الوصف:
Technical discussion of the C++ language. (Moderated)
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Question on goto with try/catch
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A project I am working on has large amounts of code written in this style: void MyClass::MyFunction() { try { // code here if(something bad happened) goto label; } catch(...) { // exception handling here. } label: // Run cleanup code - deallocate memory, etc.... المزيد »
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Copy C'tor - doubt
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I have a situation where I'm required to generate a copy of an object. I have simplified the class into a tiny one, but in reality its a huge class with multiple struct types as data member. Here is my simplified class: class AB { private: int a; public: AB(int ar): a(ar){}... المزيد »
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Boost release 1.41.0 available
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Release 1.41.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release contains one new library and numerous bug fixes for... المزيد »
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type erasure problem, correctly up casting from void*
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Hi, I have a system which handles arbitrary types, and to be able to invoke the correct functions I use type erasure with a void* argument. This works dandy most of the time, save for when the type inherits from multiple types, in which case it naturally fails spectacularly. So, somehow I must either change the interface to not use void*, in... المزيد »
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stack corruption in release
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Hi all, i'm working on a big program, wich is an awful mix of C and C++. I'm on windows XP, with Visual Studio 2008 SP1. This program works fine in debug mode. But in release mode, there is a crash without any message, and the catch() block don't catch nothing. I located the function where the crash occurs. In this function, if i... المزيد »
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Better way to call member function using function pointer?
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Hi, Following is isolated code reproducing the issue I encountered while using function pointers: ////////////////////////////// //////////////// ...using namespace std; class Sample { public: Sample() { funPtrs["fun1"] = &Sample::fun1; funPtrs["fun2"] = &Sample::fun2; funPtrs["fun3"] = &Sample::fun3;... المزيد »
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problem with default argument with template args
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I cannot see what is wrong with the code below: template<class A, class B> class Arg { public: Arg() {}; ...template<class A, class B> class User { public: User(const char* username, Arg<A,B> arg = Arg<A,B>(), bool flag = false) { }; ...gcc fails to compile it. The error output is:... المزيد »
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if(T p = a()) + else = Bah!
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Sometimes the C++ syntax really leaves me baffled: ///////////////////////// typedef int T; T a() { return 0; ...int main() { if(T p = a()) { p; // in scope, not null - compiles OK } else { p; // in scope - compiles OK } p; // out of scope - error: undeclared identifier // Note that an inverse condition, where p would... المزيد »
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templates vs inheritance.
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Hi Guys, I see that inheritance allows the paradigm of "programming to interface" with ease.A client can store a pointer to abstract base class and invoke operaitons on it without caring about the concrete derived class that pointer points to. Inheritance seems to allow programming to interface naturally because of dynamic binding.... المزيد »
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C++ Tutorial Audio / Video
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Hi folks, I'm wondering if there are any audio / video C++ Programming tutorial. Something that I can listen to while I travel may be in my ipod / in my CD drive of my Car. I would appreciate if any one could point me to a link where I can buy / download free. I prefer the lecture in English language.... المزيد »
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