70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
// Common/NewHandler.h
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#ifndef __COMMON_NEW_HANDLER_H
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#define __COMMON_NEW_HANDLER_H
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/*
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This file must be included before any code that uses operators "delete" or "new".
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Also you must compile and link "NewHandler.cpp", if you use MSVC 6.0.
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The operator "new" in MSVC 6.0 doesn't throw exception "bad_alloc".
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So we define another version of operator "new" that throws "CNewException" on failure.
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If you use compiler that throws exception in "new" operator (GCC or new version of MSVC),
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you can compile without "NewHandler.cpp". So standard exception "bad_alloc" will be used.
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It's still allowed to use redefined version of operator "new" from "NewHandler.cpp"
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with any compiler. 7-Zip's code can work with "bad_alloc" and "CNewException" exceptions.
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But if you use some additional code (outside of 7-Zip's code), you must check
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that redefined version of operator "new" (that throws CNewException) is not
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problem for your code.
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Also we declare delete(void *p) throw() that creates smaller code.
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*/
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#include <stddef.h>
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class CNewException {};
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#ifdef WIN32
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// We can compile my_new and my_delete with _fastcall
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/*
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void * my_new(size_t size);
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void my_delete(void *p) throw();
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// void * my_Realloc(void *p, size_t newSize, size_t oldSize);
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*/
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#endif
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#ifdef _WIN32
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void *
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#ifdef _MSC_VER
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__cdecl
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#endif
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operator new(size_t size);
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void
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#ifdef _MSC_VER
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__cdecl
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#endif
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operator delete(void *p) throw();
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#endif
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/*
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#ifdef _WIN32
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void *
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#ifdef _MSC_VER
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__cdecl
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#endif
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operator new[](size_t size);
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void
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#ifdef _MSC_VER
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__cdecl
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#endif
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operator delete[](void *p) throw();
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#endif
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*/
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#endif
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