Does "new CLASS" return CLASS or CLASS*

Question

This may seem really simple, but I don't know how to actually make a program that tells me this.

"but I don't know how to actually make a program that tells me this." try `foo* f = new foo;` and `foo f = new foo;` only one of them is not a compiler error — 463035818_is_not_an_ai, May 10 '22 at 11:24
time to get used to a good reference right from the start. I suggest this one: https://en.cppreference.com/w/cpp/language/new — 463035818_is_not_an_ai, May 10 '22 at 11:26
`#include #include struct CLASS {}; int main() { auto x = new CLASS; std::cout << typeid(x).name() << "\n"; }` — Eljay, May 10 '22 at 11:31
A [good book](https://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list) is more useful to you at this point than a language reference. — molbdnilo, May 10 '22 at 11:40
_I don't know how to actually make a program that tells me this._ https://wandbox.org/permlink/l8HtwzyWLP6D7Gx7 — Paul Sanders, May 10 '22 at 12:58

score 2 · Accepted Answer · answered May 10 '22 at 11:25

2

As stated in comments, new will always give you a pointer.

But as new implies delete, I strongly advise you to take a look at a concept call RAII, especially why it's so popular.

answered May 10 '22 at 11:25

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score 1 · Answer 2 · answered May 10 '22 at 11:30

Does "new CLASS" return CLASS or CLASS*

It returns a pointer to the type of the object that you're trying to allocate.

From new expression:

The new expression attempts to allocate storage and then attempts to construct and initialize either a single unnamed object, or an unnamed array of objects in the allocated storage. The new-expression returns a prvalue pointer to the constructed object or, if an array of objects was constructed, a pointer to the initial element of the array.

Does "new CLASS" return CLASS or CLASS*

2 Answers2