mirror of
https://github.com/encounter/bdwgc.git
synced 2026-03-30 10:57:55 -07:00
Ivan Maidanski
466976e79a
(code refactoring) * gc_cpp.cc (GC_DONT_INCL_WINDOWS_H): Define macro before include gc.h. * tests/test_cpp.cc (GC_DONT_INCL_WINDOWS_H): Likewise. * include/gc.h [GC_WIN32_THREADS && (!GC_PTHREADS || GC_BUILD || GC_WINDOWS_H_INCLUDED) && (!GC_NO_THREAD_DECLS || GC_BUILD)]: If GC_DONT_INCL_WINDOWS_H then do not include process.h, windows.h, and do not declare GC_CreateThread, GC_ExitThread, GC_DllMain, GC_beginthreadex, GC_endthreadex.
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/*
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* Copyright (c) 1994 by Xerox Corporation. All rights reserved.
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*
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* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
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* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
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*
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* Permission is hereby granted to copy this code for any purpose,
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* provided the above notices are retained on all copies.
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*/
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/*************************************************************************
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This implementation module for gc_c++.h provides an implementation of
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the global operators "new" and "delete" that calls the Boehm
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allocator. All objects allocated by this implementation will be
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uncollectible but part of the root set of the collector.
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You should ensure (using implementation-dependent techniques) that the
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linker finds this module before the library that defines the default
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built-in "new" and "delete".
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**************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifndef GC_BUILD
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# define GC_BUILD
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#endif
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#define GC_DONT_INCL_WINDOWS_H
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#include "gc.h"
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#include <new> // for bad_alloc, precedes include of gc_cpp.h
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#include "gc_cpp.h" // for GC_OPERATOR_NEW_ARRAY, GC_NOEXCEPT
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#if defined(GC_NEW_ABORTS_ON_OOM) || defined(_LIBCPP_NO_EXCEPTIONS)
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# define GC_ALLOCATOR_THROW_OR_ABORT() GC_abort_on_oom()
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#else
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# define GC_ALLOCATOR_THROW_OR_ABORT() throw std::bad_alloc()
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#endif
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GC_API void GC_CALL GC_throw_bad_alloc() {
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GC_ALLOCATOR_THROW_OR_ABORT();
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}
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#if !defined(_MSC_VER) && !defined(__DMC__)
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# if !defined(GC_NEW_DELETE_THROW_NOT_NEEDED) \
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&& !defined(GC_NEW_DELETE_NEED_THROW) && GC_GNUC_PREREQ(4, 2) \
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&& (__cplusplus < 201103L || defined(__clang__))
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# define GC_NEW_DELETE_NEED_THROW
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# endif
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# ifdef GC_NEW_DELETE_NEED_THROW
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# define GC_DECL_NEW_THROW throw(std::bad_alloc)
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# else
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# define GC_DECL_NEW_THROW /* empty */
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# endif
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void* operator new(size_t size) GC_DECL_NEW_THROW {
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void* obj = GC_MALLOC_UNCOLLECTABLE(size);
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if (0 == obj)
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GC_ALLOCATOR_THROW_OR_ABORT();
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return obj;
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}
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void operator delete(void* obj) GC_NOEXCEPT {
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GC_FREE(obj);
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}
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# if defined(GC_OPERATOR_NEW_ARRAY) && !defined(CPPCHECK)
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void* operator new[](size_t size) GC_DECL_NEW_THROW {
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void* obj = GC_MALLOC_UNCOLLECTABLE(size);
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if (0 == obj)
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GC_ALLOCATOR_THROW_OR_ABORT();
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return obj;
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}
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void operator delete[](void* obj) GC_NOEXCEPT {
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GC_FREE(obj);
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}
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# endif // GC_OPERATOR_NEW_ARRAY
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# if __cplusplus > 201103L // C++14
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void operator delete(void* obj, size_t size) GC_NOEXCEPT {
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(void)size; // size is ignored
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GC_FREE(obj);
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}
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# if defined(GC_OPERATOR_NEW_ARRAY) && !defined(CPPCHECK)
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void operator delete[](void* obj, size_t size) GC_NOEXCEPT {
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(void)size;
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GC_FREE(obj);
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}
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# endif
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# endif // C++14
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#endif // !_MSC_VER
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