Inspired by comments to my answer here.Is this sequence of steps legal in C standard (C11)?Or equivalently as code:
I'm trying to integrate a C library into my C++ project. The C library has functions which take function pointers as arguments but these function pointers are written as typedefs.
They are both used as a generic method of calling functions, member functions and generally anything that is callable. From cppreference the only real difference I see is that in std::invoke the function parameters (however many they are) are forwarded to the function, whereas in std::apply the parameters are passed...
The task is to create a function that searches within the first numEls of a list if ints 'data', to find two adjacent integers that sum to 'pairSum' and return a pointer to the position of the first of the two integers. If there are not two ints that sum...
In the following C++ code, the line bar<func_ptr>(); //does not work causes a compilation error:
I found this question on an online exam. This is the code:I saw the answer after the test. This is the answer:
The following is using a function pointer in C:It compiles with $gcc main.c.The following is my attempt to migrate it to C++:
I am writing a kind of container class, for which I would like to offer an apply method which evaluates a function on the content of the container.
How do you declare a function pointer that points to a function that has the same parameters and also returns a pointer to a function with the same parameters.