Windows 7 detects SSDs by using ATA8 ACS identify word..
Speed difference between If-Else and Ternary operator in C…? http://stackoverflow.com/questions/6754454/speed-difference-between-if-else-and-ternary-operator-in-c difference between If Else and Ternary operator in C&hellip..
Speed of accessing local vs. global variables in gcc/g++ at different optimization levels http://stackoverflow.com/questions/7241035/speed-of-accessing-local-vs-global-variables-in-gcc-g-at-different-optimizati of accessing local vs. global variables in gcc g at different..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python scanf s s s n input_a input_b input_c EOF line_count Speed cat test_lines . readline_test_cpp2 Saw 10000000 lines in 3..
Why is splitting a string slower in C++ than Python? http://stackoverflow.com/questions/9378500/why-is-splitting-a-string-slower-in-c-than-python end '' if delta_sec 0 lps int count delta_sec print Crunch Speed 0 .format lps else print '' C Code #include iostream #include.. 0.38 sys Python Saw 20000000 lines in 15 seconds. Crunch Speed 1333333 usr bin time cat test_lines_double . split1 23.50 real.. 0.40 sys Python Saw 20000000 lines in 22 seconds. Crunch Speed 909090 I still am surprised that even if Python is so optimized..
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