I’m new to C++ I need to return the path to the file that the user has selected. For this i use winapi -> OPENFILENAME. When i try to return file path, i get only 1 character ("C" for disk C). My code: LPWSTR fileBuffer = new wchar_t[256]; OPENFILENAME ofn = { 0 }; ofn.lStructSize… Read More Windows API C++ | Problem with GetOpenFileName / OPENFILENAME

I finally switched to MSVC 2022 in the last couple days and am getting a static_assert from code that had previously been working fine. I have a type that needs to have a member implemented differently based on whether a template parameter type is trivally constructable and destructable or not, but have not yet actually… Read More static_assert in templated member function of non-template class

I’m a new hand in C++ and I’ve got a question about some Visual Studio version names. C++98, C++11 and C++14 are versions of the ISO/IEC 14882 standard for the C++ programming language; this means, for example, C++11 has some new features added or modified compared to C++98, C++14 has some new features added or… Read More What's the association between vc100 (default generator for Visual Studio 2010) and C++11/C++14?

Consider this code (godbolt example): #include <cstddef> template< std::size_t… sizes > class Impl { public: static constexpr std::size_t getDimension() { return sizeof…( sizes ); } }; template< std::size_t… sizes > class Wrapper : private Impl< sizes… > { using BaseType = Impl< sizes… >; public: //using BaseType::getDimension; static constexpr std::size_t getDimension() { return BaseType::getDimension(); }… Read More MSVC insists on using inaccessible member from private-inherited base class, although it was re-defined as public

I’ve been stuck working on this painful program for a few hours now in Visual Studio 2022, and am struggling to wrap my head around why it keeps deleting text in a different file each time I run it. For reference: For a C++ related assignment I have, I have to design a program that… Read More Running a C++ Script In Visual Studio 2022 keeps deleting text within a file, not sure what's wrong with the code

enter image description hereI tried many things, but I fell into a swamp. When you enter an odd number, one star in the last row pops out and you try to erase it, but it’s hard… #include<iostream> using namespace std; int main() { int num, star, line; cout << "num "; cin >> num; for… Read More How do I erase the last star?

I know visual C++ 2015-2022 is installed because: A. I see it in Apps & Features (Microsoft Visual C++ 2015-2022 Redistributable (x64) – 14.31.31103 B. I see it in registry HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\X64 but %VCINSTALLDIR% is not set on my path, and I cant find the dll’s anywhere. I need to be really specific with my IT… Read More Where are the Microsoft Visual C++ 2015-2022 Redistributable (x64) packages installed?

I have the following code where behavior is not clear to me. Can some one please help how conditional operator evaluate the following code and output ans as 1 #include int main() { bool delayMessages=0; bool Delay = false; delayMessages += Delay ? 1 : -1; std::cout << "Hello world!"<<delayMessages; return 0; } Ans: Hello… Read More what is the output of conditional operator with unary operator

First I thought the compile time would take forever, or I take a weird error, but that didn’t happen the code runs for a while and then crash This is my code: #include <iostream> inline void say_hello() { std::cout << "hello\n"; say_hello(); } int main() { say_hello(); } And I thought the compiler will convert… Read More What happens if you inline a function that calls it self in C++