This bugreport is rather useless:
1.) The contents of /tmp/p is missing. (It can't be the empty file.)
2.) The sample [1] below from the bug report only proves that gawk works
correctly.
When interpreting hexadecimal constants in the source code, these
constants
must be prefixed by 0x.
Hexadecimal strings can be translated to internal numbers with
strtonum(str)
and there is also the gawk-option --non-decimal-data to translate
hexadecimal text in the input, which must be handled with great caution
according to the man-page.
3.) The word A in the source code can't be a hexadecimal constant, because
of the missing prefix 0x. It is simply a variable.
4.) The numbers in /tmp/p1 are surely decimal numbers.
5.) gawk works correctly on this piped input.
--
Steffen
-----
[1] sample:
$cat /tmp/p1
111
112
222
$cat /tmp/p1 | gawk '{printf "rr " $1-A "\n";A=$1 }'
rr 111
rr 1
rr 110
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