Shafik Yaghmour

Retro C++ quiz #58

Given the following in C++:

int main() {
int arr[10][20]{};

auto x = arr[1,2] ;
}

Without checking the type of x is:

A. int
B. int*
C. Depends on standard version
D. The initialization is Ill-formed

#Cplusplus
#Cpppolls

A
3.4%
B
27.6%
C
55.2%
D
13.8%
Poll ended at .
Mar 17 at 4:55pmWeb
Show threadFilipi LimiMar 17
@shafik do we have [i,j] instead of [i][j] access? since when? I lost track if so
Show thread_L4NyrlfL1I0Mar 18

@morenonatural @shafik I know that we got the possibility to write [i,j] *overloads* for operator[] with a recent-ish standard, but I'm not sure if it got implemented for the built-in array types.

EDIT: It was added in C++23 in https://wg21.link/P2128 and only concerns overloads for user-defined types, not built-in arrays. Unless there was another paper that also did the change to built-in arrays.