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Description: 
 This function takes a pointer to a region of memory and
tests if the memory has previously been dynamically allocated using other
functions from this module. It does this by checking for the presence of a "
magic" number in the header which precedes the allocated memory. If the magic
number is not present (or the pointer is invalid for any other reason), zero is
returned. Otherwise 1 is returned.  
 Synopsis 
 int astIsDynamic( const void
ptr )
 Parameters: 
 Returned Value 
  astIsDynamic()  
 Non-zero if
the memory was allocated dynamically. Zero is returned if the supplied pointer is NULL.
    Notes: 
 Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
- AST
 A Library for Handling
 World
Coordinate Systems
 in Astronomy
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