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authorsra@chromium.org <sra@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-08 23:00:29 +0000
committersra@chromium.org <sra@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-08 23:00:29 +0000
commit04ca1bc65afb76ea30698c25f24599d20119e3d2 (patch)
tree2bb65e974d478f4d607b83f6a84a56c01f501ac0 /courgette/region.h
parent9adf1dcf3281408560267787eddcc767566b425f (diff)
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Move Courgette
from src\third_party\courgette to src\courgette and src\courgette\third_party Fixed #includes Added properties to ignore generated files: C:\c5\src>svn pg svn:ignore courgette courgette.xcodeproj courgette.sln courgette_fuzz.vcproj courgette_lib.vcproj courgette_minimal_tool.vcproj courgette_tool.vcproj courgette.vcproj courgette_unittests.vcproj SConstruct courgette_fuzz.scons courgette_lib.scons courgette_main.scons courgette_minimal_tool.scons courgette.scons courgette_tool.scons courgette_unittests.scons Review URL: http://codereview.chromium.org/115062 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15692 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'courgette/region.h')
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diff --git a/courgette/region.h b/courgette/region.h
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+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COURGETTE_REGION_H_
+#define COURGETTE_REGION_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace courgette {
+
+// A Region is a descriptor for a region of memory. It has a start address and
+// a length measured in bytes. The Region object does not own the memory.
+//
+class Region {
+ public:
+ // Default constructor: and empty region.
+ Region() : start_(NULL), length_(0) {}
+
+ // Usual constructor for regions given a |start| address and |length|.
+ Region(const void* start, size_t length)
+ : start_(static_cast<const uint8*>(start)),
+ length_(length) {
+ }
+
+ // String constructor. Region is owned by the string, so the string should
+ // have a lifetime greater than the region.
+ explicit Region(const std::string& string)
+ : start_(reinterpret_cast<const uint8*>(string.c_str())),
+ length_(string.length()) {
+ }
+
+ // Copy constructor.
+ Region(const Region& other) : start_(other.start_), length_(other.length_) {}
+
+ // Assignment 'operator' makes |this| region the same as |other|.
+ Region& assign(const Region& other) {
+ this->start_ = other.start_;
+ this->length_ = other.length_;
+ return *this;
+ }
+
+ // Returns the starting address of the region.
+ const uint8* start() const { return start_; }
+
+ // Returns the length of the region.
+ size_t length() const { return length_; }
+
+ // Returns the address after the last byte of the region.
+ const uint8* end() const { return start_ + length_; }
+
+ private:
+ const uint8* start_;
+ size_t length_;
+
+ void operator=(const Region&); // Disallow assignment operator.
+};
+
+} // namespace
+#endif // COURGETTE_REGION_H_