Hi, I need to count the times my public member function creates new data in a loop. Each time data is read it is saved into a private member varaible. Nothing is overwritten. // my classType.h const int ImpliedIndex = 1000; class classType { private: char privateMember[ImpliedIndex]; char privateMember2[ImpliedIndex]; public: st...
As most of you may be following my line of questions already know, i'm trying to create a program that can serialize multiple structs to a .dat file, read them back in via loading it's serialization, edit the contents, and then re-write them to the file and so on. It's a inventory program I am trying to do and I can't get it to work for ...
I've implementation of UnaryOperation like this struct Converter { Converter( std::size_t value ): value_( value ), i_( 0 ) {} std::string operator() ( const std::string& word ) { return ( value_ & ( 1 << i_++ ) ) ? word: std::string( word.size(), ' ' ); } std::size_t value...
We have project which uses gcc and make files. Project also contains of one big subproject (SDK) and a lot of relatively small subprojects which use that SDK and some shared framework. We use precompiled headers, but that helps only for re-compilation to be faster. Is there any known techniques and tools to help with build-time optim...
Why do some C++ projects require a runtime package to be installed, while others do not? EDIT:How to make a project to work without the runtime? ...
I have a program which is like this list<int>:: iterator n = alist.begin(); while(n!= (list<int>::iterator)0) { printf("Element is %d\n",*n); n = alist.erase(n); } So here i am comparing iterator with zero. but after deleting the last element the compiler is showing this error. *** glibc detected *** ./new: free(): invalid p...
Hi everyone, I hope you can help me out. I'm trying to send packets of 1000 bits across a network via TCP/IP and I was hoping to be able to use the Overlapped I/O technique in both Cygwin and Windows as well. In Cygwin, I am trying to use the "readv() and writev()" function calls to send 1000 bits across while in Windows, I am tryin...
Up till a while a ago my code base was very close to #include hell. Every time I changed an even mildly important .h file practically all the files got recompiled. The main reason for such high header dependency was that I have many small functions that need to be inline and I was under the impression that for inline to work they need to...
I am having a C++ code which have lot of recursion involved . I am thinking of using register class for my variables . Do you think by doing so I will be saving stack memory and will improve the performance Thanks Sameer ...
If a one-shot timer was scheduled via schedule_timer(timer,0,ACE_Time_Value(delay),ACE_Time_Value::zero) is cancel_timer required in order to avoid a memory leak? ...
I am using std::queue for implementing JobQueue class. ( Basically this class process each job in FIFO manner). In one scenario, I want to clear the queue in one shot( delete all jobs from the queue). I don't see any clear method available in std::queue class. How do I efficiently implement the clear method for JobQueue class ? I have ...
If I type in Description: Apple Quantity: 10 Wholesale Cost: 30 Retail Cost: 20 Date Added: December These are the contents in my .dat file: 1Apple103020December But when I load my program, it doesn't load the struct back in correctly resulting in there being 0 items in my list. Is that what it is suppose to look like or am I do...
Hi I'm getting really strange behavior in one of the DLLs of my C++ app. It works and loads fine until I include a single file using #include in the main file of the DLL. I then get this error message: Loading components from D:/Targets/bin/MatrixWorkset.dll Could not load "D:/Targets/bin/MatrixWorkset.dll": Cannot load library Matrix...
Hi, I am currently trying to have my Apache module repspond with custom error messages, so that a 400 for example contains additional information like "The coordinates are out of bounds". I found multiple sources on Google saying that it is possible, but none could tell me how. So is there some function that would allow me something lik...
Every time I do anything, and my while(1) gets called in my main function, my file gets cleared. It's driving me crazy. I've tried EVERYTHING. I try to put my ofstream out("data.dat"); outside the while(1) statement so it isn't called everytime but then nothing is written to the file like the ofstream isn't even working! I've tried to m...
Hi, I would like to create in C++ a Notifier class that I will use in other objects to notify various holders when the object gets destroyed. template <class Owner> class Notifier<Owner> { public: Notifier(Owner* owner); ~Notifier(); // Notifies the owner that an object is destroyed }; class Owner; class Owned { public: Owned(...
So I'm trying to debug this strange problem where a process ends without calling some destructors... In the VS (2005) debugger, I hit 'Break all' and look around in the call stacks of the threads of the misteriously disappearing process, when I see this: This definitely looks like a SO in the making, which would explain why the proce...
I am trying to write a utility that will allow moving files in Windows, and when it finds a file in use, will set that file to be moved on reboot. It seems that MoveFileEx (http://msdn.microsoft.com/en-us/library/aa365240(VS.85).aspx) is the right call for this, however I cannot figure out what error code I'm looking for from GetLastErr...
Like the title says; how do I load every file in a directory? I'm interested in both c++ and lua. Edit: For windows I'd be glad for some real working code and especially for lua. I can do with boost::filesystem for c++. ...
I don't get it. I've been staring at the code the code for three hours and I can't see the problem. The class I'm creating, called TwoDayPackage is derived from a class called Package. This is how I defined the constructor: TwoDayPackage(string, string, string, string, int, string, string, string, string, int, float, float, float)...