I want to create a program that will output two arrays sequentially. You cannot remove the num variable, since this code fragment is only a small part of a larger program. The problem here is related to declaring arrays.

I am working around to resolve CSES Introductory problem’s algorithm – Increasing Array via c++. I need help, please.

I am encountering an “identifier not found” error for open, even though I have included the required headers (<fcntl.h>). My code involves file operations using open() and related functions. Why is this error occurring?

I look at the guide on how to work with SFML and there it is clearly visible that it transfers the image file to a texture object. I get the following error: “There is no suitable user-defined conversion from “sf::image” to “const std::string””

I’m writing code in C++ that when performing a combo of AND and XOR calculations, I want the XOR to be calculated first.

In my main function, the user inputs an ID number as a string variable which is then passed to the function above. I have tested multiple ID numbers that are in the txt file, and all of them return fail. So, I am assuming this is an issue of the function never reaching the “found = true” statement, but I cannot figure out why. The txt file just has ID numbers and names in the following format:

Why does this compile on MS Visual C++?

Here is my code:

The following fails to compile on all MSVC, Clang and GCC:

From standard: “The temporary to which the reference is bound or the temporary that is the complete object of a subobject to which the reference is bound persists for the lifetime of the reference except…” (exceptions do not apply). An example from the standard that works fine: