Recent questions tagged C++

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c++ - Linking a static library to my project on Visual Studio 2010

I want to use oscpack (http://code.google.com/p/oscpack/) as a static library for my project but when I try ... libs and the name of the libs. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Parallel computing -- jumbled up output?

I'm trying to learn the basics of parallel computing, but I'm running into an issue on my computer. Take a ... Hello World! rld! Hello World! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Difference between MoveInsertable and CopyInsertable?

Can someone provide a more lucid explanation of these two terms? In other words, some simple explanation with ... , in uninitialized storage. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - specializing member S::display requires ‘template<>’ syntax

I'm creating a trait class to help with my program. I have a template class called operations that contains ... cannot have a storage class See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Std::deque does not release memory until program exits

On linux, std::deque does not release memory until program exits. The complete code is below. Any help will be greatly ... (line)); return 0; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to copy a certain number of chars from a file to a vector the STL-way?

If I want to copy the contents of a file to a vector, I can do it like that: std::ifstream file(" ... to do this using only existing components? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How do I create a .exe from a .cpp file in Code Blocks?

I've just started learning C++, and to display the outputs of code I found this method. This worked when I ... 0 seconds) 0 errors, 0 warnings See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Is calling asio io_service poll() or poll_one() in a nested or recursive fashion (ie. within a handler) valid?

Is calling asio::io_service::poll() or poll_one() in a nested or recursive fashion (ie. from within a handler) valid? A ... } { C } { D } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - OpenGl read and write to the same texture

I have a RGBA16F texture with depth, normal.x, normal.y on it. I want to read r, g, b and write to a ... write to the same texture in this case? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why are string and vector distinct types?

They're both resizable arrays, and std::basic_string doesn't have any specifically character-related functions like ... for character data? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Adding linker options to Code::Blocks

When i try to run an executable compiled with Code::Blocks on my Win 7 x64 machine, it says it cannot run ... where do i put the libraries? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - VS2010 reports false memory leaks for static classes in a DLL

A follow-up question to Memory leaks when calling ITK from Visual Studio DLL I refined the problem to the ... except disabling leak reporting? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - how to change QCheckBox text label color in Qt?

I'm unable to change the color of Qcheckbox in QT, can somebody help me with code to change color of check box ... im using QT4.7.4 version.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - OpenCV window in fullscreen and without any borders

In OpenCV when displaying an image with: cvSetWindowProperty("displayCVWindow", CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN); ... -left corner See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to read a csv file data into an array?

I have a CSV file formatted as below: 1,50,a,46,50,b 2, 20,s,56,30,f 3,35,b,5,67,s ... How can I ... sure how to create the 2d array here } } }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Sequence of constructor calls in multiple inheritance

I have tried to find a lot that what if only one class is made virtual in multiple inheritance? The ... is not called after grandfather? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - explicit copy constructor compile error

I was checking operator overloading in C++ and came across something I did not expect and have some doubts ... the correct approach to follow? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - how to set or initialize default value for all elements of a table or 2d array or multdimentional array

I want to set a default nonzero value for all elements of a table or 2d array. array[size]={12} ... notes-cpp/arrayptr/array-initialization.html See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Is it possible to turn off support for "and" / "or" boolean operator usage in gcc?

GCC seems to allow "and" / "or" to be used instead of "&&" / "||" in C++ code; however, as ... the compiler at more fundamental level. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why operator= returns reference not const reference

The original question is related to overloading operator= and I like to share my findings as it was nontrivial ... it should be non constant? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Unique pointer in-class initialization

Suppose I have a unique_ptr member object that I want to initialize in-class, see the code below. Why do I have to ... int main() { Bar bar; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to return an fstream (C++0x)

I think I'll get right into it and start with the code: #include <iostream> #include <fstream> #include < ... 've described would be great. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - What does static_cast<T> do to a T&?

So I asked this question and I was tinkering around with solving it via static_cast. (Incidentally it does ... ://webcompiler.cloudapp.net/ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How do I use the wmain() entry point in Code::Blocks?

I did a fresh install of Code::Blocks (I installed the one for Windows 7 which comes with GCC compiler ( ... modifications do I have to do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Boost Pool experience requested. Is it useful as allocator with preallocation?

Recently i have been looking for a pool/allocator mechanism. Boost Pool seems to provide the solution, but there ... any Boost-specific forum. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Is there a way to use delegating constructors in Visual Studio 2012?

Looking through the new features of C++11, delegating constructors seems like they would be particular useful ... com/C++11FAQ.html#inheriting See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How do you get a minimal SDL program to compile and link in visual studio 2008 express?

I'm trying to use SDL in C++ with Visual Studio 2008 Express. The following program compiles but does ... right before defining the function. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Is default constructor elision / assignment elision possible in principle?

. or even allowed by the C++11 standard? And if so, is there any compiler that actually does it ... constructors and noexcept default operator=. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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