I wrote some test code like this which compiled and worked fine... void threadtest() { HANDLE hThrd; DWORD threadId; int i; for (i = 0;i < 5;i++) { hThrd = CreateThread( NULL, 0, ThreadFunc, (LPVOID)i, 0, &threadId ); } // more stuff } DWORD WINAPI ThreadFunc(LPVOID n) { // stuff...
I have a couple of cases of circular declaration in my class delaractions in my main (global) header. #include <cstdlib> #include <iostream> using namespace std; enum piece_t {BLACK, WHITE, EMPTY, WALL}; //wall is area out side of board (board array is 21x21 but only 19x19 is playable) enum dir_t {ABOVE,BELOW,LEFT, RIGHT}; //shall i ...
I need a way to programatically detect whether the monitor is wide or not, in Windows. GetSystemMetrics returns the size of the desktop, which sort of works, but if an user has a widescreen monitor at, say, 1024x768, I'll incorrectly classify it as non-wide. GetDeviceCaps has similar problems with HORZRES and VERTRES, and even HORZSIZE...
What this C++ directive do: "#pragma GCC system_header"? ...
I am trying to convert this function from MSVC++ to MINGW (this is the original MSVC function) VOID __declspec(naked) BNSTUB() { __asm { pushad; call OnChatPacketReceived; TEST EAX,EAX; popad; jnz oldCall; MOV EAX,0; MOV DWORD PTR DS:[EBX+0x6FF3EBA0],1 ret; oldCall: C...
Hello MY PURPOSE: i want to make a c++ program that could use dos commands. OPTION: i can make a batch file and put into it the dos commands. but how to use this file from c++ program...? ...
Hey, I have a application and two Dlls. Both libraries are loaded by the application. I don't have the source of the application, but the source of the libs. I want to instantiate a class in lib A and want to use this instance also in lib B. How do I do this? I'm not sure, but I think that both libs are used in different threads of th...
I'm used to using iterations of Visual Studio for my IDE needs, but I've long since wiped the machine I had that on and don't think I can have the program reinstalled on new main machine. Because of this I've mostly been using Geany to write up my code, then FireFTP to send it off to a faraway UNIX machine, then using gcc or g++ to comp...
Newbie question here. I'd like to create a map with an int and my own custom class. Is there a way to do this? map myMap; If not, how do I go about accomplishing this? Basically, I want an id(or preferably an enum) to point to my own custom class. In most other languages, this would be a simple hash. Thanks. ...
Is it possible to programatically ask Mac OS X not to turn on the screen saver while your application is active? ...
Does anyone know an efficient way to right circular-shift a matrix? Btw, the matrix is binary but a method to solve a non-binary matrix is also fine. Right now, I'm thinking of implementing a circular array for the rows of my matrix and updating each row whenever a shift operation is required. Another method, I was considering was impl...
Is if ( c ) the same as if ( c == 0 ) in C++? ...
i have a priority queue and i have defined like this: priority_queue<Node*,vector<Node*>,greater<Node*>> myQueue; i have to add to queue on the basis of a parameter param and i have overloaded it like this bool Node::operator>(const Node& right) const { return param>right.param; } since the overload function doesnt take a po...
SO, I am in the process of resolving the port of a 32bit app to 64 bit. When I compile for x64 I see a warning come up for the line ` CString sig; sig = "something"; sig = sig.left(strlen(something defined)); <<<<<< ` So, I get the warning for the sig.left where it implicitly converts the strlen value to int. Since in x64 strlen retur...
Hi, I'm doing another C++ exercise. I have to calculate the value of pi from the infinite series: pi=4 - 4/3 + 4/5 – 4/7 + 4/9 -4/11+ . . . The program has to print the approximate value of pi after each of the first 1,000 terms of this series. Here is my code: #include <iostream> using namespace std; int main() { double pi=0.0;...
Again, porting 32-bit app to 64-bit. I get the negative subscript error on the C_ASSERT statement mentioned below.. C_ASSERT (sizeof(somestruct) == some#define); I also read the http://support.microsoft.com/kb/68475 article but not sure if I know how to fix it in this case. Help is appreciated. Thanks in advance. ...
I have the following data structures: struct fastEngine { ... } struct slowEngine { ... } template<typename T> class Car { T engine; vector<T> backupEngines; virtual void drive() = 0; } class FastCar : public Car<fastEngine> { virtual void drive() { // use the values of "engine" in some way } } class SlowCar : p...
The problem is that, well, it's C++. The way I've created them makes it such that they've always been run via a terminal/console window and wait for user input or else simply take a sample input and run with that. The output has also always been to the terminal screen or sometimes to a file. I'm not quite sure how I could take all of ...
I need to call a C++ member function from a C program. I created .cpp/.h wrapper files in the C code, wrapping the C++ member functions. i.e.- wrapper.cpp #include "wrapper.h" extern "C" { void wrap_member1() { Class::member1(); } void wrap_member2() { Class::member2(); } } and wrapper.h: #include <windows.h>...
The Boost Libraries don't seem to have a device for setting a thread's priority. Would this be the best code to use on Linux or is there a better method? boost::thread myThread( MyFunction() ); struct sched_param param; param.sched_priority = 90; pthread_attr_setschedparam( myThread.native_handle(), SCHED_RR, ¶m); I don't have al...