/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_BASE_BASICTYPES_H_
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#define WEBRTC_BASE_BASICTYPES_H_
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#include <stddef.h> // for NULL, size_t
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#include <stdint.h> // for uintptr_t and (u)int_t types.
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#ifdef HAVE_CONFIG_H
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#include "config.h" // NOLINT
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#endif
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// Detect compiler is for x86 or x64.
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#if defined(__x86_64__) || defined(_M_X64) || \
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defined(__i386__) || defined(_M_IX86)
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#define CPU_X86 1
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#endif
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// Detect compiler is for arm.
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#if defined(__arm__) || defined(_M_ARM)
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#define CPU_ARM 1
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#endif
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#if defined(CPU_X86) && defined(CPU_ARM)
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#error CPU_X86 and CPU_ARM both defined.
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#endif
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#if !defined(RTC_ARCH_CPU_BIG_ENDIAN) && !defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
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// x86, arm or GCC provided __BYTE_ORDER__ macros
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#if CPU_X86 || CPU_ARM || \
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(defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
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#define RTC_ARCH_CPU_LITTLE_ENDIAN
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#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define RTC_ARCH_CPU_BIG_ENDIAN
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#else
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#error RTC_ARCH_CPU_BIG_ENDIAN or RTC_ARCH_CPU_LITTLE_ENDIAN should be defined.
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#endif
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#endif
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#if defined(RTC_ARCH_CPU_BIG_ENDIAN) && defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
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#error RTC_ARCH_CPU_BIG_ENDIAN and RTC_ARCH_CPU_LITTLE_ENDIAN both defined.
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#endif
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#if defined(WEBRTC_WIN)
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typedef int socklen_t;
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#endif
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// The following only works for C++
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#ifdef __cplusplus
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#ifndef ALIGNP
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#define ALIGNP(p, t) \
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(reinterpret_cast<uint8_t*>(((reinterpret_cast<uintptr_t>(p) + \
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((t) - 1)) & ~((t) - 1))))
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#endif
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#define RTC_IS_ALIGNED(p, a) (!((uintptr_t)(p) & ((a) - 1)))
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// Use these to declare and define a static local variable that gets leaked so
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// that its destructors are not called at exit.
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#define RTC_DEFINE_STATIC_LOCAL(type, name, arguments) \
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static type& name = *new type arguments
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#endif // __cplusplus
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#endif // WEBRTC_BASE_BASICTYPES_H_
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