| // PR c++/91364 - Implement P0388R4: Permit conversions to arrays of unknown bound. |
| // { dg-do run { target c++20 } } |
| |
| // Ranking of list-initialization sequences |
| int b(int (&&)[] ) { return 1; } // #1 |
| int b(long (&&)[] ) { return 2; } // #2 |
| int b(int (&&)[1]) { return 3; } // #3 |
| int b(long (&&)[1]) { return 4; } // #4 |
| int b(int (&&)[2]) { return 5; } // #5 |
| |
| /* Here, |
| -- #1, #3 and #5 should rank better than both #2 and #4, as no promotion |
| is necessitated. |
| -- #1 should rank worse than #3, being far less specialized. |
| -- #1 should rank better than #5, as the latter requires a larger array |
| temporary. (#3 also ranks better than #5 for the same reason--cf. core |
| issue 1307). */ |
| |
| int |
| main () |
| { |
| if (b({1}) != 3) |
| __builtin_abort (); |
| } |
