Avoid subscripting empty string.

From-SVN: r68739

Avoid subscripting empty string.
From-SVN: r68739
5892c641 · Doug Gregor · Doug Gregor · 7685a26d · 5892c641 · 5892c641
Commit 5892c641 authored Jun 30, 2003 by Doug Gregor Committed by Doug Gregor Jun 30, 2003
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libstdc++-v3/ChangeLog
+5 -0

libstdc++-v3/include/bits/locale_facets.tcc
+1 -1

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--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
+2003-06-30  Doug Gregor <dgregor@apple.com>
+	
+	* include/bits/locale_facets.tcc (money_get::do_get): Avoid
+        subscripting empty string. 
+
 2003-06-30  Phil Edwards  <pme@gcc.gnu.org>

 	* testsuite/Makefile.am (check-am):  Do not override.

--- a/libstdc++-v3/include/bits/locale_facets.tcc
+++ b/libstdc++-v3/include/bits/locale_facets.tcc
@@ -1272,7 +1272,7 @@ namespace std
 	}

      // Strip leading zeros.
-      while (__tmp_units[0] == __ctype.widen('0'))
+      while (!__tmp_units.empty() && __tmp_units[0] == __ctype.widen('0'))
 	__tmp_units.erase(__tmp_units.begin());

      if (__sign.size() && __sign == __neg_sign)