Often one wants to print out additional information if an assert fails. A way to do that is this: assert(vec.size() > i || !(std::cerr << "False: " << vec.size() << ">" << i)) This way the actual sizes are printed when the assert fails. But it's ugly, and also it's easy to forget the ! , which will make the assertion condition true...
If found this quote at boost.org: More Boost libraries are in the pipeline for TR2 It links to the TR2 call from proposals. But I can't seem to find any other information on which boost libraries are headed for TR2. I've seen a draft proposal for Boost.Asio, and I vaguely remember seeing something about Boost.System and Boost.Fil...
I am trying to figure out a problem in my c++ code and have DDD to debug with on a Sun machine. I am required to use strings per some standard we have. But whenever DDD encounters a string variable, it always comes up as being empty. I want to remember having the same trouble using CVD before on an SGI. Short of re-writing my code to ...
the title of this question is an exact dupe, but the answers in that question don't help me. I have a bunch of object files packed in a static library: % g++ -std=c++98 -fpic -g -O1 -c -o foo.o foo.cpp % g++ -std=c++98 -fpic -g -O1 -c -o bar.o bar.cpp % ar -rc libsome.a foo.o bar.o I'd like to generate libsome.so from libsome.a inste...
try { pConnect = sess->GetFtpConnection(ftpArgs.host, ftpArgs.userName, ftpArgs.password, port, FALSE ); } catch (CInternetException* pEx) { loginErrCode = GetLastError(); printf("loginErrCode: %d\n", loginErrCode); if(loginErrCode == 12013) { printf("Incorrect user name!\n"); exit(0); } ...
Hi all... I'm trying to do a very simple program. It's actually a proxy, that I need to connect to it and that proxy fowards the packets to the outter world. I think of making a list of incomming packets, change the incomming port to a new port, forward the packet and wait for a response, and get the port number for the packet from my...
Good evening, people! I'm trying to solve a rather simple problem, but.. well, it seems that I can't. :) The idea is that I have a FIFO list (FIFO queue) with n elements and it's given a value, k (k < n). My little program has to move the elements to the left with k elements. (e.g. for n=4, k=3, a[]=(1, 2, 3, 4), the result is 4 1 2 3)...
It's my understanding that in C/C++ bitwise operators are supposed to be endian independent and behave the way you expect. I want to make sure that I'm truly getting the most significant and least significant words out of a 64-bit value and not worry about endianness of the machine. Here's an example: uint64_t temp; uint32_t msw, lsw;...
How can I get the caption of ListBox control. I have handle to Listbox control. I tried with following , but it returned empty string SendMessage(hListBox,WM_GETTEXT,MAX_PATH,(LPARAM)wszCaption); Any suggestion of how to get the caption associated with ListBox. ...
I am trying to find the handle to a dialog as soon as it opens. Now as soon as dialog is opened I try to call FindWindowEx for that dialog in a separate thread but it returns NULL. I then put some sleep before calling FindWindowEx. It works some time after putting sleep. It looks like FindWindowEx is getting called before even dialo...
Hello, I am writing a "Date" class for an assignment and I am having trouble doing one the of the functions. This is the header file for the class. class Date { public: Date(); // Constructor without parameters Date(int m, int d, int y); // Constructor with parameters. // accessors int GetMonth(); ...
Hi, The following feature needs to be implemented to our existing QT & C++ application. We have to expand the user typed abbreviations into pre-defined words(s). The functionality we need to implement is something similar to text expander. Say if a user typed "FL", this needs to be replaced to "Florida" after immediately. I was able t...
Hello, I'm writing a game engine and I need a way to get a precise and accurate "deltatime" value from which to derive the current FPS for debug and also to limit the framerate (this is important for our project). Doing a bit of research, I found out one of the best ways to do this is to use WinAPI's QueryPerformanceCounter function. G...
I've doing some performance analysis on the software I develop, and I've found that lookups on a global dictionary of URL's takes about 10% of the application's "load" phase time. The dictionary is implemented as a C++ STL std::map, which has O(lg n) lookups. I'm going to move it to a hash_map, which has roughly fixed time lookups. Th...
I have this template : template <class SourceFormat, class DestFormat, void (*convert)(DestFormat, SourceFormat)> static void _draw(...); And these functions : template <class Class1, class Class2> inline static void convertNone(Class1& dest, Class2& source) { dest = source; }; inline static void c...
I am writing a template class that takes as an input a pointer and stores it. The pointer is meant to point to an object allocated by another class, and handed to the this containing class. Now I want to create a destructor for this container. How should I free the memory pointed to by this pointer? I have no way of knowing a priori wh...
I need to understand how a linked list works in this C++ code. I got it from my textbook. Could someone explain in detail what exactly is going on here? /*The Node Class*/ class Node{ private: int object; Node *nextNode; public: int get() { return object; } ...
I am writing a sparse matrix class. I need to have a node class, which will be a template for its contents. My issue in writing this class is: How do I store the contents? I want to store the contents by value. If I stored it by pointer and it should be destroyed, then I'd have trouble. How can I safely perform a copy in the setConte...
I am using visual build professional and one of the steps is a 'Make VS 2003' (c++ project). However, every time I get the following error: fatal error C1033: cannot open program database '' If I compile the project myself in visual studios it works fine. Anyone know why this would be, or how I can fix it? ...
I implemented a wizard using property sheet. One one page I display tooltip if user enters something invalid. It is a tracking tooltip so I have to manually turn it on and off. Now I want to move the tooltip when the wizard page moves. It seems that only the property sheet window receives WM_MOVE event from Windows. The page does not. I...