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c++ Programming Glossary: testWhy 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 GCC can generate In other words ICC took advantage of the test loop to defeat the benchmark... If you give the Intel Compiler..
strange output in comparison of float with float literal http://stackoverflow.com/questions/1839422/strange-output-in-comparison-of-float-with-float-literal Michael suggested in the comments below you should never test for exact equality of floating point values. share improve..
Is it possible to write a C++ template to check for a function's existence? http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence struct Hello int helloworld return 0 struct Generic SFINAE test template typename T class has_helloworld typedef char one typedef.. char one typedef long two template typename C static one test typeof C helloworld template typename C static two test ..... test typeof C helloworld template typename C static two test ... public enum value sizeof test T 0 sizeof char int main int..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom in the code as n . The first is the self assignment test. This check serves two purposes it's an easy way to prevent..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers private template typename C static char test typename C const_iterator template typename C static int test.. typename C const_iterator template typename C static int test ... public static const bool value sizeof test T 0 sizeof char.. static int test ... public static const bool value sizeof test T 0 sizeof char Basic is_container template specialize to derive..
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new is an ordinary class is there any difference between Test test new Test and Test test new Test c constructor initialization.. there any difference between Test test new Test and Test test new Test c constructor initialization new operator c faq ..
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 glibc can use to make a nice stacktrace gcc g rdynamic . test.c o test Executing this gets you this output . test Error signal.. use to make a nice stacktrace gcc g rdynamic . test.c o test Executing this gets you this output . test Error signal 11 ... . test.c o test Executing this gets you this output . test Error signal 11 . test handler 0x19 0x400911 lib64 tls libc.so.6..
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 the next loop runs faster std sort data data arraySize Test clock_t start clock long long sum 0 for unsigned i 0 i 100000.. 256 With this the next loop runs faster Arrays.sort data Test long start System.nanoTime long sum 0 for int i 0 i 100000 i..
http://stackoverflow.com/questions/213907/c-stdendl-vs-n Many C books contain example code like this... std cout Test line std endl ...so I've always done that too. But I've seen.. of code from working developers like this instead std cout Test line n Is there a technical reason to prefer one over the other..
http://stackoverflow.com/questions/2910979/how-is-base-of-works const bool value sizeof check Host B D int sizeof yes Test sample class Base class Derived private Base Exspression is..
c++ call constructor from constructor http://stackoverflow.com/questions/308276/c-call-constructor-from-constructor an c# developer I'm used to run through constructors class Test public Test DoSomething public Test int count this DoSomethingWithCount.. I'm used to run through constructors class Test public Test DoSomething public Test int count this DoSomethingWithCount.. constructors class Test public Test DoSomething public Test int count this DoSomethingWithCount count public Test int count..
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new after the type name make a difference with new If 'Test' is an ordinary class is there any difference between Test test.. is an ordinary class is there any difference between Test test new Test and Test test new Test c constructor initialization.. class is there any difference between Test test new Test and Test test new Test c constructor initialization new operator..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection gray contours CV_RETR_LIST CV_CHAIN_APPROX_SIMPLE Test contours vector Point approx for size_t i 0 i contours.size..
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 this edit as no longer applicable for i in 1..5 do echo Test run i at `date` echo n CPP cat test_lines . readline_test_cpp.. echo n Python cat test_lines . readline_test.py done Test run 1 at Mon Feb 20 21 29 28 EST 2012 CPP Saw 5570001 lines.. Python Read 5 570 000 lines in 1 seconds. LPS 5 570 000 Test run 2 at Mon Feb 20 21 29 39 EST 2012 CPP Saw 5570001 lines..
Linking C++ code with 'gcc' (without g++) http://stackoverflow.com/questions/1001535/linking-c-code-with-gcc-without-g obj io.o obj stopwatch.o o bin process # DEFAULT TEST CASE run exe . bin process i data nasa_small.log a data nasa_small.access..
Why is GoogleMock leaking my shared_ptr? http://stackoverflow.com/questions/10286514/why-is-googlemock-leaking-my-shared-ptr MyClass MOCK_METHOD1 myMethod void shared_ptr MyParameter TEST LeakTest GoogleMockLeaksMatchedPointer shared_ptr MyClassMock.. to pass p must be destroyed at or before the end of TEST . The problem here is that internally gmock maintains a record.. the effect of blocking the call to p 's destructor when TEST ends. In order to work around this I think your best bet is..
Is it possible to read infinity or NaN values using input streams? http://stackoverflow.com/questions/11420263/is-it-possible-to-read-infinity-or-nan-values-using-input-streams fail_string std cout fail_string std endl else std cout TEST FAILED std endl The output of the above is 1 nan inf inf nan..
Continue to debug after failed assertion on Linux? [C/C++] http://stackoverflow.com/questions/1721543/continue-to-debug-after-failed-assertion-on-linux-c-c use signals to get around this problem like #define ASSERT TEST if TEST raise SIGSTOP But although GDB through KDevelop stops.. to get around this problem like #define ASSERT TEST if TEST raise SIGSTOP But although GDB through KDevelop stops at the.. asm int 3 Then your assert can become #define ASSERT TEST if TEST asm int 3 According to Andomar int 3 causes the cpu..
Is there a better way to load a dll in C++? http://stackoverflow.com/questions/2060403/is-there-a-better-way-to-load-a-dll-in-c #include stdafx.h #include windows.h #ifndef BHANNAN_TEST_CLASS_H_ #define BHANNAN_TEST_CLASS_H_ extern C Returns n the.. windows.h #ifndef BHANNAN_TEST_CLASS_H_ #define BHANNAN_TEST_CLASS_H_ extern C Returns n the factorial of n . For negative.. bool __declspec dllexport IsPrime int n #endif BHANNAN_TEST_CLASS_H_ BHannan_Test_Class.cpp #include stdafx.h #include BHannan_Test_Class.h..
How to create a class to wrap GULT? http://stackoverflow.com/questions/2129388/how-to-create-a-class-to-wrap-gult currWindowSize 0 currWindowSize 1 glutCreateWindow TEST setUp glutDisplayFunc drawScene glutMainLoop However drawScene..
Understanding the low-level mouse and keyboard hook (win32) http://stackoverflow.com/questions/3134183/understanding-the-low-level-mouse-and-keyboard-hook-win32 recvd n TranslateMessage msg DispatchMessage msg #ifdef TEST Sleep 50 #endif So everything works here except if I #define.. 50 #endif So everything works here except if I #define TEST to put in the Sleep the mouse becomes incredibly sluggish as..
C++ Static member method call on class instance http://stackoverflow.com/questions/325555/c-static-member-method-call-on-class-instance iostream class Test public static void DoCrash std cout TEST IT std endl int main Test k k.DoCrash calling a static method.. On VS2008 SP1 vc9 it compiles fine the console just diplay TEST IT . As far as i know static member methods shouldn't be called..
Unable to get hudson to parse JUnit test output XML http://stackoverflow.com/questions/428553/unable-to-get-hudson-to-parse-junit-test-output-xml todir reports fileset dir reports include name TEST .xml fileset report format frames todir reports junitreport..
Convert an ASCII std::string to hex http://stackoverflow.com/questions/5990825/convert-an-ascii-stdstring-to-hex value. The output format should also be a std string. i.e. TEST would be 0x54 0x45 0x53 0x54 or some similar format. I found.. string to int to string conversion std string teststring TEST std stringstream hValStr for std size_t i 0 i teststring.length..
How can I create directory tree in C++/Linux? http://stackoverflow.com/questions/675039/how-can-i-create-directory-tree-in-c-linux do_mkdir path mode FREE copypath return status #ifdef TEST #include stdio.h Stress test with parallel running of mkpath.. 1 if fail 0 printf created s n argv i return 0 #endif TEST The macros STRDUP and FREE are error checking versions of strdup..
Find a function by it signature in Windows DLL http://stackoverflow.com/questions/9644717/find-a-function-by-it-signature-in-windows-dll kernel32.InterlockedCompareExchange 765DEA35 85C0 TEST EAX EAX 765DEA37 75 0A JNZ SHORT USER32.765DEA43 765DEA39 C705..
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