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-rw-r--r--core/encoding/json/unmarshal.odin2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/encoding/json/unmarshal.odin b/core/encoding/json/unmarshal.odin
index 33fd104b7..c70b8d39a 100644
--- a/core/encoding/json/unmarshal.odin
+++ b/core/encoding/json/unmarshal.odin
@@ -433,7 +433,7 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
}
field_used_bytes := (reflect.size_of_typeid(ti.id)+7)/8
- field_used := intrinsics.alloca(field_used_bytes, 1)
+ field_used := intrinsics.alloca(field_used_bytes + 1, 1) // + 1 to not overflow on size_of 0 types.
intrinsics.mem_zero(field_used, field_used_bytes)
use_field_idx := -1