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#!/bin/sh
# test a power binary
if [ "$1" = "" ]; then
echo "usage: $0 ./power.exe"
exit
fi
# all of power's output is to stdout
echo "running: $1 >output"
if ! $1 >output; then
echo "$1 failed directly"
exit 2
fi
# must strip elapsed time
# must truncate precision to only 5 decimal places, because gcc's optimizer
# (even with -ffloat-store) seems to change the answer under boxing
if ! grep -v "Elapsed time" <output | \
sed 's/\(\.[0-9]\{5\}\)[0-9]*/\1/g' | diff out.orig - >/dev/null; then
echo "$1 got the wrong answer"
exit 4
else
echo "$1 seems to work"
fi
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