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-rw-r--r--gc/include/new_gc_alloc.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/gc/include/new_gc_alloc.h b/gc/include/new_gc_alloc.h
index 5771388..1187f0b 100644
--- a/gc/include/new_gc_alloc.h
+++ b/gc/include/new_gc_alloc.h
@@ -20,9 +20,9 @@
// It also doesn't yet understand the new header file names or
// namespaces.
//
-// This assumes the collector has been compiled with -DATOMIC_UNCOLLECTABLE
-// and -DALL_INTERIOR_POINTERS. We also recommend
-// -DREDIRECT_MALLOC=GC_uncollectable_malloc.
+// This assumes the collector has been compiled with -DATOMIC_UNCOLLECTABLE.
+// The user should also consider -DREDIRECT_MALLOC=GC_uncollectable_malloc,
+// to ensure that object allocated through malloc are traced.
//
// Some of this could be faster in the explicit deallocation case.
// In particular, we spend too much time clearing objects on the
@@ -43,11 +43,14 @@
// problems. The argument for changing it is that the usual default
// allocator is usually a very bad choice for a garbage collected environment.)
//
+// This code assumes that the collector itself has been compiled with a
+// compiler that defines __STDC__ .
+//
#ifndef GC_ALLOC_H
#include "gc.h"
-#include <alloc.h>
+#include <stack> // A more portable way to get stl_alloc.h .
#define GC_ALLOC_H
@@ -318,12 +321,10 @@ class traceable_alloc_template {
typedef traceable_alloc_template < 0 > traceable_alloc;
-#ifdef _SGI_SOURCE
-
// We want to specialize simple_alloc so that it does the right thing
// for all pointerfree types. At the moment there is no portable way to
// even approximate that. The following approximation should work for
-// SGI compilers, and perhaps some others.
+// SGI compilers, and recent versions of g++.
# define __GC_SPECIALIZE(T,alloc) \
class simple_alloc<T, alloc> { \
@@ -339,6 +340,8 @@ public: \
{ alloc::ptr_free_deallocate(p, sizeof (T)); } \
};
+__STL_BEGIN_NAMESPACE
+
__GC_SPECIALIZE(char, gc_alloc)
__GC_SPECIALIZE(int, gc_alloc)
__GC_SPECIALIZE(unsigned, gc_alloc)
@@ -363,6 +366,8 @@ __GC_SPECIALIZE(unsigned, single_client_traceable_alloc)
__GC_SPECIALIZE(float, single_client_traceable_alloc)
__GC_SPECIALIZE(double, single_client_traceable_alloc)
+__STL_END_NAMESPACE
+
#ifdef __STL_USE_STD_ALLOCATORS
__STL_BEGIN_NAMESPACE
@@ -451,6 +456,4 @@ __STL_END_NAMESPACE
#endif /* __STL_USE_STD_ALLOCATORS */
-#endif /* _SGI_SOURCE */
-
#endif /* GC_ALLOC_H */