freebsd-dev/bin/sh/tests/expansion/arith11.0
Julio Merino 13de33a5dc Migrate tools/regression/bin/ tests to the new layout.
This change is a proof of concept on how to easily integrate existing
tests from the tools/regression/ hierarchy into the /usr/tests/ test
suite and on how to adapt them to the new layout for src.

To achieve these goals, this change:

- Moves tests from tools/regression/bin/<tool>/ to bin/<tool>/tests/.
- Renames the previous regress.sh files to legacy_test.sh.
- Adds Makefiles to build and install the tests and all their supporting
  data files into /usr/tests/bin/.
- Plugs the legacy_test test programs into the test suite using the new
  TAP backend for Kyua (appearing in 0.8) so that the code of the test
  programs does not have to change.
- Registers the new directories in the BSD.test.dist mtree file.

Reviewed by:	freebsd-testing
Approved by:	rpaulo (mentor)
2013-12-11 04:09:17 +00:00

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# $FreeBSD$
# Try to divide the smallest integer by -1.
# On amd64 this causes SIGFPE, so make sure the shell checks.
# Calculate the minimum possible value, assuming two's complement and
# a certain interpretation of overflow when shifting left.
minint=1
while [ $((minint <<= 1)) -gt 0 ]; do
:
done
v=$( eval ': $((minint / -1))' 2>&1 >/dev/null)
[ $? -ne 0 ] && [ -n "$v" ]