Richard Guenther 9c01326d9a re PR libstdc++/38720 (_Relative_pointer_impl invokes undefined behavior)
2009-01-04  Richard Guenther  <rguenther@suse.de>

	PR libstdc++/38720
	* include/ext/pointer.h (_Relative_pointer_impl): Use an unsigned
	integer type for storage, arithmetic and comparisons.
	* testsuite/ext/ext_pointer/1_neg.cc: Adjust line numbers.

From-SVN: r143058
2009-01-04 19:51:18 +00:00
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