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c++ Programming Glossary: etDoes it make any sense to use inline keyword with templates? http://stackoverflow.com/questions/10535667/does-it-make-any-sense-to-use-inline-keyword-with-templates are defined within headers and compiler is able to determine if inlining a function is advantageous does it make any.. it make any sense I've heard that modern compilers know better when to inline function and are ignoring inline hint. c.. template int g int error not inline #endif Compile this et voila g a.cc b.cc tmp ccfWLeDX.o In function `int g int int..
Heap corruption under Win32; how to locate? http://stackoverflow.com/questions/1069/heap-corruption-under-win32-how-to-locate behaviuor is to generate throughput in this system socket transfer of data which is munged into an internal representation... which is munged into an internal representation. I have a set of test data that will periodically cause the app to exception.. easy to reproduce ten or fifteen minutes pass before something fails horrendously and exceptions like an alloc when running..
Inheriting std::istream or equivalent http://stackoverflow.com/questions/1231461/inheriting-stdistream-or-equivalent from another libraries that looks like this void read_something istream i I have no control over how the QDataStream is.. see if I've a example that I can post . Edit here is something commented in French it comes from the french FAQ of fr.comp.lang.c.. I have no time for translation and think it is better to leave them than to remove them which wraps FILE call into..
Precise floating-point<->string conversion http://stackoverflow.com/questions/1311242/precise-floating-point-string-conversion How to print floating point numbers accurately Guy Steele et al Any C library function based on these would be suitable... point c share improve this question You are not getting 1.3400000000000001 because of the float string conversion.. because of the float string conversion you're getting it because floating points are not precise. See What Every..
How is the size of a C++ class determined? http://stackoverflow.com/questions/14510711/how-is-the-size-of-a-c-class-determined is the size of a C class determined Summary How does the compiler statically determine the.. determined Summary How does the compiler statically determine the size of a C class during compilation Details I'm trying.. determine the size of a C class during compilation Details I'm trying to understand what the rules are for determining..
Is there a proper 'ownership-in-a-package' for 'handles' available? http://stackoverflow.com/questions/14878121/is-there-a-proper-ownership-in-a-package-for-handles-available publicly available for one to use For me unique_ptr et. al. doesn't work I must make unnecessary assumptions about.. about what the handle type is when what I want is just to get an 'ownership in a package' through the opaque handle type and.. handle class NULL does not always mean an empty handle. Sometimes it's INVALID_HANDLE_VALUE which is not the same. Disclaimer..
Visual c++ “for each” portability http://stackoverflow.com/questions/197375/visual-c-for-each-portability versions as well supports for each syntax on stl lists et al to facilitate iteration. For example list Object myList for.. to create an iterator and use a standard for loop. QuantumPete edit This seems to be a new feature introduced into MS Visual..
Why does valgrind say basic SDL program is leaking memory? http://stackoverflow.com/questions/1997171/why-does-valgrind-say-basic-sdl-program-is-leaking-memory char argv SDL_Init SDL_INIT_VIDEO SDL_Surface screen SDL_SetVideoMode 640 480 16 SDL_HWSURFACE SDL_Quit return 0 Compiled.. screen SDL_SetVideoMode 640 480 16 SDL_HWSURFACE SDL_Quit return 0 Compiled with the command g o test test.cpp lSDL And here.. the output of valgrind christian@christian laptop ~ cpp tetris valgrind leak check full . test 3271 Memcheck a memory error..
How to programmatically gain root privileges? http://stackoverflow.com/questions/2483755/how-to-programmatically-gain-root-privileges this question Original answer You might consider the setuid switch on the executable itself. Wikipedia has an article.. has an article on it which even shows you the difference between geteuid and getuid quite effectively the former being for.. article on it which even shows you the difference between geteuid and getuid quite effectively the former being for finding..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c to you. Generally the dynamic memory allocator malloc new et c. starts at the end of memory and works backwards. Explaining.. to lower addresses. You run out of memory when the stack meets the dynamic allocator somewhere in the middle but refer to.. controlling the allocation process by using buffers of preset sizes for all allocations. Stack variables are useful for when..
FAQ: Why does dynamic_cast only work if a class has at least 1 virtual method? http://stackoverflow.com/questions/4227328/faq-why-does-dynamic-cast-only-work-if-a-class-has-at-least-1-virtual-method dynamic_cast only work if a class has at least 1 virtual method This does not compile in C class A class B public A ..... dynamic_cast can only downcast polymorphic types so sayeth the Standard. You can make your class polymoprphic by adding.. should anyway See Footnote . Else if you try to delete a B object through an A pointer you'll evoke Undefined Behavior..
Why doesn't java support pass by reference like C++ http://stackoverflow.com/questions/5298421/why-doesnt-java-support-pass-by-reference-like-c why doesn't java support pass by reference but I only get java does not support pass by reference and I couldn't find.. an argument is passed to a function the invoked function gets a reference to the original value not a copy of its value... not a copy of its value. If the function modifies its parameter the value in the calling code will be changed because the..
any good and simple RPC library for inter-process calls? [closed] http://stackoverflow.com/questions/5398673/any-good-and-simple-rpc-library-for-inter-process-calls with arguments of builtin C types so serialization is pretty simple . C Windows XP . I'm looking for a library that doesn't.. simple task because doesn't provide RPC interface. Sockets are probably an overkill too because I don't need to communicate.. an overkill too because I don't need to communicate between machines. The same about DCOM CORBA et al. Named pipes Never..
http://stackoverflow.com/questions/5516044/system-where-1-byte-8-bit size use CHAR_BIT instead of 8 as a constant to convert between bits and bytes et cetera. What real life systems are there.. of 8 as a constant to convert between bits and bytes et cetera. What real life systems are there today where this holds.. of 8 as a constant to convert between bits and bytes et cetera. What real life systems are there today where this holds..
Implicit type conversion rules in C++ operators http://stackoverflow.com/questions/5563000/implicit-type-conversion-rules-in-c-operators type conversion rules in C operators I want to be better about knowing when I should cast. What are the implicit type.. type conversion rules in C when adding multiplying etc. For example int float int float float int int float float.. float float int int float float int int int int ^ float et cetera... Will the expression always be evaluated as the more..
http://stackoverflow.com/questions/5854581/polymorphism-in-c run time compile time ad hoc polymorphism parametric polymorphism I know that runtime polymorphism can be achieved.. functions But for the other two ad hoc polymorphism parametric polymorphism the website says ad hoc polymorphism If the.. prior to use this is called ad hoc polymorphism. parametric polymorphism If all code is written without mention of any..
http://stackoverflow.com/questions/720077/calculating-size-of-an-array . Code output below. Any thoughts suggestions tips et al. welcome. DP #include stdio.h #define G_N_ELEMENTS arr sizeof..
ifstream object.eof() not working http://stackoverflow.com/questions/730910/ifstream-object-eof-not-working cArray 100 ifstream object cout Enter full path name cin.getline cArray 100 if object return 1 Path is not valid This statement.. Enter full path name cin.getline cArray 100 if object return 1 Path is not valid This statement executes why ifstream.. OK I made the last one up . The same is true in C with fgets feof et al . Basically these flags will only be set AFTER you..
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