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HASH assignment [message #90080] Fri, 23 January 2015 10:35
JDS is currently offline  JDS
Messages: 94
Registered: March 2009
Member
One inconvenience of IDL hashes is that nested hash keys do not auto-instantiate. You must test for the presence of a key, and then create a sub-hash if not found. Other languages let you just say the equivalent of:

a=hash()
a['b','c','d']=1

and have all the nested hashes (here: a['b'] & a['b','c']) created automatically. While working around this (i.e. defining nested hashes myself and referencing them), I found a segfault but in IDL 8.4:

IDL> a=hash() & c=(a['b']=hash())

JD

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