NAME

       IXP_API, IXP_NEEDAPI, IXP_MAXAPI, IXP_ASSERT_VERSION

SYNOPSIS

       #include <ixp.h>

       #define IXP_API ...

       #define IXP_NEEDAPI ...

       #define IXP_MAXAPI ...

       #define IXP_ASSERT_VERSION ...

DESCRIPTION

       IXP_API contains the current libixp API revision number.

       IXP_NEEDAPI,  if  defined before ixp.h is included, directs the header to present an older
       version of the libixp API. This allows code  written  for  older  versions  of  libixp  to
       compile  against newer versions without modification. It does not, however, ensure that it
       will link against a different version of libixp than the ixp.h header belongs to.

       IXP_MAXAPI, if defined before ixp.h is included, prevents code from compiling with a newer
       version of libixp than specified.

       When inserted into any function, IXP_ASSERT_VERSION ensures that the resulting object will
       fail to link link against any version of libixp with a different API version than  it  was
       compiled against.