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Detect broken re_search in e.g. glibc-2.2.93.

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Jim Meyering 2003-01-29 20:20:36 +00:00
parent 1c5a98512f
commit a3d30ef951
1 changed files with 11 additions and 1 deletions
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12
m4/regex.m4
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@ -1,4 +1,4 @@
#serial 13
#serial 14
dnl Initially derived from code in GNU grep.
dnl Mostly written by Jim Meyering.
@ -55,6 +55,16 @@ AC_DEFUN([jm_INCLUDED_REGEX],
if (re_match (&regex, "an", 2, 0, &regs) != 2)
exit (1);
memset (&regex, 0, sizeof (regex));
s = re_compile_pattern ("x", 1, &regex);
if (s)
exit (1);
/* The version of regex.c in e.g. GNU libc-2.2.93 didn't
work with a negative `range' argument. */
if (re_search (&regex, "wxy", 3, 2, -2, &regs) != 1)
exit (1);
exit (0);
}
],