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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// ===========================================================================
// File: umisc.h
//
// ===========================================================================
// Abstract:
//
// A collection of utility macros.
//
#ifndef UMISC_H
#define UMISC_H
#define COM_METHOD HRESULT STDMETHODCALLTYPE
inline HRESULT HrFromWin32(DWORD dwWin32Error)
{
return HRESULT_FROM_WIN32(dwWin32Error);
}
// Some helper #def's to safely Release, close & delete Objects under
// failure conditions
#define RELEASE(x) \
do \
{ \
if (x) \
{ \
IUnknown *punk = x; \
x = NULL; \
punk->Release(); \
} \
} while (0)
#include "debugmacros.h"
//
// Good for verifying params withing range.
//
#define IfFalseGo(expr, HR) IfFailGo((expr) ? S_OK : (HR))
// ----------------------------------------------------------------------------
// Validation macros
// Note that the Win32 APIs like IsBadReadPtr are banned
//
#define IsValidReadPtr(ptr, type) ((ptr)!=NULL)
#define IsValidWritePtr(ptr, type) ((ptr)!=NULL)
#define IsValidReadBufferPtr(ptr, type, len) ((ptr)!=NULL)
#define IsValidWriteBufferPtr(ptr, type, len) ((ptr)!=NULL)
#define IsValidInterfacePtr(ptr, type) ((ptr)!=NULL)
#define IsValidCodePtr(ptr) ((ptr)!=NULL)
#define IsValidStringPtr(ptr) ((ptr)!=NULL)
#define IsValidIID(iid) TRUE
#define IsValidCLSID(clsid) TRUE
#endif
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