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Description:
This function returns the minimum length that a character variable must
have in order to be able to store a specified entry in the supplied
KeyMap. If the
named entry is a vector entry, then the returned value is the length of the
longest element of the vector value.
Synopsis
int astMapLenC( AstKeyMap
this, const
char key )
Parameters:
this
Pointer to the KeyMap.
key
The character string identifying
the KeyMap entry. Trailing spaces are ignored. The supplied string is converted to
upper case before use if the
KeyCase attribute is currently set to zero.
Returned
Value
astMapLenC()
The length (i.e. number of characters) of the longest formatted
value associated with the named entry. This does not include the trailing null
character.
Notes:
-
A function value of zero will be returned without error if the named entry cannot be
formatted as a character string.
-
A function value of zero will be returned if an error has already occurred, or if this
function should fail for any reason.
Copyright (C) 2021 East Asian Observatory
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A Library for Handling
World
Coordinate Systems
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