* prefer HashSet and HashMap to respective std-classes where possible

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40518 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-02-15 18:52:03 +00:00
parent 07b37bb0a0
commit f5644b8d3b
3 changed files with 83 additions and 35 deletions
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2011, Oliver Tappe <[email protected]>
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _PACKAGE__PRIVATE__HASHABLE_STRING_H_
+#define _PACKAGE__PRIVATE__HASHABLE_STRING_H_
+
+
+#include <String.h>
+
+#include <HashString.h>
+
+
+namespace BPackageKit {
+
+namespace BPrivate {
+
+
+class HashableString : public BString {
+public:
+	inline						HashableString();
+
+	inline						HashableString(const BString& string);
+
+	inline	uint32				GetHashCode() const;
+
+	inline	bool				operator!= (const HashableString& other) const;
+
+private:
+			uint32				fHashCode;
+};
+
+
+inline
+HashableString::HashableString()
+	:
+	fHashCode(0)
+{
+}
+
+
+inline
+HashableString::HashableString(const BString& string)
+	:
+	BString(string),
+	fHashCode(string_hash(String()))
+{
+}
+
+
+inline uint32
+HashableString::GetHashCode() const
+{
+	return fHashCode;
+}
+
+
+inline bool
+HashableString::operator!= (const HashableString& other) const
+{
+	return Compare(other) != 0 || fHashCode != other.fHashCode;
+}
+
+
+}	// namespace BPrivate
+
+}	// namespace BPackageKit
+
+
+#endif // _PACKAGE__PRIVATE__HASHABLE_STRING_H_