On Mon, Jul 8, 2019 at 5:29 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > > On Mon, 8 Jul 2019 at 14:53, Unidef <unidef@xxxxxxxxxx> wrote: > > > > Is it possible to have c or c++ natively have multi dimensional arrays? Instead of using some bourgeois macro function? > > This doesn't seem like a question about GCC development, so is > off-topic on this mailing list. > > If you want to know if it's possible with GCC, then you should use the > gcc-help list. If you want to know if it's possible in C or C++ > generally, then you should use some other forum dedicated to C and/or > C++. > > They do support multidimensional arrays already, but I assume you mean > so you can access them like arr[1,2,3] rather than arr[1][2][3]. The > language grammar doesn't currently allow that, because or the meaning > of the comma operator, but it might be possible one day in C++, see > http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1161r2.html > for a proposed step in that direction. For C there's also the possibility to use VLAs like int index_at (int *p, int n, int m, int i, int j) { return (*(int (*)[n][m])p)[i][j]; // index [i][j] off int[m][n] } > Please take replies to a more appropriate forum.
