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Swfdec Reference Manual | |
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#include <swfdec/swfdec.h> #define SWFDEC_VERSION_MAJOR #define SWFDEC_VERSION_MICRO #define SWFDEC_VERSION_MINOR #define SWFDEC_VERSION_ENCODE (major, minor, micro) #define SWFDEC_VERSION #define SWFDEC_VERSION_STRING guint swfdec_version (void); const char* swfdec_version_string (void);
Swfdec has a three-part version number scheme. In this scheme, we use even vs. odd numbers to distinguish fixed points in the software vs. in-progress development, (such as from git instead of a tar file, or as a "snapshot" tar file as opposed to a "release" tar file).
_____ Major. Always 1, until we invent a new scheme. / ___ Minor. Even/Odd = Release/Snapshot (tar files) or Branch/Head (git) | / _ Micro. Even/Odd = Tar-file/git | | / 1.0.0
Here are a few examples of versions that one might see.
Releases -------- 1.0.0 - A major release 1.0.2 - A subsequent maintenance release 1.2.0 - Another major release Snapshots --------- 1.1.2 - A snapshot (working toward the 1.2.0 release) In-progress development (eg. from git) -------------------------------------- 1.0.1 - Development on a maintenance branch (toward 1.0.2 release) 1.1.1 - Development on head (toward 1.1.2 snapshot and 1.2.0 release)
Swfdec provides the ability to examine the version at either
compile-time or run-time and in both a human-readable form as well as an
encoded form suitable for direct comparison. Swfdec also provides the macro
SWFDEC_VERSION_ENCODE() to perform the encoding.
Compile-time ------------ SWFDEC_VERSION_STRING Human-readable SWFDEC_VERSION Encoded, suitable for comparison Run-time -------- swfdec_version_string() Human-readable swfdec_version() Encoded, suitable for comparison
For example, checking that the Swfdec version is greater than or equal to 1.0.0 could be achieved at compile-time or run-time as follows:
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 0, 0)
printf ("Compiling with suitable cairo version: %s\n", %CAIRO_VERSION_STRING);
#endif
if (cairo_version() >= CAIRO_VERSION_ENCODE(1, 0, 0))
printf ("Running with suitable cairo version: %s\n", cairo_version_string ());
#define SWFDEC_VERSION_MAJOR (0)
The major component of the version of Swfdec available at compile-time.
#define SWFDEC_VERSION_MICRO (0)
The micro component of the version of Swfdec available at compile-time.
#define SWFDEC_VERSION_MINOR (8)
The minor component of the version of Swfdec available at compile-time.
#define SWFDEC_VERSION_ENCODE(major, minor, micro)
This macro encodes the given Swfdec version into an integer. The numbers
returned by SWFDEC_VERSION and swfdec_version() are encoded using this
macro. Two encoded version numbers can be compared as integers. The
encoding ensures that later versions compare greater than earlier versions.
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the major component of the version number |
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the minor component of the version number |
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the micro component of the version number |
#define SWFDEC_VERSION SWFDEC_VERSION_ENCODE (SWFDEC_VERSION_MAJOR, SWFDEC_VERSION_MINOR, SWFDEC_VERSION_MICRO)
The version of Swfdec available at compile-time, encoded using
SWFDEC_VERSION_ENCODE().
#define SWFDEC_VERSION_STRING "0.8.0"
A human-readable string literal containing the version of Swfdec available at compile-time, in the form of "X.Y.Z".
guint swfdec_version (void);
Returns the version of the Swfdec library encoded in a single
integer as per SWFDEC_VERSION_ENCODE. The encoding ensures that
later versions compare greater than earlier versions.
A run-time comparison to check that Swfdec's version is greater than or equal to version X.Y.Z could be performed as follows:
if (swfdec_version() >= CAIRO_VERSION_ENCODE(X,Y,Z)) {...}
See also swfdec_version_string() as well as the compile-time
equivalents SWFDEC_VERSION and SWFDEC_VERSION_STRING.
Returns : |
the encoded version. |
const char* swfdec_version_string (void);
Returns the version of the Swfdec library as a human-readable string of the form "X.Y.Z".
See also swfdec_version() as well as the compile-time equivalents
SWFDEC_VERSION_STRING and SWFDEC_VERSION.
Returns : |
a string containing the version. |