1New in SVN
2----------
3
4 *  Updated the type system's behavior, in order to better support backwards
5    compatibility with code that was written before 64-bit integer support was
6    introduced. Here's how it works now:
7
8     *  isInt, isInt64, isUInt, and isUInt64 return true if and only if the
9        value can be exactly represented as that type. In particular, a value
10        constructed with a double like 17.0 will now return true for all of
11        these methods.
12
13     *  isDouble and isFloat now return true for all numeric values, since all
14        numeric values can be converted to a double or float without
15        truncation. Note however that the conversion may not be exact -- for
16        example, doubles cannot exactly represent all integers above 2^53 + 1.
17
18     *  isBool, isNull, isString, isArray, and isObject now return true if and
19        only if the value is of that type.
20
21     *  isConvertibleTo(fooValue) indicates that it is safe to call asFoo.
22        (For each type foo, isFoo always implies isConvertibleTo(fooValue).)
23        asFoo returns an approximate or exact representation as appropriate.
24        For example, a double value may be truncated when asInt is called.
25
26     *  For backwards compatibility with old code, isConvertibleTo(intValue)
27        may return false even if type() == intValue. This is because the value
28        may have been constructed with a 64-bit integer larger than maxInt,
29        and calling asInt() would cause an exception. If you're writing new
30        code, use isInt64 to find out whether the value is exactly
31        representable using an Int64, or asDouble() combined with minInt64 and
32        maxInt64 to figure out whether it is approximately representable.
33
34* Value
35  - Patch #10: BOOST_FOREACH compatibility. Made Json::iterator more
36    standard compliant, added missing iterator_category and value_type
37	typedefs (contribued by Robert A. Iannucci).
38
39* Compilation
40
41  - New CMake based build system. Based in part on contribution from
42    Igor Okulist and Damien Buhl (Patch #14).
43
44  - New header json/version.h now contains version number macros
45    (JSONCPP_VERSION_MAJOR, JSONCPP_VERSION_MINOR, JSONCPP_VERSION_PATCH
46    and JSONCPP_VERSION_HEXA).
47
48  - Patch #11: added missing JSON_API on some classes causing link issues
49    when building as a dynamic library on Windows
50	(contributed by Francis Bolduc).
51
52  - Visual Studio DLL: suppressed warning "C4251: <data member>: <type>
53    needs to have dll-interface to be used by..." via pragma push/pop
54    in json-cpp headers.
55
56  - Added Travis CI intregration: https://travis-ci.org/blep/jsoncpp-mirror
57
58* Bug fixes
59  - Patch #15: Copy constructor does not initialize allocated_ for stringValue
60    (contributed by rmongia).
61
62  - Patch #16: Missing field copy in Json::Value::iterator causing infinite
63    loop when using experimental internal map (#define JSON_VALUE_USE_INTERNAL_MAP)
64	(contributed by Ming-Lin Kao).
65
66
67  New in JsonCpp 0.6.0:
68  ---------------------
69
70* Compilation
71
72  - LD_LIBRARY_PATH and LIBRARY_PATH environment variables are now
73    propagated to the build environment as this is required for some
74    compiler installation.
75
76  - Added support for Microsoft Visual Studio 2008 (bug #2930462):
77    The platform "msvc90" has been added.
78
79    Notes: you need to setup the environment by running vcvars32.bat
80    (e.g. MSVC 2008 command prompt in start menu) before running scons.
81
82  - Added support for amalgamated source and header generation (a la sqlite).
83    Refer to README.txt section "Generating amalgamated source and header"
84    for detail.
85
86* Value
87
88  - Removed experimental ValueAllocator, it caused static
89    initialization/destruction order issues (bug #2934500).
90    The DefaultValueAllocator has been inlined in code.
91
92  - Added support for 64 bits integer:
93
94    Types Json::Int64 and Json::UInt64 have been added. They are aliased
95	to 64 bits integers on system that support them (based on __int64 on
96	Microsoft Visual Studio platform, and long long on other platforms).
97
98	Types Json::LargestInt and Json::LargestUInt have been added. They are
99	aliased to the largest integer type supported:
100	either Json::Int/Json::UInt or Json::Int64/Json::UInt64 respectively.
101
102	Json::Value::asInt() and Json::Value::asUInt() still returns plain
103	"int" based types, but asserts if an attempt is made to retrieve
104	a 64 bits value that can not represented as the return type.
105
106	Json::Value::asInt64() and Json::Value::asUInt64() have been added
107	to obtain the 64 bits integer value.
108
109	Json::Value::asLargestInt() and Json::Value::asLargestUInt() returns
110	the integer as a LargestInt/LargestUInt respectively. Those functions
111	functions are typically used when implementing writer.
112
113	The reader attempts to read number as 64 bits integer, and fall back
114	to reading a double if the number is not in the range of 64 bits
115	integer.
116
117    Warning: Json::Value::asInt() and Json::Value::asUInt() now returns
118    long long. This changes break code that was passing the return value
119    to *printf() function.
120
121    Support for 64 bits integer can be disabled by defining the macro
122	JSON_NO_INT64 (uncomment it in json/config.h for example), though
123	it should have no impact on existing usage.
124
125  - The type Json::ArrayIndex is used for indexes of a JSON value array. It
126    is an unsigned int (typically 32 bits).
127
128  - Array index can be passed as int to operator[], allowing use of literal:
129    Json::Value array;
130	array.append( 1234 );
131	int value = array[0].asInt();  // did not compile previously
132
133  - Added float Json::Value::asFloat() to obtain a floating point value as a
134    float (avoid lost of precision warning caused by used of asDouble()
135    to initialize a float).
136
137* Reader
138
139  - Renamed Reader::getFormatedErrorMessages() to getFormattedErrorMessages.
140    Bug #3023708 (Formatted has 2 't'). The old member function is deprecated
141    but still present for backward compatibility.
142
143* Tests
144
145  - Added test to ensure that the escape sequence "\/" is corrected handled
146    by the parser.
147
148* Bug fixes
149
150  - Bug #3139677: JSON [1 2 3] was incorrectly parsed as [1, 3]. Error is now
151    correctly detected.
152
153  - Bug #3139678: stack buffer overflow when parsing a double with a
154    length of 32 characters.
155
156  - Fixed Value::operator <= implementation (had the semantic of operator >=).
157    Found when adding unit tests for comparison operators.
158
159  - Value::compare() is now const and has an actual implementation with
160    unit tests.
161
162  - Bug #2407932: strpbrk() can fail for NULL pointer.
163
164  - Bug #3306345: Fixed minor typo in Path::resolve().
165
166  - Bug #3314841/#3306896: errors in amalgamate.py
167
168  - Fixed some Coverity warnings and line-endings.
169
170* License
171
172  - See file LICENSE for details. Basically JsonCpp is now licensed under
173    MIT license, or public domain if desired and recognized in your jurisdiction.
174    Thanks to Stephan G. Beal [http://wanderinghorse.net/home/stephan/]) who
175	helped figuring out the solution to the public domain issue.
176