visual-c++

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 9 years ago . Today my friend asked me, why really do we need constructors in C++? Where as we can do the same in structural language. What is the

问题 When I compile my code in visual studio c++ 2008 I get the following error: fatal error LNK1104: cannot open file 'C:\Users\...\Documents\Visual Studio 2008\Projects\...\Debug\....exe I just copied my code from another project in visual studio C++ and pasted it in this project again in VS C++. Can it cause this error? 回答1: This can happen because, for example, the executable is currently executing or opened by another program, or because you don't have the right permissions for that directory

问题 | ■ Probelm definition____________________ I'm trying to design a super-flexible, but memory efficient module satisfying below properties. It can switch OFF unnecessary member variables depending on the situation. Which variables it will own are determined at the compile-time . I somehow made one which determines its member list " before " the compile-time , using macros and enumerator flags . see below : ▼ TraitSwitch.h #pragma once // Macros to switch-off source codes themselves. #define ON

问题 | ■ Probelm definition____________________ I'm trying to design a super-flexible, but memory efficient module satisfying below properties. It can switch OFF unnecessary member variables depending on the situation. Which variables it will own are determined at the compile-time . I somehow made one which determines its member list " before " the compile-time , using macros and enumerator flags . see below : ▼ TraitSwitch.h #pragma once // Macros to switch-off source codes themselves. #define ON

问题 I am currently working on a project. I have an rtf file which contains some text and images both. I need to display those images and text from rtf to richtextbox in Visual C++. We are not using .Net frameworks or MFC's so everything is in Visual C++ only. I do'nt have any idea how to do it. If anyone can guide me then it will be really helpful. Thanks in advance. 回答1: RichTextBox cannot load HTML. It can load only RTF or plain text. There are 3rd party components that can convert HTML to RTF,

问题 I am currently working on a project. I have an rtf file which contains some text and images both. I need to display those images and text from rtf to richtextbox in Visual C++. We are not using .Net frameworks or MFC's so everything is in Visual C++ only. I do'nt have any idea how to do it. If anyone can guide me then it will be really helpful. Thanks in advance. 回答1: RichTextBox cannot load HTML. It can load only RTF or plain text. There are 3rd party components that can convert HTML to RTF,

问题 To compile my source correctly on Windows, I need to pass the EHs flag to MSVC. This is usually straight forward: cl -EHs -c ... When building for GPU acceleration, I need nvcc to pass this flag along when it invokes cl under the hood. I simply do: nvcc -dc -ccbin cl -Xcompiler -EHs ... yet cl throws a warning: warning C4297: 'someFuncInMyCode': function assumed not to throw an exception but does note: The function is extern "C" and /EHc was specified It seems cl receives the flag EHc ,

问题 To compile my source correctly on Windows, I need to pass the EHs flag to MSVC. This is usually straight forward: cl -EHs -c ... When building for GPU acceleration, I need nvcc to pass this flag along when it invokes cl under the hood. I simply do: nvcc -dc -ccbin cl -Xcompiler -EHs ... yet cl throws a warning: warning C4297: 'someFuncInMyCode': function assumed not to throw an exception but does note: The function is extern "C" and /EHc was specified It seems cl receives the flag EHc ,

问题 I'm fairly new to C/C++ but have never tried to include external libraries before in my projects as I've mostly been doing tutorials and such. These have been mostly console applications/games. When I was looking for an alternative to the "evil" system(" ") commands I was pointed to Curses. Now I've gone to the GitHub for both branches of the PDCurses source library (wmcbrine's branch and Bill-Gray's Branch) but every time I try to build library it returns multiple errors (happy to provide a

问题 If, using Visual Studio 2019, I compile this C++ code with two virtual methods having the same name but different arguments: struct MyStruct { virtual void foo(float) = 0; virtual void foo(int) = 0; }; class MyClass : public MyStruct { public: void foo(float) {} void foo(int) {} }; static MyClass c; The order of methods in the generated class' vtable is inverted. Here is the output in https://godbolt.org const MyClass::`vftable' DQ FLAT:const MyClass::`RTTI Complete Object Locator' ; MyClass: