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Hans Boehm
89 lines
2.6 KiB
C++
89 lines
2.6 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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#include "gc_cpp.h"
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#if !defined(GC_NEW_DELETE_NEED_THROW) && defined(__GNUC__) \
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&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
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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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# include <new> /* for std::bad_alloc */
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# define GC_DECL_NEW_THROW throw(std::bad_alloc)
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# define GC_DECL_DELETE_THROW throw()
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#else
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# define GC_DECL_NEW_THROW /* empty */
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# define GC_DECL_DELETE_THROW /* empty */
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#endif /* !GC_NEW_DELETE_NEED_THROW */
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void* operator new( size_t size ) GC_DECL_NEW_THROW {
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return GC_MALLOC_UNCOLLECTABLE(size);
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}
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#if !defined(__CYGWIN__)
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void operator delete( void* obj ) GC_DECL_DELETE_THROW {
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GC_FREE(obj);
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}
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#endif /* !__CYGWIN__ */
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#ifdef GC_OPERATOR_NEW_ARRAY
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void* operator new[]( size_t size ) GC_DECL_NEW_THROW {
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return GC_MALLOC_UNCOLLECTABLE(size);
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}
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void operator delete[]( void* obj ) GC_DECL_DELETE_THROW {
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GC_FREE(obj);
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}
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#endif /* GC_OPERATOR_NEW_ARRAY */
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#ifdef _MSC_VER
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// This new operator is used by VC++ in case of Debug builds!
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void* operator new( size_t size, int /* nBlockUse */,
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const char * szFileName, int nLine ) GC_DECL_NEW_THROW
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{
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# ifndef GC_DEBUG
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return GC_malloc_uncollectable(size);
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# else
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return GC_debug_malloc_uncollectable(size, szFileName, nLine);
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# endif
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}
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# if _MSC_VER > 1020
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// This new operator is used by VC++ 7.0 and later in Debug builds.
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void* operator new[]( size_t size, int nBlockUse,
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const char* szFileName, int nLine ) GC_DECL_NEW_THROW
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{
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return operator new(size, nBlockUse, szFileName, nLine);
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}
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# endif
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#endif /* _MSC_VER */
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