diff options
Diffstat (limited to 'libcult/examples/mm/shptr')
-rw-r--r-- | libcult/examples/mm/shptr/makefile | 48 | ||||
-rw-r--r-- | libcult/examples/mm/shptr/shptr.cxx | 73 |
2 files changed, 121 insertions, 0 deletions
diff --git a/libcult/examples/mm/shptr/makefile b/libcult/examples/mm/shptr/makefile new file mode 100644 index 0000000..2bf1598 --- /dev/null +++ b/libcult/examples/mm/shptr/makefile @@ -0,0 +1,48 @@ +# file : examples/mm/shptr/makefile +# author : Boris Kolpackov <boris@kolpackov.net> +# copyright : Copyright (c) 2005-2010 Boris Kolpackov +# license : GNU GPL v2; see accompanying LICENSE file + +include $(dir $(lastword $(MAKEFILE_LIST)))../../../build/bootstrap.make + +cxx_tun := shptr.cxx +cxx_obj := $(addprefix $(out_base)/,$(cxx_tun:.cxx=.o)) +cxx_od := $(cxx_obj:.o=.o.d) + +cult.l := $(out_root)/cult/cult.l +cult.l.cpp-options := $(out_root)/cult/cult.l.cpp-options + +shptr := $(out_base)/shptr +clean := $(out_base)/.clean + + +# Build. +# +$(shptr): $(cxx_obj) $(cult.l) + +$(cxx_obj) $(cxx_od): $(cult.l.cpp-options) + +$(call include-dep,$(cxx_od)) + + +# Convenience alias for default target. +# +$(out_base)/: $(shptr) + + +# Clean. +# +$(clean): $(shptr).o.clean \ + $(addsuffix .cxx.clean,$(cxx_obj)) \ + $(addsuffix .cxx.clean,$(cxx_od)) + + +# How to. +# +$(call include,$(bld_root)/cxx/o-e.make) +$(call include,$(bld_root)/cxx/cxx-o.make) +$(call include,$(bld_root)/cxx/cxx-d.make) + +# Dependencies. +# +$(call import,$(src_root)/cult/makefile) diff --git a/libcult/examples/mm/shptr/shptr.cxx b/libcult/examples/mm/shptr/shptr.cxx new file mode 100644 index 0000000..cb026d4 --- /dev/null +++ b/libcult/examples/mm/shptr/shptr.cxx @@ -0,0 +1,73 @@ +// file : examples/mm/shptr/shptr.cxx +// author : Boris Kolpackov <boris@kolpackov.net> +// copyright : Copyright (c) 2005-2010 Boris Kolpackov +// license : GNU GPL v2 + exceptions; see accompanying LICENSE file + +#include <cult/mm/shptr.hxx> +#include <cult/mm/new.hxx> // MM::locate +#include <cult/mm/counter.hxx> // MM::inc_ref + +#include <iostream> + +using std::cerr; +using std::endl; + +using namespace Cult; +using namespace MM; + +struct Foo +{ + virtual ~Foo () {} + char c; +}; + +struct Bar: virtual Foo {char c;}; + +struct Baz: virtual Foo {char c;}; + +struct Fox: Bar, Baz {}; + + +struct A +{ + char c[8]; +}; + +struct B +{ + char c[8]; +}; + +struct C : A, B +{ + char c[8]; +}; + +int +main () +{ + { + Baz* bp (new Fox); + Foo* fp (bp); + + Counter* cp (locate (fp, *counted)); + + inc_ref (bp); + + cp->dec_ref (); + + if (cp->dec_ref ()) cerr << "good: destroying" << endl; + else cerr << "bad: leaking" << endl; + + delete bp; + } + + { + Shptr<Fox> pfox (new Fox); + Shptr<Bar> pbar (pfox); + + Shptr<Foo> pfoo; + + pfoo = pbar; + } +} |