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-rw-r--r--core/mem/allocators.odin5
1 files changed, 4 insertions, 1 deletions
diff --git a/core/mem/allocators.odin b/core/mem/allocators.odin
index 0eacb1b65..cb9301f60 100644
--- a/core/mem/allocators.odin
+++ b/core/mem/allocators.odin
@@ -2223,6 +2223,9 @@ Initialize a buddy allocator.
This procedure initializes the buddy allocator `b` with a backing buffer `data`
and block alignment specified by `alignment`.
+
+`alignment` may be any power of two, but the backing buffer must be aligned to
+at least `size_of(Buddy_Block)`.
*/
buddy_allocator_init :: proc(b: ^Buddy_Allocator, data: []byte, alignment: uint, loc := #caller_location) {
assert(data != nil)
@@ -2233,7 +2236,7 @@ buddy_allocator_init :: proc(b: ^Buddy_Allocator, data: []byte, alignment: uint,
alignment = size_of(Buddy_Block)
}
ptr := raw_data(data)
- assert(uintptr(ptr) % uintptr(alignment) == 0, "data is not aligned to minimum alignment", loc)
+ assert(uintptr(ptr) % uintptr(alignment) == 0, "The data is not aligned to the minimum alignment, which must be at least `size_of(Buddy_Block)`.", loc)
b.head = (^Buddy_Block)(ptr)
b.head.size = len(data)
b.head.is_free = true