src/base/port.h

// Copyright 2010-2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * 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.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS 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 COPYRIGHT
// OWNER OR 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.

#ifndef MOZC_BASE_PORT_H_
#define MOZC_BASE_PORT_H_


#include <sys/types.h>
#include <cstddef>

// basic macros
typedef signed char         int8;
typedef short               int16;
typedef int                 int32;
typedef unsigned char      uint8;
typedef unsigned short     uint16;
typedef unsigned int       uint32;
typedef unsigned int       char32;
#ifdef OS_WIN
typedef unsigned __int64   uint64;
typedef __int64             int64;
#else
typedef unsigned long long uint64;
typedef long long           int64;
#endif  // OS_WIN

#define atoi32 atoi
#define strto32 strtol
#define strto64 strtoll

#include <stdint.h>

#ifdef _MSC_VER
#define snprintf _snprintf_s
#define strtoull _strtoui64
#define strtoll  _strtoi64
#endif  // _MSC_VER

template <typename T, size_t N>
char (&ArraySizeHelper(T (&array)[N]))[N];

#ifndef _MSC_VER
template <typename T, size_t N>
char (&ArraySizeHelper(const T (&array)[N]))[N];
#endif  // !_MSC_VER

#define arraysize(array) (sizeof(ArraySizeHelper(array)))

#define GG_LONGLONG(x) x##LL
#define GG_ULONGLONG(x) x##ULL

#ifdef _MSC_VER
// 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
#define GG_LL_FORMAT "ll"  // As in "%lld". Note that "q" is poor form also.
#define GG_LL_FORMAT_W L"ll"
#endif  // _MSC_VER

// INT_MIN, INT_MAX, UINT_MAX family at Google
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) 0x80);
static const  int8  kint8max   = ((  int8) 0x7F);
static const  int16 kint16min  = (( int16) 0x8000);
static const  int16 kint16max  = (( int16) 0x7FFF);
static const  int32 kint32min  = (( int32) 0x80000000);
static const  int32 kint32max  = (( int32) 0x7FFFFFFF);
static const  int64 kint64min  = (( int64) GG_LONGLONG(0x8000000000000000));
static const  int64 kint64max  = (( int64) GG_LONGLONG(0x7FFFFFFFFFFFFFFF));

#define DISALLOW_COPY_AND_ASSIGN(TypeName)    \
    TypeName(const TypeName&) = delete;       \
    void operator=(const TypeName&) = delete

#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName)  \
    TypeName() = delete;                          \
    DISALLOW_COPY_AND_ASSIGN(TypeName)

// Macro for annotating implicit fall-through
// TODO(team): Implement this.
#define  FALLTHROUGH_INTENDED do { } while (0)

#if defined(__GNUC__) || defined(__clang__)
// Tell the compiler to do printf format string checking if the
// compiler supports it; see the 'format' attribute in
// <http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Function-Attributes.html>.
//
// N.B.: As the GCC manual states, "[s]ince non-static C++ methods
// have an implicit 'this' argument, the arguments of such methods
// should be counted from two, not one."
#define PRINTF_ATTRIBUTE(string_index, first_to_check) \
    __attribute__((__format__ (__printf__, string_index, first_to_check)))
#define SCANF_ATTRIBUTE(string_index, first_to_check) \
    __attribute__((__format__ (__scanf__, string_index, first_to_check)))
#else
#define PRINTF_ATTRIBUTE(string_index, first_to_check)
#define SCANF_ATTRIBUTE(string_index, first_to_check)
#endif  // __GNUC__ || __clang__

#define AS_STRING(x)   AS_STRING_INTERNAL(x)
#define AS_STRING_INTERNAL(x)   #x


// TODO(yukawa): Simplify following includes
#include "base/flags.h"

#endif  // MOZC_BASE_PORT_H_