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 BASE_COMMANDLINEFLAGS_DECLARE_H_ 38 #define BASE_COMMANDLINEFLAGS_DECLARE_H_ 39 40 #include <string> 41 #if 0 42 #include <stdint.h> // the normal place uint16_t is defined 43 #endif 44 #if 1 45 #include <sys/types.h> // the normal place u_int16_t is defined 46 #endif 47 #if 0 48 #include <inttypes.h> // a third place for uint16_t or u_int16_t 49 #endif 50 51 namespace google { 52 #if 0 // the C99 format 53 typedef int32_t int32; 54 typedef uint32_t uint32; 55 typedef int64_t int64; 56 typedef uint64_t uint64; 57 #elif 0 // the BSD format 58 typedef int32_t int32; 59 typedef u_int32_t uint32; 60 typedef int64_t int64; 61 typedef u_int64_t uint64; 62 #elif 1 // the windows (vc7) format 63 typedef __int32 int32; 64 typedef unsigned __int32 uint32; 65 typedef __int64 int64; 66 typedef unsigned __int64 uint64; 67 #else 68 #error Do not know how to define a 32-bit integer quantity on your system 69 #endif 70 } 71 72 73 #if defined(_MSC_VER) && !defined(GFLAGS_DLL_DECLARE_FLAG) 74 # define GFLAGS_DLL_DECLARE_FLAG __declspec(dllimport) 75 #endif 76 77 namespace fLS { 78 79 // The meaning of "string" might be different between now and when the 80 // macros below get invoked (e.g., if someone is experimenting with 81 // other string implementations that get defined after this file is 82 // included). Save the current meaning now and use it in the macros. 83 typedef std::string clstring; 84 85 } 86 87 #define DECLARE_VARIABLE(type, shorttype, name) \ 88 /* We always want to import declared variables, dll or no */ \ 89 namespace fL##shorttype { extern GFLAGS_DLL_DECLARE_FLAG type FLAGS_##name; } \ 90 using fL##shorttype::FLAGS_##name 91 92 #define DECLARE_bool(name) \ 93 DECLARE_VARIABLE(bool, B, name) 94 95 #define DECLARE_int32(name) \ 96 DECLARE_VARIABLE(::google::int32, I, name) 97 98 #define DECLARE_int64(name) \ 99 DECLARE_VARIABLE(::google::int64, I64, name) 100 101 #define DECLARE_uint64(name) \ 102 DECLARE_VARIABLE(::google::uint64, U64, name) 103 104 #define DECLARE_double(name) \ 105 DECLARE_VARIABLE(double, D, name) 106 107 #define DECLARE_string(name) \ 108 namespace fLS { \ 109 using ::fLS::clstring; \ 110 extern GFLAGS_DLL_DECLARE_FLAG ::fLS::clstring& FLAGS_##name; \ 111 } \ 112 using fLS::FLAGS_##name 113 114 #endif // BASE_COMMANDLINEFLAGS_DECLARE_H_ 115