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-rw-r--r--stdlib/strtol_l.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/stdlib/strtol_l.c b/stdlib/strtol_l.c
index 3424c3feab..548b46aa52 100644
--- a/stdlib/strtol_l.c
+++ b/stdlib/strtol_l.c
@@ -526,11 +526,15 @@ INTERNAL (__strtol_l) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
 noconv:
   /* We must handle a special case here: the base is 0 or 16 and the
      first two characters are '0' and 'x', but the rest are no
-     hexadecimal digits.  This is no error case.  We return 0 and
-     ENDPTR points to the `x`.  */
+     hexadecimal digits.  Likewise when the base is 0 or 2 and the
+     first two characters are '0' and 'b', but the rest are no binary
+     digits.  This is no error case.  We return 0 and ENDPTR points to
+     the 'x' or 'b'.  */
   if (endptr != NULL)
     {
-      if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')
+      if (save - nptr >= 2
+	  && (TOUPPER (save[-1]) == L_('X')
+	      || (bin_cst && TOUPPER (save[-1]) == L_('B')))
 	  && save[-2] == L_('0'))
 	*endptr = (STRING_TYPE *) &save[-1];
       else