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* Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
#include <string.h>
#include <openssl/crypto.h>
* Pointer to memset is volatile so that compiler must de-reference
* the pointer and can't assume that it points to any function in
* particular (such as memset, which it then might further "optimize")
typedef void *(*memset_t)(void *, int, size_t);
static volatile memset_t memset_func = memset;
void OPENSSL_cleanse(void *ptr, size_t len)
memset_func(ptr, 0, len);