mlib_check_version ()

mconstchars         mlib_check_version                  (muint required_major,
                                                         muint required_minor,
                                                         muint required_micro);

stability: Unstable

Checks that the MLib library in use is compatible with the given version. Generally you would pass in the constants MLIB_MAJOR_VERSION, MLIB_MINOR_VERSION, MLIB_MICRO_VERSION as the three arguments to this function; that produces a check that the library in use is compatible with the version of MLib the application or module was compiled against.

Compatibility is defined by two things: first the version of the running library is newer than the version required_major.required_minor.required_micro. Second the running library must be binary compatible with the version required_major.required_minor.required_micro (same major version.)

#include <mlib.h>
#include <mlib/mprintf.h>


    int
    m_main ( argc, argv )
{
    m_main_init ( argc, argv );

    m_printf ( "\n mlib_check_version: %s ", ifelse ( mlib_check_version ( 0,0,0 ) == NULL,
                                                      "is compatible",
                                                      mlib_check_version ( 0,0,0 ) ) );

    return MCORRECT;
}

  

Since 0.0.1

mlib_major_version

extern const muint mlib_major_version;

The major version number of the MLib library. (e.g. in MLib version 1.2.5 this is 1.)

This variable is in the library, so represents the MLib library you have linked against. Contrast with the MLIB_MAJOR_VERSION macro, which represents the major version of the MLib headers you have included.

mlib_minor_version

extern const muint mlib_minor_version;

The minor version number of the MLib library. (e.g. in MLib version 1.2.5 this is 2.)

This variable is in the library, so represents the MLib library you have linked against. Contrast with the MLIB_MINOR_VERSION macro, which represents the minor version of the MLib headers you have included.

mlib_micro_version

extern const muint mlib_micro_version;

The micro version number of the MLib library. (e.g. in MLib version 1.2.5 this is 5.)

This variable is in the library, so represents the MLib library you have linked against. Contrast with the MLIB_MICRO_VERSION macro, which represents the micro version of the MLib headers you have included.

mlib_interface_age

extern const muint mlib_interface_age;

This is the interface age passed to libtool. If libtool means nothing to you, don't worry about it. ;-)

mlib_binary_age

extern const muint mlib_binary_age;

This is the binary age passed to libtool. If libtool means nothing to you, don't worry about it. ;-)

MLIB_CHECK_VERSION()

#define             MLIB_CHECK_VERSION(major,minor,micro)

stability: Unstable

Checks the version of the MLib library.

    if (!MLIB_CHECK_VERSION (1, 2, 0))
    m_error ("MLib version 1.2.0 or above is needed");