base/basictypes.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This file contains definitions of our old basic integral types
   6 // ((u)int{8,16,32,64}) and further includes. I recommend that you use the C99
   7 // standard types instead, and include <stdint.h>/<stddef.h>/etc. as needed.
   8 // Note that the macros and macro-like constructs that were formerly defined in
   9 // this file are now available separately in base/macros.h.
  10
  11 #ifndef BASE_BASICTYPES_H_
  12 #define BASE_BASICTYPES_H_
  13
  14 #include <limits.h>  // So we can set the bounds of our types.
  15 #include <stddef.h>  // For size_t.
  16 #include <stdint.h>  // For intptr_t.
  17
  18 #include "base/macros.h"
  19 #include "build/build_config.h"
  20
  21 // DEPRECATED: Please use (u)int{8,16,32,64}_t instead (and include <stdint.h>).
  22 typedef int8_t int8;
  23 typedef uint8_t uint8;
  24 typedef int16_t int16;
  25 typedef uint16_t uint16;
  26 typedef int32_t int32;
  27 typedef uint32_t uint32;
  28 typedef int64_t int64;
  29 typedef uint64_t uint64;
  30
  31 // DEPRECATED: Please use std::numeric_limits (from <limits>) or
  32 // (U)INT{8,16,32,64}_{MIN,MAX} in case of globals (and include <stdint.h>).
  33 const uint8  kuint8max  =  0xFF;
  34 const uint16 kuint16max =  0xFFFF;
  35 const uint32 kuint32max =  0xFFFFFFFF;
  36 const uint64 kuint64max =  0xFFFFFFFFFFFFFFFFULL;
  37 const  int8  kint8min   = -0x7F - 1;
  38 const  int8  kint8max   =  0x7F;
  39 const  int16 kint16min  = -0x7FFF - 1;
  40 const  int16 kint16max  =  0x7FFF;
  41 const  int32 kint32min  = -0x7FFFFFFF - 1;
  42 const  int32 kint32max  =  0x7FFFFFFF;
  43 const  int64 kint64min  = -0x7FFFFFFFFFFFFFFFLL - 1;
  44 const  int64 kint64max  =  0x7FFFFFFFFFFFFFFFLL;
  45
  46 #endif  // BASE_BASICTYPES_H_