Recent questions tagged C++

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c++ - Generating outside supporters into mesh for 3D printing

Prologue This is my attempt to re-ask the closed Generating supporters for 3D printing as it is interesting question but ... ? Using simple C++. 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 look for an ANSI string in a binary file?

I would like to find the first occurence of an ANSI string in a binary file, using C++. I know the string ... need for copying it into a string? 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++ - Visual Studio MSB3721 error when compiling a __device__ function call from another file

I'm trying to compile a CUDA project which gives a 255 error as soon as I try to run a function defined in ... (index); In the main kernel file 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++ - Draw on screen with GDI+ (or GDI) similar to Inspect

I'm trying to draw on the screen (the whole screen, on top of every other window) using GDI+. I've passed ... GDI instead of GDI+ are fine... 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++ - cmake FindBoost not finding Boost libraries when building with MinGW on Windows

qtcreator supports both qmake and cmake for cross platform development and qmake works fine for both msvc and MinGW builds ... a "work around"? 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 rename or relabel a Network Drive label

I am mounting a network drive to windows using WNetAddConnection2 which is working fine but while mounting the drive ... to NDS@MyFolder (R:) 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 Serialization - Exporting in multiple CPP files

The last days I have been struggeling with a Boost Serialization problem: I am trying to serialize and deserialize ... for a specific 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++ - Calculate LCM of N numbers modulo 1000000007

I was solving following problem on LCM : Calculate LCM of N numbers modulo 1000000007 My approach : typedef ... improve my Code? 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++ - simultaneous read and write to child's stdio using boost.process

i am trying to write and read to child's stdio using boost.process using something like this: boost::asio:: ... why i am using same buffer 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++ - Inject a dll file to UWP

I make simple a UWP app and a desktop app. This code inject the ConsoleApplication1.dll file to the desktop is normal ... ; } return 0; } 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++ - Replacing existing raw pointers with smart pointers

Note: This may sound dumb. I have an application which uses raw pointers and there are lots of memory ... Is Valgrind better than Devpartner. 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++ - CUDA 5.5 cudaMemcpyToSymbol, __constant__ and out of scope error

I'm trying to compile a CUDA example which has; cuda.cu: __constant__ unsigned VERTICES; __constant__ unsigned TRIANGLES; ... .cpp? TIA. cheers, 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++ - Declaring a local variable within class scope with same name as a class attribute

While observing another person's code, i realized that within class A's method he declared a local int ... cause in more complex situations? See Question&Answers more detail:os...

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

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496 views

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c++ - why a constexpr expression of literal class type with a pointer subobject can't be a non-type template argument

After looking at the post about non-type template argument,I have a confusion for an example in that post,I cite ... help me find out them. 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++ - CreateProcess() Error

STARTUPINFO si; PROCESS_INFORMATION pi; memset(&si, 0, sizeof(si)); memset(&pi, 0, sizeof(pi)); si.cb = sizeof( ... Dir. but it's not working. See Question&Answers more detail:os...

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

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537 views

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c++ - Object delete itself from container

So I have a container(any kind, probably std::map or std::vector) which contains objects of a class with some ... that class just to store 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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398 views

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c++ - How to parse a string to a ctime struct?

Is there an established way to parse a string to a Time structure? What I would ideally like to do is the ... that found in Boost or .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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368 views

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c++ - Boost.Python and Boost.Signals2: Segmentation faults

I have a problem with integrating boost.signals2 in my existing C++ lib which I have exposed with boost ... .hpp:92 Any ideas? 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++ - working with VLC smem

I'm trying to do something like this post : Get frame from video with libvlc smem and convert it to opencv Mat ... pass that file to video-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++ - How to load a Windows icon using a pixel buffer?

I'm trying to create a Windows-compatible icon using a pixel buffer. The Surface class loads an image and ... [i] = CreateIconIndirect(&temp); 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 does cin.clear() fix an infinite loop caused by bad input to cin?

I've written a switch statement, and created a default which would simply say the user picked a bad option and repeat ... entry! "; break; } } See Question&Answers more detail:os...

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

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646 views

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c++ - boost::weak_ptr<T>.lock() Crashes with a SIGSEGV Segmentation Fault

(EDIT) Environment: plee@sos-build:/usr/local/include/boost$ lsb_release -a No LSB modules are available. ... boost::shared_ptr<RtmpConnection>? See Question&Answers more detail:os...

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

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995 views

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c++ - Clion exit code -1073741571 (0xC00000FD)

I get a weird exit code in clion: exit code -1073741571 (0xC00000FD) This is my code: int main() { std::cin ... in Clion. What should I 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++ - How can I remove a window's non-client area completely?

I need a window featuring no title bar, none of the control boxes, no system menu, and no frames (all that ... } (Compiling with VS 2017.) See Question&Answers more detail:os...

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

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401 views

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c++ - PyQt4 OpenGL: Enabling OpenGL Core Profile

I'm using Mac OS X Mavericks, iMac with NVIDIA GeForce GTX 660M, so it should support OpenGL version 4.1 and ... ) window.show() app.exec_() See Question&Answers more detail:os...

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

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382 views

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c++ - Detecting when a key is released

I want to check when a key is released, but I can't do so without having an infinite cycle, and this puts the ... } myfile.close(); 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 do I include curl library in my C project in Code Blocks (Windows)?

The question seems straight forward. I tried a lot of things just to include curl in my C project using the code:: ... 5 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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348 views

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c++ - Is it possible to remove some checkboxes from tree view's nodes?

I have made a tree view control in dialog box, using resource editor. I have set the checkbox style with ... draw or perhaps superclassing ? See Question&Answers more detail:os...

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

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