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ring 0.17.3

Safe, fast, small crypto using Rust.
Documentation 
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/* ====================================================================
 * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com). */

#ifndef OPENSSL_HEADER_BASE_H
#define OPENSSL_HEADER_BASE_H


// This file should be the first included by all BoringSSL headers.

#if defined(_MSC_VER) && !defined(__clang__)
#pragma warning(push, 3)
#endif

#include <stddef.h>
#include <stdint.h>

#if defined(_MSC_VER) && !defined(__clang__)
#pragma warning(pop)
#endif

#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif

#include <ring-core/target.h>  // IWYU pragma: export

#include <ring_core_generated/prefix_symbols.h>

#include <ring-core/type_check.h>

#if defined(__APPLE__)
// Note |TARGET_OS_MAC| is set for all Apple OS variants. |TARGET_OS_OSX|
// targets macOS specifically.
#if defined(TARGET_OS_OSX) && TARGET_OS_OSX
#define OPENSSL_MACOS
#endif
#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
#define OPENSSL_IOS
#endif
#endif

// *ring* doesn't support the `BORINGSSL_SHARED_LIBRARY` configuration, so
// the default (usually "hidden") visibility is always used, even for exported
// items.
#define OPENSSL_EXPORT

// `ring::c` would need to be customized on any platform where these assertions
// fail. Keep in sync with `ring::c`.
OPENSSL_STATIC_ASSERT(sizeof(int32_t) == sizeof(int), "int isn't 32 bits.");
OPENSSL_STATIC_ASSERT(sizeof(uint32_t) == sizeof(unsigned int), "unsigned int isn't 32 bits.");
OPENSSL_STATIC_ASSERT(sizeof(size_t) == sizeof(uintptr_t), "uintptr_t and size_t differ.");
OPENSSL_STATIC_ASSERT(sizeof(size_t) <= sizeof(uint64_t), "size_t is larger than uint64_t.");
OPENSSL_STATIC_ASSERT(sizeof(size_t) >= sizeof(uint32_t), "size_t is smaller than uint32_t.");

#endif  // OPENSSL_HEADER_BASE_H