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c++ Programming Glossary: runsCopy a file in an sane, safe and efficient way http://stackoverflow.com/questions/10195343/copy-a-file-in-an-sane-safe-and-efficient-way I moved fread into the condition. It looks like the code runs now 10 000 clocks faster. Measurement changed The former results..
System(“pause”); - Why is it wrong? http://stackoverflow.com/questions/1107705/systempause-why-is-it-wrong see the output of his new program. Bodging in System pause runs the Windows command line pause program and waits for that to..
Why is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array c arraySize c data c std rand 256 With this the next loop runs faster std sort data data arraySize Test clock_t start clock.. sum std endl Without std sort data data arraySize the code runs in 11.54 seconds. With the sorted data the code runs in 1.93.. code runs in 11.54 seconds. With the sorted data the code runs in 1.93 seconds. Initially I thought this might be just a language..
Which I/O library do you use in your C++ code? [closed] http://stackoverflow.com/questions/119098/which-i-o-library-do-you-use-in-your-c-code time error if required . Thus prevent run time memory over runs or writing a float value to a char object etc. scanf printf..
What open source C++ static analysis tools are available? [closed] http://stackoverflow.com/questions/141498/what-open-source-c-static-analysis-tools-are-available and PMD . Those tools are easy to use very helpful runs on multiple operating systems and free . Commercial C static..
How do I get the directory that a program is running from? http://stackoverflow.com/questions/143174/how-do-i-get-the-directory-that-a-program-is-running-from file . It isn't necessarily the same directory if someone runs the program from a command prompt then the program is being..
C++: what regex library should I use? http://stackoverflow.com/questions/181624/c-what-regex-library-should-i-use I'm working on a commercial not open source C project that runs on a linux based system. I need to do some regex within the..
C++ delete - It deletes my objects but I can still access the data? http://stackoverflow.com/questions/1930459/c-delete-it-deletes-my-objects-but-i-can-still-access-the-data 30 b I have a function that scans for a complete line and runs through the linked list of blocks deleting the relevant ones..
Calling class method through NULL class pointer http://stackoverflow.com/questions/2505328/calling-class-method-through-null-class-pointer hello endl int main ABC ptr NULL ptr print return 0 It runs successfully. Can someone explain it c share improve this..
Simple example of threading in C++ http://stackoverflow.com/questions/266168/simple-example-of-threading-in-c cout task1 says msg int main Constructs the new thread and runs it. Does not block execution. thread t1 task1 Hello Makes the..
How do I make a fully statically linked .exe with Visual Studio Express 2005? http://stackoverflow.com/questions/37398/how-do-i-make-a-fully-statically-linked-exe-with-visual-studio-express-2005 nothing but lowest common denominator Win32 operations and runs on any old win32 OS. Does anyone know if its possible to do..
C++ performance challenge: integer to std::string conversion http://stackoverflow.com/questions/4351371/c-performance-challenge-integer-to-stdstring-conversion on desktop computers and demonstrates an approach that runs at full speed on embedded systems as well unlike algorithms.. of the challenge is user434507 who produces code that runs 350 of the speed of my own on gcc. Further entries are closed..
http://stackoverflow.com/questions/5854581/polymorphism-in-c finding and executing type appropriate code . a itself runs code specifically for double and is therefore not polymorphic...
How to generate a stacktrace when my gcc C++ app crashes http://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes My app is being run by many different users and it also runs on Linux Windows and Macintosh all versions are compiled using..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle processor temps hit 76C on the multi threaded run If you runs these be sure the results aren't affected by CPU throttling...
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 above my original while loop above results in code that runs faster than Python. New performance comparison this is on my..
Building a Mac and Windows GUI Application http://stackoverflow.com/questions/11026541/building-a-mac-and-windows-gui-application configuration and dependencies on both Mac and Windows. Runs much faster than Python though performance isn't a large concern..
Problems passing array by reference to threads http://stackoverflow.com/questions/12801862/problems-passing-array-by-reference-to-threads ofstream myfile myfile.open coinToss.csv int rNum long numRuns long count 0 int divisor 1 float holder 0 int counter 0 float.. array1 1000000 int array2 1000000 srand time NULL printf Runs use multiple of 10 cin numRuns for int i 0 i numRuns i _beginthread.. srand time NULL printf Runs use multiple of 10 cin numRuns for int i 0 i numRuns i _beginthread myThread 0 void array1..
c++ 2d array access speed changes based on [a][b] order? [duplicate] http://stackoverflow.com/questions/13093155/c-2d-array-access-speed-changes-based-on-ab-order SIZE row for int col 0 col SIZE col sum1 matrix row col Runs very quickly however is the above line sum1... is modified sum2..
C++ - Play back a tone generated from a sinusoidal wave http://stackoverflow.com/questions/5469030/c-play-back-a-tone-generated-from-a-sinusoidal-wave this question I've written an example exactly for this. Runs fine with OpenAL under MacOSX and plays smooth sines. Take a..
http://stackoverflow.com/questions/735346/cannot-load-c-dll-in-c-sharp Misc.LogToFile Could not load dll true Application.Exit Runs fine on my PC but on VMBox LoadLibrary returns 0. Some users..
Fast multiplication/division by 2 for floats and doubles (C/C++) http://stackoverflow.com/questions/7720668/fast-multiplication-division-by-2-for-floats-and-doubles-c-c operation took timer.elapsed milliseconds return a.exec Runs suggest that D d 1 5 and D d 32 run in the same time 200 ms..
General strategies for memory/speed problems http://stackoverflow.com/questions/8860603/general-strategies-for-memory-speed-problems 0 Source proc.cpp 0 Graph proc.gcno 0 Data proc.gcda 0 Runs 1 0 Programs 1 1 #include 2 #include 4 class Foo 5 6 public..
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