diff options
| author | hboehm <hboehm> | 2007-05-11 00:30:36 +0000 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2011-07-26 21:06:39 +0400 |
| commit | 9bafc5a014fb9f8042c16af23ca807a277b7c87d (patch) | |
| tree | 2da66e6e436a956bdb9c42c2ff8a3cf46d2282b5 /include/gc_cpp.h | |
| parent | 484e219f8e08cb205a354fe84cb952b9a1b17e3d (diff) | |
| download | bdwgc-9bafc5a014fb9f8042c16af23ca807a277b7c87d.tar.gz | |
2007-05-10 Hans Boehm <Hans.Boehm@hp.com>
* include/gc_cpp.h: Documentation updates.
* include/gc_config_macros.h: Don't check for __ppc__ to set
DARWIN_THREADS.
* Makefile.am: Include configure_atomic_ops.sh in dist.
* Makefile.in: Regenerate.
Diffstat (limited to 'include/gc_cpp.h')
| -rw-r--r-- | include/gc_cpp.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/gc_cpp.h b/include/gc_cpp.h index da2fac02..d3df2112 100644 --- a/include/gc_cpp.h +++ b/include/gc_cpp.h @@ -48,6 +48,12 @@ using the NoGC placement: class A: public gc {...}; A* a = new (NoGC) A; // a is uncollectable. +The new(PointerFreeGC) syntax allows the allocation of collectable +objects that are not scanned by the collector. This useful if you +are allocating compressed data, bitmaps, or network packets. (In +the latter case, it may remove danger of unfriendly network packets +intentionally containing values that cause spurious memory retention.) + Both uncollectable and collectable objects can be explicitly deleted with "delete", which invokes an object's destructors and frees its storage immediately. @@ -80,7 +86,8 @@ objects. In practice, it finds almost all of them. Cautions: -1. Be sure the collector has been augmented with "make c++". +1. Be sure the collector has been augmented with "make c++" or +"--enable-cplusplus". 2. If your compiler supports the new "operator new[]" syntax, then add -DGC_OPERATOR_NEW_ARRAY to the Makefile. @@ -111,7 +118,7 @@ clean-up function: that preserves the correct exception semantics requires a language extension, e.g. the "gc" keyword.) -4. Compiler bugs: +4. Compiler bugs (now hopefully history): * Solaris 2's CC (SC3.0) doesn't implement t->~T() correctly, so the destructors of classes derived from gc_cleanup won't be invoked. |