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Diffstat (limited to 'ext/ffi_c/FunctionInfo.c')
-rw-r--r--ext/ffi_c/FunctionInfo.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/ext/ffi_c/FunctionInfo.c b/ext/ffi_c/FunctionInfo.c
index e3391c3..6aa93d9 100644
--- a/ext/ffi_c/FunctionInfo.c
+++ b/ext/ffi_c/FunctionInfo.c
@@ -183,7 +183,8 @@ fntype_initialize(int argc, VALUE* argv, VALUE self)
if (rb_obj_is_kind_of(type, rbffi_FunctionTypeClass)) {
REALLOC_N(fnInfo->callbackParameters, VALUE, fnInfo->callbackCount + 1);
- RB_OBJ_WRITE(self, &fnInfo->callbackParameters[fnInfo->callbackCount++], type);
+ RB_OBJ_WRITE(self, &fnInfo->callbackParameters[fnInfo->callbackCount], type);
+ fnInfo->callbackCount++;
}
if (rb_obj_is_kind_of(type, rbffi_StructByValueClass)) {