Can anybody recommend a good (ideally open source) C++ spell checker library. We are currenly using Talo, which isn't very good, so we are looking to change. One which includes a grammar checker would also be good. Thanks ...
The SQLite documentation says it is transactional. The explanation in the linked article states that if a C++ program which has the SQLite C++ code statically linked into it is forcibly terminated (for example, TerminateProcess() in WinAPI) or crashes when a write is being performed the database remains intact - either fully updated or ...
I've been doing some profiling lately and I've encountered one case which is driving me nuts. The following is a piece of unsafe C# code which basically copies a source sample buffer to a target buffer with a different sample rate. As it is now, it takes up ~0.17% of the total processing time per frame. What I don't get is that if I use ...
C++ comes with four built-in casts. static_cast dynamic_cast const_cast reinterpret_cast Not to meantion the frowned upon C (style*)cast. Additionally boost supplies a lexical_cast, are there any other useful casts that you use or would like to exist? ...
I'm trying to list available interfaces using the WSAIoctl function. I have to pass in a buffer to hold the complete list. I want to get a count of the interfaces before I allocate memory to hold the interface details but if I pass in a NULL pointer the call just fails (I dont get a valid count returned). Any way to get this count befor ...
I work in a team of developers, one of us works specifically under Windows, and I work primarily in Mac OS X. We're wanting to develop C-based applications either in C++ or Objective-C however I'm not really knowledgeable in how to go about a cross-platform development project. Is it viable to work in C++ using Mac OS X? Obviously the...
If a process is killed with SIGKILL, will the changes it has made to a memory-mapped file be flushed to disk? I assume that if the OS ensures a memory-mapped file is flushed to disk when the process is killed via SIGKILL, then it will also do so with other terminating signals (SIGABRT, SIGSEGV, etc...). ...
I'm programming network headers and a lot of protocols use 4 bits fields. Is there a convenient type I can use to represent this information? The smallest type I've found is a BYTE. I must then use a lot of binary operations to reference only a few bits inside that variable. ...
I am trying to write C++ function perform curve fitting implementation using least square method. Input parameters of this function are x and y 1D array and n. And this function finds the coefficients of a polynomial p(x) of degree n that fits the data, p(x(i)) to y(i), in a least squares sense. Therefore, function will return coeffic...
I'm just learning C++, just started to mess around with QT, and I am sitting here wondering how most applications save data? Is there an industry standard? Do they store it in a XML file, text file, SQLite? What about sensitive data that say accounting software would need to save? I'm just interested in learning what the best practic...
I have a limited c++ background and I would like to edit the registry. For example, I want to grab the value of HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveTypeAutoRun and check to see if 0x20 is in it, and then if it is, subtract 0x20 from it's value and write it back (and kill and restart explor...
I'm running into some compiler errors I don't understand. I'm pretty sure I'm doing something very wrong here but I don't know what. I would like all the world constants to be defined as belonging to the class. Notes: I'm only using classes as structs with attached members. I'm not following strict Object-Orriented Design on purpose....
Duplicate: What REALLY happens when you don’t free after malloc? Let's say, for example: int main() { char* test = new char[50000]; return 0; } What happens to the allocated memory after the program had finished? Does it get freed for other applications immediately? Or perhaps after some time? Or maybe it's lost to the system...
Hi guys I am having some issues trying to convert a double to C++ string. Here is my code std::string doubleToString(double val) { std::ostringstream out; out << val; return out.str(); } The problem I have is if a double is being passed in as '10000000'. Then the string value being returned is 1e+007 How can i get th...
I'm attempting to edit the registry with C++ and this is my first time trying to do so, and I'm failing. I'm not getting any error code, everything says it completed successfully, but it doesn't actually change the registry key. Here is the code I am using: HKEY hkey; DWORD dwDisposition, dwType, dwSize; int autorun = 0x00; int CD_AUTO...
I would like to kill and restart explorer.exe from my C++ application, how would I do this? ...
I have the algorithm for sort by last name, but I am having trouble figuring out how to sort by last name, then if two people have the same last name, sort by their first name. void sortLastName(FRIEND friends[ARRAY_MAX], int& count) { FRIEND temp; for(int i = 0; i < count - 1; i++) { for (int j = i + 1; j < count; j++) {...
I am currently writing an application that will serve a similar purpose for multiple clients, but requires adaptations to how it will handle the data it is feed. In essence it will serve the same purpose, but hand out data totally differently. So I decided to prodeed like this: -Make common engine library that will hold the common funct...
so, i am trying to use CArray like this : CArray<CPerson,CPerson&> allPersons; int i=0; for(int i=0;i<10;i++) { allPersons.SetAtGrow(i,CPerson(i)); i++; } but when compiling my program, i get this error : "error C2248: 'CObject::CObject' : cannot access private member declared in class 'CObject' c:...
I am new to c++ and I have been practicing collision in a small game program that does nothing and I just can't get the collision right So I use images loaded into variables background = oslLoadImageFile("background.png", OSL_IN_RAM, OSL_PF_5551); sprite = oslLoadImageFile("sprite.png", OSL_IN_RAM, OSL_PF_5551); bush = oslLoadImageFile...