I'm looking for something to abstract the standard operating system functionality in C/C++: span/kill a thread, send/receive a message, start/stop a timer, maybe even memory management, although I can probably handle that myself with my own buffer pool. I want to to be able to develop and unit test on Linux/windows and then recompile th...
Hi. I am having a problem with the Mixer API in Windows XP. I am trying to change the microphone recording level and mute state for a distinct sound device (I have multiple devices installed). Do do this, I need the MIXERLINE.dwLineID member in order to obtain MIXERCONTROL.dwControlID. I am trying to do this by passing MIXERLINE_COMP...
I want to learn C# with standard libraries. For now I know C/C++ and basic OOP concepts. I would like to learn more complex OOP also. Is there any book which matches my needs? ...
Hello there Consider this: class Foo{ void func1(){ /*func1 code*/ } void func2(){ /*func2 code*/ } }; Case 1: class Foo in Foo.h Case 2: class Foo nicely seperated among Foo.h and Foo.cpp Various other cpp files include Foo.h My question is...Will Case 1 lead to a bigger binary...
I know I am doing it wrong, but I can't figure out how to organize this makefile. I define my util source files, and use some functions to define the .o files from them here: UTIL_SRC = utils/src/foo.cpp utils/src/bar.cpp utils/src/baz.cpp UTIL_OBJS = $(patsubst utils/src/%.cpp,utils/obj/%.o,$(UTIL_SRC)) This is the target that I use...
I need a way to create a string of n chars. In this case ascii value zero. I know I can do it by calling the constructor: string sTemp(125000, 'a'); but I would like to reuse sTemp in many places and fill it with different lengths. I am calling a library that takes a string pointer and length as an argument and fills the string with ...
I'm figuring out that there's two ways of writing C++ in Eclipse: either download the Eclipse IDE for C/C++ Developers or download the regular Eclipse for java and add the CDT plugin. What is the difference between these two? (Note that I'm already exstensively using Eclipse for Java) Thank you ...
I'm searching for a "good enough" gprof output visualizer. Kprof seems unmaintained. Profiling is an important part of (speed sensitive) applications development, but I fail to find support on the major Linux IDEs. Any suggestions ? ...
Hi, I've got a library written in C++ which I wrap using SWIG and use in python. Generally there is one class with few methods. The problem is that calling these methods may be time consuming - they may hang my application (GIL is not released when calling these methods). So my question is: what is the simplest way to release GIL for t...
It seems that are several ways to call matlab in C C++ and to call C C++ in matlab. While I try to list them here, please point it out If I miss something. To call C C++ in matlab, there are also two methods. The first one is to call functions in C shared libraries. The second one is to build C C++ code into binary MEX-files, which will...
I dont completely understand this: class Base { public: Base() { cout<<"Base" << endl; } virtual void call() { cout<<"Base call" << endl; } }; class Derived: private Base { public: Derived() { cout<<"Derived" << endl; } }; int main(void) { Base *bPtr = ne...
This is a slightly different question to this one ([http://stackoverflow.com/questions/1566445/accessing-a-method-from-a-templated-derived-class-without-using-virtual-functions%5D%5B1%5D) which I asked recently. I would like to create an instance of an object using a templated factory method, then from then on only be able to set and ge...
Using c++, and hopefully the STL, I want to sort a sequence of samples in ascending order, but I also want to remember the original indexes of the newly samples. For example I have a set, or vector, or matrix of samples A : [5, 2, 1, 4, 3] I want to sort these to be B : [1,2,3,4,5], but I also want to remember the original indexes of th...
Hi I've got a static member of a templated class that I want defined for a sub group of classes that are templated ie: template <typename T> class FooT { private: static int ms_id; }; template <typename T> class Foo {}; template<> template<typename T> int FooT< template Foo<T> >::ms_id = 10; Sadly this throws the following error ...
I need to parse some C++ files, and to make things easier for me, I thought about removing multiline comments. I tried the following regex : /(\/\*.*?\*\/)/, using the multiline modifier, and it seems to work. Do you think there will be any case where it will fail? ...
I need to store a collection of ints and doubles (representing nominal and real valued data) in c++. I could obviously store them all in a std::vector<double> , but this feels a bit wrong and doesn't get the aesthetics bonus points. I could also cook up something based on polymorphism, but I also need the collection to be really efficie...
The first example does not work when you go to delete the pointer. The program either hangs when I add the null terminator or without it I get: Debug Assertion Failed Expression: _BLOCK_TYPE_IS_VALID(pHead->nBlockUse) from Visual Studio 2008 //Won't work when deleting pointer: char *at = new char [3]; at = "tw"; // <-- not sure what'...
class A {} A a; type_info info = typeid (a); // error type_info is private i want a list list<type_info> to store the type of classes. Is there a solution? ...
Hi, i'm working on a windows application, where in a dialog i query some data from Postgres, and manually show the output in a table widget. m_ui->tableWidget->setRowCount(joinedData.count()); for(int i=0; i<joinedData.count(); i++) //for each row { m_ui->tableWidget->setItem(i, 0, new QTableWidgetItem(joinedData[i].bobin.refer...
Using http://support.microsoft.com/kb/240184 I'm able to open SAM, SOFTWARE, SYSTEM reg hives, but I do not know the next step to get them copied in a different backup folder? I get Access Denied when I try to use BackupRead API. Any help is much appreciated! ...