I've started testing our C++ software with VS2010 and the build times are really bad (30-45 minutes, about double the VS2005 times). I've been reading about the /MP switch for multi-process compilation. Unfortunately, it is incompatible with some features that we use quite a bit like #import, incremental compilation, and precompiled head...
As my prveious question sounded confusing, I think it's best to clearly state what I want to achieve. I have (ignore the inheritance for now and focus on X): class Base {}; class X : public Base { private: double m_double; public: template<class A> friend void state( A& a, const X& x ) { data( a, x.m_double, "m_do...
In C++, what's the benefit of having a class with functions... say class someClass{ public: void someFunc(int arg1); }; then having the function's actual functionality declared after int main int main() { return 0; } void someClass::someFunc(int arg1) { cout<<arg1; } Furthermore, what's the benefit of declaring the...
I want to implement a multithreading environment using Qt4. The idea is as follows in c++-alike pseudo-code: class Thread : public QThread { QList<SubThread*> threads_; public: void run() { foreach(SubThread* thread : threads) { thread.start(); } foreach(SubThread* thread : threads) { ...
Hi, i want to concatenate 2 strings in c++, i can't use char*. I tried the following but doesn't work: #define url L"http://domain.com" wstring s1 = url; wstring s2 = L"/page.html"; wstring s = s1 + s2; LPOLESTR o = OLESTR(s); I need a string with s1 and s2 concatenated. Any info or website that explain more about this ? Thanks. ...
I'm studying for a final exam and I stumbled upon a curious question that was part of the exam our teacher gave last year to some poor souls. The question goes something like this: Is the following program correct, or not? If it is, write down what the program outputs. If it's not, write down why. The program: #include<iostream.h>...
I have a code that has been working for almost 4 years (since boost 1.33) and today I went from boost 1.36 to boost 1.42 and now I have a problem. I'm calling a custom formatter on a string to format parts of the string that match a REGEX. For instance, a string like: "abc;def:" will be changed to "abc\2Cdef\3B" if the REGEX contains "...
I "know" (hopefully) that MSVC 9.0 Implements C++ 2003 (ISO/IEC 14882:2003). I am looking for a reference to this fact, and I am also looking for any research that has been done in to how compliant MSVC 9.0 is with that version of the Standard. I have searched for and not been able to find a specific reference from MicroSoft that actua...
Hi Everyone, I'm new to Qt and I'm learning something new every day. Currently, I'm developing a small application for my Nokia N900 in my free time. Everything is fine, I am able to compile and run Maemo applications on the device. I've just learned about the foreach keyword in Qt. (I know it is not in C++, so I didn't think about it ...
As far as autotest is concerned, how do you do autotest for C++ programs? are there any autotest framework that can be utilized to do unit test and integration test? ...
Upon including <boost/thread.hpp> I get this exception: First-chance exception at 0x7c812afb in CSF.exe: Microsoft C++ exception: boost::exception_detail::clone_impl<boost::exception_detail::bad_alloc_> at memory location 0x0012fc3c.. First-chance exception at 0x7c812afb in CSF.exe: Microsoft C++ exception: [rethrow] at memory locati...
Want to explore few memory managers for our product - boost, small object allocator as in loki and one memory manager available internally in our company. Before choosing one for our product, we want to explore all options with small prototype application which need not be similar to our application in terms of functionality. My object...
Trying to run a C++ program, I get segmentation faults which appear to be specific to NetBSD. Bert Hubert wrote the simple test program (at the end of this message) and, indeed, it crashes only on NetBSD. % uname -a NetBSD golgoth 5.0.1 NetBSD 5.0.1 (GENERIC) #0: Thu Oct 1 15:46:16 CEST 2009 +stephane@golgoth:/usr/obj/sys/arch/i386/com...
If I have user defined exceptions in my code, I can't get Boost test to consider them as failures. For example, BOOST_AUTO_TEST_CASE_EXPECTED_FAILURES(MyTest,1) BOOST_AUTO_TEST_CASE(MyTest) { // code which throws user defined exception, not derived from std::exception. } I get a generic message: Caught exception: .... unknown locat...
The situation: Let's say I have an image A, say, 512x512 pixels, and image B, 5x5 or 7x7 pixels. Both images are 24bit rgb, and B have 1bit alpha mask (so each pixel is either completely transparent or completely solid). I need to find within image A a pixel which (with its' neighbors) most closely resembles image B, OR the pixel that...
I'm using the boost mt19937 implementation for a simulation. The simulation needs to be reproducible, and that means storing and potentially reusing the RNG seeds later. I'm using the windows crypto api to generate the seed values because I need an external source for the seeds and not because of any particular guarantees of randomness...
My application synthesises keystrokes in other apps by using SendInput. This almost works, except that due to circumstances I cannot change, the left Windows key will always be physically depressed when sending the input. This means that if, for example, the keystroke being sent is the 'd' key, then Windows sees the keystroke as its Win+...
Trying to get some basic understanding of console functionalities. I am having issues so consider the following... #include "stdafx.h" #include<iostream> #include<conio.h> using namespace std; /* This is a template Project */ void MultiplicationTable(int x); int main() { int value = 0; printf("Please enter any number \n\n"...
I'm making a drawing application with WINAPI and OpenGL. To make things more efficient I only redraw the region needed so I invalidateRect(hwnd,myRect,false). I know OpenGL does self clipping but I want to do that for my rect. I want it to clip itself for the region I invalidated to make things even more efficient. Thanks ...
I am writing matrix classes. Take a look at this definition: template <typename T, unsigned int dimension_x, unsigned int dimension_y> class generic_matrix { ... generic_matrix<T, dimension_x - 1, dimension_y - 1> minor(unsigned int x, unsigned int y) const { ... } ... } template <typename T, unsigned int dimension> class ...