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Fixes DirectAllocator Windows implementation to call HeapFree when new_size == 0

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tgschultz 2019-04-20 17:24:40 +00:00 committed by Andrew Kelley
parent b864fe7e23
commit 22f5e5fd3e
1 changed files with 7 additions and 0 deletions
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7
std/heap.zig
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@ -151,6 +151,13 @@ pub const DirectAllocator = struct {
const old_record_addr = old_adjusted_addr + old_mem.len;
const root_addr = @intToPtr(*align(1) usize, old_record_addr).*;
const old_ptr = @intToPtr(*c_void, root_addr);
if(new_size == 0)
{
if(os.windows.HeapFree(self.heap_handle.?, 0, old_ptr) == 0) unreachable;
return old_mem[0..0];
}
const amt = new_size + new_align + @sizeOf(usize);
const new_ptr = os.windows.HeapReAlloc(
self.heap_handle.?,