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// Copyright 2014 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Basic integer type definitions for various platforms
//
// This code is compiled directly on many platforms, including client
// platforms like Windows, Mac, and embedded systems. Before making
// any changes here, make sure that you're not breaking any platforms.
//
#ifndef BASE_INTEGRAL_TYPES_H_
#define BASE_INTEGRAL_TYPES_H_
// These typedefs are also defined in base/swig/google.swig. In the
// SWIG environment, we use those definitions and avoid duplicate
// definitions here with an ifdef. The definitions should be the
// same in both files, and ideally be only defined in this file.
#ifndef SWIG
// Standard typedefs
// All Google2 code is compiled with -funsigned-char to make "char"
// unsigned. Google2 code therefore doesn't need a "uchar" type.
typedef signed char schar;
typedef signed char int8;
typedef short int16;
typedef int int32;
#ifdef COMPILER_MSVC
typedef __int64 int64;
#else
typedef long long int64;
#endif /* COMPILER_MSVC */
// NOTE: unsigned types are DANGEROUS in loops and other arithmetical
// places. Use the signed types unless your variable represents a bit
// pattern (eg a hash value) or you really need the extra bit. Do NOT
// use 'unsigned' to express "this value should always be positive";
// use assertions for this.
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
#ifdef COMPILER_MSVC
typedef unsigned __int64 uint64;
#else
typedef unsigned long long uint64;
#endif /* COMPILER_MSVC */
// A type to represent a Unicode code-point value. As of Unicode 4.0,
// such values require up to 21 bits.
// (For type-checking on pointers, make this explicitly signed,
// and it should always be the signed version of whatever int32 is.)
typedef signed int char32;
// A type to represent a natural machine word (for e.g. efficiently
// scanning through memory for checksums or index searching). Don't use
// this for storing normal integers. Ideally this would be just
// unsigned int, but our 64-bit architectures use the LP64 model
// (http://www.opengroup.org/public/tech/aspen/lp64_wp.htm), hence
// their ints are only 32 bits. We want to use the same fundamental
// type on all archs if possible to preserve *printf() compatability.
typedef unsigned long uword_t;
#endif /* SWIG */
// long long macros to be used because gcc and vc++ use different suffixes,
// and different size specifiers in format strings
#undef GG_LONGLONG
#undef GG_ULONGLONG
#undef GG_LL_FORMAT
#ifdef COMPILER_MSVC /* if Visual C++ */
// VC++ long long suffixes
#define GG_LONGLONG(x) x##I64
#define GG_ULONGLONG(x) x##UI64
// Length modifier in printf format string for int64's (e.g. within %d)
#define GG_LL_FORMAT "I64" // As in printf("%I64d", ...)
#define GG_LL_FORMAT_W L"I64"
#else /* not Visual C++ */
#define GG_LONGLONG(x) x##LL
#define GG_ULONGLONG(x) x##ULL
#define GG_LL_FORMAT "ll" // As in "%lld". Note that "q" is poor form also.
#define GG_LL_FORMAT_W L"ll"
#endif // COMPILER_MSVC
static const uint8 kuint8max = (( uint8) 0xFF);
static const uint16 kuint16max = ((uint16) 0xFFFF);
static const uint32 kuint32max = ((uint32) 0xFFFFFFFF);
static const uint64 kuint64max = ((uint64) GG_LONGLONG(0xFFFFFFFFFFFFFFFF));
static const int8 kint8min = (( int8) ~0x7F);
static const int8 kint8max = (( int8) 0x7F);
static const int16 kint16min = (( int16) ~0x7FFF);
static const int16 kint16max = (( int16) 0x7FFF);
static const int32 kint32min = (( int32) ~0x7FFFFFFF);
static const int32 kint32max = (( int32) 0x7FFFFFFF);
static const int64 kint64min = (( int64) GG_LONGLONG(~0x7FFFFFFFFFFFFFFF));
static const int64 kint64max = (( int64) GG_LONGLONG(0x7FFFFFFFFFFFFFFF));
// TODO(jyrki): remove this eventually.
// No object has kIllegalFprint as its Fingerprint.
typedef uint64 Fprint;
static const Fprint kIllegalFprint = 0;
static const Fprint kMaxFprint = GG_ULONGLONG(0xFFFFFFFFFFFFFFFF);
#endif // BASE_INTEGRAL_TYPES_H_
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