package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch

   1 From 946b29e62927eadfc4e87f27b8d30e5974b78c4c Mon Sep 17 00:00:00 2001
   2 From: Ben Kelly <ben@benjii.net>
   3 Date: Mon, 6 Feb 2017 13:08:25 +0200
   4 Subject: [PATCH] Bugfix erase() on derived __base_associative
   5
   6 When calling erase() on a containers derived from __base_associative
   7 (e.g. multimap) and providing a pair of iterators a segfault will
   8 occur.
   9
  10 Example code to reproduce:
  11
  12         typedef std::multimap<int, int> testmap;
  13         testmap t;
  14         t.insert(std::pair<int, int>(1, 1));
  15         t.insert(std::pair<int, int>(2, 1));
  16         t.insert(std::pair<int, int>(3, 1));
  17         t.erase(t.begin(), t.end());
  18
  19 Signed-off-by: Ben Kelly <ben@benjii.net>
  20 ---
  21  include/associative_base | 3 +--
  22  1 file changed, 1 insertion(+), 2 deletions(-)
  23
  24 diff --git a/include/associative_base b/include/associative_base
  25 index 27ae0ef..be8b27f 100644
  26 --- a/include/associative_base
  27 +++ b/include/associative_base
  28 @@ -200,8 +200,7 @@ public:
  29         }
  30         void erase(iterator first, iterator last){
  31                 while(first != last){
  32 -                       backing.erase(first.base_iterator());
  33 -                       ++first;
  34 +                       first = backing.erase(first.base_iterator());
  35                 }
  36         }
  37
  38 --
  39 2.7.4
  40