xref: /illumos-gate/usr/src/test/util-tests/tests/awk/gnu/rstest4.awk (revision b666b5bebdde1067e2d0f2b91fd28a5243311a1a)
1# From spcecdt@armory.com  Mon May  5 14:37:09 2003
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22# Date: Mon, 5 May 2003 02:20:08 -0700
23# From: "John H. DuBois III" <spcecdt@armory.com>
24# To: Aharon Robbins <arnold@skeeve.com>
25# Subject: Re: gawk 3.1.2b now available
26# Message-ID: <20030505092008.GA15970@armory.com>
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37# Status: RO
38#
39# This is a curious one:
40#
41# gawk-3.1.2b 'BEGIN {
42#     while (("echo" | getline) == 1)
43# 	;
44#     RS = ""
45#     "echo \"a\n\nb\"" | getline y
46#     print x
47# }' | hd
48#
49# The output is:
50#
51# 0000    00 13 0a                                           ...
52# 0003
53#
54# (the uninitialized variable 'x' is somehow getting the value <null><control-S>)
55#
56# 	John
57# --
58# John DuBois  spcecdt@armory.com  KC6QKZ/AE  http://www.armory.com/~spcecdt/
59#
60BEGIN {
61    while (("echo" | getline) == 1)
62	;
63    RS = ""
64    "echo \"a\n\nb\"" | getline y
65    printf "y = <%s>\n", y	# ADR
66    printf "x = <%s>\n", x	# ADR
67}
68