It is performance sensitive so I don't want to convert it into a common type first.You can template the do_stuff function and the compiler will check the implementation for you. If the field isn't available you will get an error message. Here is a complete example:
I'm currently learning Haskell, and have encountered the term "function application" a couple of times, without really understanding what is meant by it.
If I wanted to returns a list whose elements are equal to the corresponding element of the input list multiplied by its location in the list, I could do something like the following:
This question already has an answer here:Why does this program output 8 and not 1 (for true)?If you look at operator precedence, you will find that the left-shift operator << has a higher precedence than the logical AND operator &&.
Im dealing with a list of lines, and I need to count the hashes that occur at the beginning.and so on.
If I define a function using "undefined" like this, it type-checks.Is it possible to detect if any function is using "undefined" in the function definition, and turn it into a warning?
I am studying how to display elements of 2D array with the help of pointers. Here is the code I tried:
I want to know if there is a math expression that I can use to find this relation between two numbers.
I have a DataFrame with 2 cols ColA| ColB D 2 D 12 D 15 A 20 A 40 A 60 C 60 C 55 C 70 C 45 L 45 L 23 L 10 L 5
When I go to return a std::lock_guard in a std::pair from a function I get horrible errors. But when I package it in a class I have no problems (compiles and works as expected). I can't understand why. Details follow: