1// Copyright (c) 1999, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30// --- 31// 32// Revamped and reorganized by Craig Silverstein 33// 34// This is the file that should be included by any file which declares 35// command line flag. 36 37#ifndef GFLAGS_DECLARE_H_ 38#define GFLAGS_DECLARE_H_ 39 40 41// --------------------------------------------------------------------------- 42// Namespace of gflags library symbols. 43#define GFLAGS_NAMESPACE google 44 45// --------------------------------------------------------------------------- 46// Windows DLL import/export. 47 48// We always want to import the symbols of the gflags library 49#ifndef GFLAGS_DLL_DECL 50# if 0 && defined(_MSC_VER) 51# define GFLAGS_DLL_DECL __declspec(dllimport) 52# else 53# define GFLAGS_DLL_DECL 54# endif 55#endif 56 57// We always want to import variables declared in user code 58#ifndef GFLAGS_DLL_DECLARE_FLAG 59# ifdef _MSC_VER 60# define GFLAGS_DLL_DECLARE_FLAG __declspec(dllimport) 61# else 62# define GFLAGS_DLL_DECLARE_FLAG 63# endif 64#endif 65 66// --------------------------------------------------------------------------- 67// Flag types 68#include <string> 69#if 1 70# include <stdint.h> // the normal place uint32_t is defined 71#elif 1 72# include <sys/types.h> // the normal place u_int32_t is defined 73#elif 0 74# include <inttypes.h> // a third place for uint32_t or u_int32_t 75#endif 76 77namespace GFLAGS_NAMESPACE { 78 79#if 0 // C99 80typedef int32_t int32; 81typedef uint32_t uint32; 82typedef int64_t int64; 83typedef uint64_t uint64; 84#elif 0 // BSD 85typedef int32_t int32; 86typedef u_int32_t uint32; 87typedef int64_t int64; 88typedef u_int64_t uint64; 89#elif 1 // Windows 90typedef __int32 int32; 91typedef unsigned __int32 uint32; 92typedef __int64 int64; 93typedef unsigned __int64 uint64; 94#else 95# error Do not know how to define a 32-bit integer quantity on your system 96#endif 97 98} // namespace GFLAGS_NAMESPACE 99 100 101namespace fLS { 102 103// The meaning of "string" might be different between now and when the 104// macros below get invoked (e.g., if someone is experimenting with 105// other string implementations that get defined after this file is 106// included). Save the current meaning now and use it in the macros. 107typedef std::string clstring; 108 109} // namespace fLS 110 111 112#define DECLARE_VARIABLE(type, shorttype, name) \ 113 /* We always want to import declared variables, dll or no */ \ 114 namespace fL##shorttype { extern GFLAGS_DLL_DECLARE_FLAG type FLAGS_##name; } \ 115 using fL##shorttype::FLAGS_##name 116 117#define DECLARE_bool(name) \ 118 DECLARE_VARIABLE(bool, B, name) 119 120#define DECLARE_int32(name) \ 121 DECLARE_VARIABLE(::GFLAGS_NAMESPACE::int32, I, name) 122 123#define DECLARE_int64(name) \ 124 DECLARE_VARIABLE(::GFLAGS_NAMESPACE::int64, I64, name) 125 126#define DECLARE_uint64(name) \ 127 DECLARE_VARIABLE(::GFLAGS_NAMESPACE::uint64, U64, name) 128 129#define DECLARE_double(name) \ 130 DECLARE_VARIABLE(double, D, name) 131 132#define DECLARE_string(name) \ 133 /* We always want to import declared variables, dll or no */ \ 134 namespace fLS { \ 135 using ::fLS::clstring; \ 136 extern GFLAGS_DLL_DECLARE_FLAG ::fLS::clstring& FLAGS_##name; \ 137 } \ 138 using fLS::FLAGS_##name 139 140 141#endif // GFLAGS_DECLARE_H_ 142