61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
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//
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// vcclr.h - helper code for using the managed extensions to C++
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//
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// Copyright (C) Microsoft Corporation
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// All rights reserved.
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//
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#if !defined(_INC_VCCLR)
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#define _INC_VCCLR
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#include <gcroot.h>
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#pragma warning(push)
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#pragma warning(disable:4400)
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#ifdef __cplusplus_cli
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typedef cli::interior_ptr<const System::Char> __const_Char_ptr;
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typedef cli::interior_ptr<const System::Byte> __const_Byte_ptr;
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typedef cli::interior_ptr<System::Byte> _Byte_ptr;
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typedef const System::String^ __const_String_handle;
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#define _NULLPTR nullptr
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#else
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typedef const System::Char* __const_Char_ptr;
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typedef const System::Byte* __const_Byte_ptr;
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typedef System::Byte* _Byte_ptr;
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typedef const System::String* __const_String_handle;
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#define _NULLPTR 0
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#endif
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//
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// get an interior gc pointer to the first character contained in a System::String object
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//
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inline
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__const_Char_ptr
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#ifdef __cplusplus_cli
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__clrcall
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#endif
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PtrToStringChars(
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__const_String_handle s
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)
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{
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_Byte_ptr bp = const_cast<_Byte_ptr>(reinterpret_cast<__const_Byte_ptr>(s));
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if( bp != _NULLPTR ) {
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unsigned offset = System::Runtime::CompilerServices::RuntimeHelpers::OffsetToStringData;
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bp += offset;
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}
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return reinterpret_cast<__const_Char_ptr>(bp);
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}
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#pragma warning(pop)
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#undef _NULLPTR
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#endif //_INC_VCCLR
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