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 A Library for Handling
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Description: 
This macro invokes a function which returns an integer representing the version of
the AST library being used. The library version is formatted as a string such
as 
" 2.0-7
" which contains integers representing the 
" major version
" (2),
the 
" minor version
" (0) and the 
" release
" (7). The integer returned by this
function combines all three integers together into a single integer using the
expresion:
(major version)1E6
 (minor
version)1E3
(release)  
Synopsis 
 int astVersion  
 Applicability 
  This macro applies
to all Objects.  
    Returned Value 
  astVersion  
 The major version, minor
version and release numbers for the AST library, encoded as a single integer.  
  Copyright (C) 2021 East Asian Observatory
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 A Library for Handling
 World
Coordinate Systems
 in Astronomy
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