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# From: Eiso AB <E.Ab@chem.rug.nl>
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# To: bug-gnu-utils@gnu.org, arnold@gnu.org
# Subject: bug? [GNU Awk 3.0.5]
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# Status: R
# 
# hi Arnold,
# 
# 
# Please try the script beneath...
# I'm not sure if this is a bug or not, but I would expect 
# the empty string as an array index just to be treated 
# like any other string
# 
# so if ("" in ta) would be true, and for ( i in ta ) should loop only once.
# 
BEGIN {
        v=""
        ta[v]++
        if ( v in ta) print "a",v,++ta[v],ta[v]
	print "b",v,++ta[v],ta[v]
        for( i in ta) print "c",++c,i,ta[i]
} 
# 
# goodluck, Eiso
# 
# -- 
#                                 _________
# _______________________________/ Eiso AB \_________________________
# 
#            o                 
#                                               
#                  o               Dept. of Biochemistry
#                                  University of Groningen		
#                                  The Netherlands                      
#                   o  
#             . .     
#          o   ^                   mailto:eiso@chem.rug.nl
#          |   -   _               mailto:eiso@dds.nl
#           \__|__/                http://md.chem.rug.nl/~eiso
#              |	                 tel 4326
#              |
#             / \
#            /   \
#            |   |
# ________ ._|   |_. ________________________________________________
#