+2012-02-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ regex: re_search etc. should return -2 when memory exhausted
+ This bug was uncovered when testing 'grep'. Without the fix,
+ re_search and friends return -1 when memory is exhausted, but -1
+ means no match, and this causes grep to falsely report no-match
+ instead of memory-exhaustion. See
+ <http://sources.redhat.com/bugzilla/show_bug.cgi?id=13762>.
+ * lib/regexec.c (re_search_stub): Return -2 (not -1) if there is
+ trouble; this can occur if re_search_internal ran out of memory.
+
2012-02-26 Bruno Haible <bruno@clisp.org>
modfl-ieee: Work around test failures on IRIX, OSF/1, mingw.
/* I hope we needn't fill ther regs with -1's when no match was found. */
if (result != REG_NOERROR)
- rval = -1;
+ rval = result == REG_NOMATCH ? -1 : -2;
else if (regs != NULL)
{
/* If caller wants register contents data back, copy them. */