Security-57031.1.35.tar.gz

[apple/security.git] / libsecurity_utilities / lib / memutils.h

diff --git a/libsecurity_utilities/lib/memutils.h b/libsecurity_utilities/lib/memutils.h
deleted file mode 100644 (file)
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--- a/libsecurity_utilities/lib/memutils.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All Rights Reserved.
- * 
- * @APPLE_LICENSE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-
-
-//
-// memutils - memory-related low-level utilities for easier living
-//
-#ifndef _H_MEMUTILS
-#define _H_MEMUTILS
-
-#include <security_utilities/utilities.h>
-#include <sys/types.h>
-#include <stdlib.h>
-#include <algorithm>
-
-
-//
-// Encapsulate these very sharp tools in a separate (ugly-named) namespace
-//
-namespace Security {
-namespace LowLevelMemoryUtilities {
-
-
-//
-// The default system alignment.
-//
-static const size_t systemAlignment = 4;
-
-
-//
-// Get the local alignment for a type, as used by the acting compiler.
-//
-template <class T>
-inline size_t alignof() { struct { char c; T t; } s; return sizeof(s) - sizeof(T); }
-
-
-//
-// Get the local offset of a field in a (struct or class) type, as layed out
-// by the acting compiler.
-// NB: "offsetof" is a standard-defined macro. Don't use that.
-//
-template <class Type, class Field>
-inline size_t fieldOffsetOf(Field (Type::*field))
-{
-       Type *object = 0;       // we don't REALLY need this, but it's easier to read
-       return uintptr_t(&(object->*field)) - uintptr_t(object);
-}
-
-
-//
-// Round up a size or pointer to an alignment boundary.
-// Alignment must be a power of two; default is default alignment.
-//
-inline size_t alignUp(size_t size, size_t alignment = systemAlignment)
-{
-       return ((size - 1) & ~(alignment - 1)) + alignment;
-}
-
-inline void *alignUp(void *p, size_t alignment = systemAlignment)
-{
-       return reinterpret_cast<void *>(alignUp(uintptr_t(p), alignment));
-}
-
-inline const void *alignUp(const void *p, size_t alignment = systemAlignment)
-{
-       return reinterpret_cast<const void *>(alignUp(uintptr_t(p), alignment));
-}
-
-template <class T>
-inline const T *increment(const void *p, ptrdiff_t offset)
-{ return reinterpret_cast<const T *>(uintptr_t(p) + offset); }
-
-template <class T>
-inline T *increment(void *p, ptrdiff_t offset)
-{ return reinterpret_cast<T *>(uintptr_t(p) + offset); }
-
-inline const void *increment(const void *p, ptrdiff_t offset)
-{ return increment<const void>(p, offset); }
-
-inline void *increment(void *p, ptrdiff_t offset)
-{ return increment<void>(p, offset); }
-
-template <class T>
-inline const T *increment(const void *p, ptrdiff_t offset, size_t alignment)
-{ return increment<const T>(alignUp(p, alignment), offset); }
-
-template <class T>
-inline T *increment(void *p, ptrdiff_t offset, size_t alignment)
-{ return increment<T>(alignUp(p, alignment), offset); }
-
-inline const void *increment(const void *p, ptrdiff_t offset, size_t alignment)
-{ return increment<const void>(p, offset, alignment); }
-
-inline void *increment(void *p, ptrdiff_t offset, size_t alignment)
-{ return increment<void>(p, offset, alignment); }
-
-inline ptrdiff_t difference(const void *p1, const void *p2)
-{ return uintptr_t(p1) - uintptr_t(p2); }
-
-
-} // end namespace LowLevelMemoryUtilities
-} // end namespace Security
-
-#endif //_H_MEMUTILS