Initializing help system before first use

# existsarrentry

Purpose
Check whether a given entry in a sparse array has been created.
Synopsis
`int existsarrentry(XPRMarray array, int indices[]);`
Arguments

array | Reference to an array
indices | n-tuple of indices where n is the number of dimensions of the array array

Return value
1 if the entry exists, 0 otherwise.
Further information
If an array is sparse its elements are not created at its declaration. This function indicates if a given element has been created.
Related topics
chkarrind.
Parent Topic Array access

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