JsonCpp project page | Classes | Namespace | JsonCpp home page

config.h
Go to the documentation of this file.
1 // Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
2 // Distributed under MIT license, or public domain if desired and
3 // recognized in your jurisdiction.
4 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
5
6 #ifndef JSON_CONFIG_H_INCLUDED
7 #define JSON_CONFIG_H_INCLUDED
8 #include <cstddef>
9 #include <cstdint>
10 #include <istream>
11 #include <memory>
12 #include <ostream>
13 #include <sstream>
14 #include <string>
15 #include <type_traits>
16
17 // If non-zero, the library uses exceptions to report bad input instead of C
18 // assertion macros. The default is to use exceptions.
19 #ifndef JSON_USE_EXCEPTION
20 #define JSON_USE_EXCEPTION 1
21 #endif
22
23 // Temporary, tracked for removal with issue #982.
24 #ifndef JSON_USE_NULLREF
25 #define JSON_USE_NULLREF 1
26 #endif
27
31 // #define JSON_IS_AMALGAMATION
32
33 // Export macros for DLL visibility
34 #if defined(JSON_DLL_BUILD)
35 #if defined(_MSC_VER) || defined(__MINGW32__)
36 #define JSON_API __declspec(dllexport)
37 #define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
38 #elif defined(__GNUC__) || defined(__clang__)
39 #define JSON_API __attribute__((visibility("default")))
40 #endif // if defined(_MSC_VER)
41
42 #elif defined(JSON_DLL)
43 #if defined(_MSC_VER) || defined(__MINGW32__)
44 #define JSON_API __declspec(dllimport)
45 #define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
46 #endif // if defined(_MSC_VER)
47 #endif // ifdef JSON_DLL_BUILD
48
49 #if !defined(JSON_API)
50 #define JSON_API
51 #endif
52
53 #if defined(_MSC_VER) && _MSC_VER < 1800
54 #error \
55 "ERROR: Visual Studio 12 (2013) with _MSC_VER=1800 is the oldest supported compiler with sufficient C++11 capabilities"
56 #endif
57
58 #if defined(_MSC_VER) && _MSC_VER < 1900
59 // As recommended at
60 // https://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
61 extern JSON_API int msvc_pre1900_c99_snprintf(char* outBuf, size_t size,
62 const char* format, ...);
63 #define jsoncpp_snprintf msvc_pre1900_c99_snprintf
64 #else
65 #define jsoncpp_snprintf std::snprintf
66 #endif
67
68 // If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
69 // integer
70 // Storages, and 64 bits integer support is disabled.
71 // #define JSON_NO_INT64 1
72
73 // JSONCPP_OVERRIDE is maintained for backwards compatibility of external tools.
74 // C++11 should be used directly in JSONCPP.
75 #define JSONCPP_OVERRIDE override
76
77 #ifdef __clang__
78 #if __has_extension(attribute_deprecated_with_message)
79 #define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
80 #endif
81 #elif defined(__GNUC__) // not clang (gcc comes later since clang emulates gcc)
82 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
83 #define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
84 #elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
85 #define JSONCPP_DEPRECATED(message) __attribute__((__deprecated__))
86 #endif // GNUC version
87 #elif defined(_MSC_VER) // MSVC (after clang because clang on Windows emulates
88 // MSVC)
89 #define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
90 #endif // __clang__ || __GNUC__ || _MSC_VER
91
92 #if !defined(JSONCPP_DEPRECATED)
93 #define JSONCPP_DEPRECATED(message)
94 #endif // if !defined(JSONCPP_DEPRECATED)
95
96 #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ >= 6))
97 #define JSON_USE_INT64_DOUBLE_CONVERSION 1
98 #endif
99
100 #if !defined(JSON_IS_AMALGAMATION)
101
102 #include "allocator.h"
103 #include "version.h"
104
105 #endif // if !defined(JSON_IS_AMALGAMATION)
106
107 namespace Json {
108 using Int = int;
109 using UInt = unsigned int;
110 #if defined(JSON_NO_INT64)
111 using LargestInt = int;
112 using LargestUInt = unsigned int;
113 #undef JSON_HAS_INT64
114 #else // if defined(JSON_NO_INT64)
115 // For Microsoft Visual use specific types as long long is not supported
116 #if defined(_MSC_VER) // Microsoft Visual Studio
117 using Int64 = __int64;
118 using UInt64 = unsigned __int64;
119 #else // if defined(_MSC_VER) // Other platforms, use long long
120 using Int64 = int64_t;
121 using UInt64 = uint64_t;
122 #endif // if defined(_MSC_VER)
123 using LargestInt = Int64;
124 using LargestUInt = UInt64;
125 #define JSON_HAS_INT64
126 #endif // if defined(JSON_NO_INT64)
127
128 template <typename T>
129 using Allocator =
130 typename std::conditional<JSONCPP_USING_SECURE_MEMORY, SecureAllocator<T>,
131 std::allocator<T>>::type;
132 using String = std::basic_string<char, std::char_traits<char>, Allocator<char>>;
133 using IStringStream =
134 std::basic_istringstream<String::value_type, String::traits_type,
135 String::allocator_type>;
136 using OStringStream =
137 std::basic_ostringstream<String::value_type, String::traits_type,
138 String::allocator_type>;
139 using IStream = std::istream;
140 using OStream = std::ostream;
141 } // namespace Json
142
143 // Legacy names (formerly macros).
144 using JSONCPP_STRING = Json::String;
145 using JSONCPP_ISTRINGSTREAM = Json::IStringStream;
146 using JSONCPP_OSTRINGSTREAM = Json::OStringStream;
147 using JSONCPP_ISTREAM = Json::IStream;
148 using JSONCPP_OSTREAM = Json::OStream;
149
150 #endif // JSON_CONFIG_H_INCLUDED
Json::OStringStream
std::basic_ostringstream< String::value_type, String::traits_type, String::allocator_type > OStringStream
Definition: config.h:138
Json::Int
int Int
Definition: config.h:108
JSONCPP_ISTRINGSTREAM
Json::IStringStream JSONCPP_ISTRINGSTREAM
Definition: config.h:145
Json::Allocator
typename std::conditional< 0, SecureAllocator< T >, std::allocator< T > >::type Allocator
Definition: config.h:131
Json::IStream
std::istream IStream
Definition: config.h:139
msvc_pre1900_c99_snprintf
int msvc_pre1900_c99_snprintf(char *outBuf, size_t size, const char *format,...)
Definition: json_value.cpp:33
JSONCPP_OSTREAM
Json::OStream JSONCPP_OSTREAM
Definition: config.h:148
Json::UInt64
unsigned __int64 UInt64
Definition: config.h:118
version.h
Json::UInt
unsigned int UInt
Definition: config.h:109
Json::IStringStream
std::basic_istringstream< String::value_type, String::traits_type, String::allocator_type > IStringStream
Definition: config.h:135
JSONCPP_ISTREAM
Json::IStream JSONCPP_ISTREAM
Definition: config.h:147
Json::OStream
std::ostream OStream
Definition: config.h:140
Json
JSON (JavaScript Object Notation).
Definition: allocator.h:14
Json::LargestUInt
UInt64 LargestUInt
Definition: config.h:124
JSON_API
#define JSON_API
If defined, indicates that the source file is amalgamated to prevent private header inclusion.
Definition: config.h:50
allocator.h
Json::Int64
__int64 Int64
Definition: config.h:117
JSONCPP_OSTRINGSTREAM
Json::OStringStream JSONCPP_OSTRINGSTREAM
Definition: config.h:146
Json::String
std::basic_string< char, std::char_traits< char >, Allocator< char > > String
Definition: config.h:132
JSONCPP_STRING
Json::String JSONCPP_STRING
Definition: config.h:144
Json::LargestInt
Int64 LargestInt
Definition: config.h:123