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ArenaAllocator: use full capacity

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Jonathan Marler
2020-06-28 23:44:48 -06:00
committed by Andrew Kelley
parent 35e8876c23
commit 67e97a1f0f
1 changed files with 2 additions and 3 deletions
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5
lib/std/heap/arena_allocator.zig
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@@ -49,9 +49,8 @@ pub const ArenaAllocator = struct {
const actual_min_size = minimum_size + (@sizeOf(BufNode) + 16);
const big_enough_len = prev_len + actual_min_size;
const len = big_enough_len + big_enough_len / 2;
const buf = try self.child_allocator.alignedAlloc(u8, @alignOf(BufNode), len);
const buf_node_slice = mem.bytesAsSlice(BufNode, buf[0..@sizeOf(BufNode)]);
const buf_node = &buf_node_slice[0];
const buf = try self.child_allocator.callAllocFn(len, @alignOf(BufNode), 1);
const buf_node = @ptrCast(*BufNode, @alignCast(@alignOf(BufNode), buf.ptr));
buf_node.* = BufNode{
.data = buf,
.next = null,