| author |  Andrew Kelley <andrew@ziglang.org> 2023-11-21 18:30:42-07:00 |
| committer | Andrew Kelley <andrew@ziglang.org> 2023-11-22 11:32:14-07:00 |
| log | f6549a956d640c1de2dc99340582950f9dc18c60 |
| tree | 6d043ee95bac012b6c65dbdf5db8cc84dd0478a8 |
| parent | d5e21a4f1a2920ef7bbe3c54feab1a3b5119bf77 |
std.ArrayList: add initBuffer to the unmanaged array list
This is useful when you want to have an array list backed by a fixed
slice of memory and no Allocator will be used.
It's an alternative to BoundedArray as you will see in the following
commit.1 files changed, 11 insertions(+), 0 deletions(-)
lib
lib/std/array_list.zig+11
| ... | ... | @@ -633,6 +633,17 @@ pub fn ArrayListAlignedUnmanaged(comptime T: type, comptime alignment: ?u29) typ |
| 633 | 633 | return self; |
| 634 | 634 | } |
| 635 | 635 | |
| 636 | /// Initialize with externally-managed memory. The buffer determines the | |
| 637 | /// capacity, and the length is set to zero. | |
| 638 | /// When initialized this way, all methods that accept an Allocator | |
| 639 | /// argument are illegal to call. | |
| 640 | pub fn initBuffer(buffer: Slice) Self { | |
| 641 | return .{ | |
| 642 | .items = buffer[0..0], | |
| 643 | .capacity = buffer.len, | |
| 644 | }; | |
| 645 | } | |
| 646 | ||
| 636 | 647 | /// Release all allocated memory. |
| 637 | 648 | pub fn deinit(self: *Self, allocator: Allocator) void { |
| 638 | 649 | allocator.free(self.allocatedSlice()); |