Fix nasty crash that only happens when using cygwin.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-11 14:23:36 -07:00 · 2013-08-11 14:23:36 -07:00 · e07830d0f5
commit e07830d0f5
parent 4eeb72b0ee
1 changed files with 2 additions and 1 deletions
--- a/src/util/rc.h
+++ b/src/util/rc.h
@ -34,9 +34,10 @@ void dec_ref() { if (dec_ref_core()) dealloc(); }
 #define LEAN_COPY_REF(T, Arg)                   \
    if (Arg.m_ptr)                              \
        Arg.m_ptr->inc_ref();                   \
+    auto new_ptr = Arg.m_ptr;                   \
    if (m_ptr)                                  \
        m_ptr->dec_ref();                       \
-    m_ptr = Arg.m_ptr;                          \
+    m_ptr = new_ptr;				\
    return *this;

 #define LEAN_MOVE_REF(T, Arg)                   \