How is the sum of three doubles not a double?! int main() { auto answer = 1.0 + 2.0 + 3.0; std::cout << answer; return 0; } output: 6 What?!

I have a program that reads the coordinates of some points from a text file using std::istringstream, and then it verifies the correctness of parsing by calling stream's operator bool(). In general it ...

In my application, I have a thread which just runs std::getline() constantly to get user input, to then send it to a server via a socket. I've made a signal handler to close the program properly when ...

I have been thinking about this for some time now, I know what I want but I am not sure how to approach the solution. I have the following interface class class connection { protected: ... ...

When the t variable is within int bounds, getline input behavior is fine. but when the value given to t is out of int bounds, getline behavior is weird why so ? cin>>t; string s(10, '&'); ...

I started with the easiest piece of code #include <iostream> using namespace std; int main() { cout << "Hello World!"; return 0; } I setup VScode to run C++ and this is ...

The setprecision() function can display numbers based on significant digits or number of decimals. But I have found a problem using this. In particular, when I start using the "fixed" ...

My focus here shall be the following quote taken from the manual description of setvbuf, which startled me: If buffer is not a null pointer, instructs the stream to use the user-provided buffer of ...

I would like to implement a CHECK() function that can work like this: int a = 1; int b = 2; int c = 1; CHECK(a == b) << "check failed" << endl; // this will abort the program ...

Using a book as a tutorial on C++ streams, I typed out the following code: //include std IO header #include <iostream> //start here int main() { int TypedLetter; std::cout << &...

I want to make cin>> work in QT, so it's needed to use the external terminal, not the application output. I followed all the instructions given in the previous answers about cin>> not ...

I have a simple class in C++20 that logs data to a file line by line for Windows platform. To ensure thread safety, I use a static std::mutex to serialize the write operations. However, I encounter an ...

I want to read a binary file into a vector. Everything seems to work fine, since all the values have the correct values. Except the binary values/data isn't inputted into data or rather data isn`t ...

I'm trying to compile StegHide from source and I got an error message, saying that iostream can't be found. I wrote the following program and compiled it with -std set to all standards that my system ...

I'm new to coding, and our teacher advised us to use Visual Studio Code as our text editor, and also to follow YouTube tutorials on how to install Msys2 and the MinGW-w64 toolchain to use as a ...