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API Reference
Preliminaries
All declara ons are in
jansson.h
, so it’s enough to
#include <jansson.h>
in each source file.
All constants are prefixed with
JSON_
(except for those describing the library version, prefixed with
JANSSON_
). Other iden fiers are prefixed with
json_
. Type names are suffixed with
_t
and
typedef
‘d
so that the
struct
keyword need not be used.
Library Version
The Jansson version is of the form A.B.C, where A is the major version, B is the minor version and C
is the micro version. If the micro version is zero, it’s omi ed from the version string, i.e. the version
string is just A.B.
When a new release only fixes bugs and doesn’t add new features or func onality, the micro version
is incremented. When new features are added in a backwards compa ble way, the minor version is
incremented and the micro version is set to zero. When there are backwards incompa ble changes,
the major version is incremented and others are set to zero.
The following preprocessor constants specify the current version of the library:
JANSSON_MAJOR_VERSION , JANSSON_MINOR_VERSION , JANSSON_MICRO_VERSION
Integers specifying the major, minor and micro versions, respec vely.
JANSSON_VERSION
A string representa on of the current version, e.g.
"1.2.1"
or
"1.3"
.
JANSSON_VERSION_HEX
A 3-byte hexadecimal representa on of the version, e.g.
0x010201
for version 1.2.1 and 0x010300
for version 1.3. This is useful in numeric comparisons, e.g.:
#if JANSSON_VERSION_HEX >= 0x010300
/* Code specific to version 1.3 and above */ #endif
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张子楠Aaron2018-06-29和官方的一样....有些浪费了
