Recent questions tagged c++

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c++ - Encoding frames to video with ffmpeg

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

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c++ - Messaging system: Callbacks can be anything

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c++ - Using macro in Objective-C to log function name and line number

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c++ - Qt TabWidget Each tab Title Background Color

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c++ - Constructor finishes by throwing an exception ? Is there a memory leak?

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c++ - Unable to save a float value to a bitfield structure

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c++ - Linking error "undefined reference" about boost static library during compiling

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c++ - Files in directory with wildcard on Windows

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c++ - Template matching from a screenshot of a window

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

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c++ - Why is my double or int value is always 0 after division?

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c++ - How come pointer to a function be called without dereferencing?

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c++ - What is run first inside a cout statement? (C++17)

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c++ static method output using cout is always 1

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c++ - Adding two positive integers gives negative answer.Why?

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c++ - BNF (with custom modification) Parser using Spirit

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c++ - What is the maximum size of an vector<>::maxsize()?

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c++ - Using offsetof() to get owner object from member variable

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c++ - Boost Spirit parser with inherited attributes - simple example won't compile

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c++ - QFile.write( myStruct ) - how?

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1 answer 1.0k views

c++ - Play sound on internal speakers and possibility to use old xp api function?

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

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c++ - Global overload operator new/delete in MinGW

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

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1 answer 785 views

c++ - CUDA: Thread ID assignment in 2D grid

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

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c++ - Strlen returns unreasonable number

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c++ - Redirecting std::cout from DLL in a separate thread to QTextEdit

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

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c++ - cv::mean for non black pixel

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c++ - Qualified friend function template instantiation

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1 answer 760 views

c++ - Eigen Indices of Dense Matrix meeting Condition

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

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1 answer 757 views

c++ - How to paint / deform a QImage in 2D?

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

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1 answer 676 views

c++ - Error linking Boost with CMake

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

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1 answer 647 views

c++ - Templated requires-expression

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

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1 answer 1.1k views

c++ - OpenCV waitKey() should return -1 but didn't

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

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1 answer 826 views

c++ - C++20 in g++10: generator not defined

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

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c++ How to read XML using boost xml parser and store in map

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

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c++ garbage values in vector of pointer

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c++ - Getting a window's pixel format

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

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