PR 68406: Avoid problem with older host compilers

Older compilers require the Key typedef to be expanded for the traversal
function templates.  This patch uses the same approach as we did for
hash_map.

Tested on x86_64-linux-gnu.

gcc/
	PR bootstrap/68406
	* hash-set.h (hash_set::traverse): Expand Key typedef.

From-SVN: r230549

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e3c11fe0372fb060bdd82db7efe885e25bc23842..620a3105c1ccccbcd221ea658bbe04e213a9c8ae 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-11-18  Richard Sandiford  <richard.sandiford@arm.com>
+
+       PR bootstrap/68406
+       * hash-set.h (hash_set::traverse): Expand Key typedef.
+
 2015-11-18  Martin Liska  <mliska@suse.cz>
 
        * config/arm/arm.c (arm_valid_target_attribute_p): Finalize

diff --git a/gcc/hash-set.h b/gcc/hash-set.h
index 679d2b6df64562ab1da6c502679844095c92372f..8a7c9a00c1783367f9511f596d948f8eea563d5a 100644 (file)
--- a/gcc/hash-set.h
+++ b/gcc/hash-set.h
@@ -68,7 +68,7 @@ public:
   /* Call the call back on each pair of key and value with the passed in
      arg.  */
 
-  template<typename Arg, bool (*f)(const Key &, Arg)>
+  template<typename Arg, bool (*f)(const typename Traits::value_type &, Arg)>
   void traverse (Arg a) const
     {
       for (typename hash_table<Traits>::iterator iter = m_table.begin ();