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ce892ca9bc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166517 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===--- StringSet.h - The LLVM Compiler Driver -----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open
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// Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// StringSet - A set-like wrapper for the StringMap.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ADT_STRINGSET_H
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#define LLVM_ADT_STRINGSET_H
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#include "llvm/ADT/StringMap.h"
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namespace llvm {
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/// StringSet - A wrapper for StringMap that provides set-like
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/// functionality. Only insert() and count() methods are used by my
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/// code.
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template <class AllocatorTy = llvm::MallocAllocator>
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class StringSet : public llvm::StringMap<char, AllocatorTy> {
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typedef llvm::StringMap<char, AllocatorTy> base;
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public:
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bool insert(StringRef InLang) {
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assert(!InLang.empty());
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const char *KeyStart = InLang.data();
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const char *KeyEnd = KeyStart + InLang.size();
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llvm::StringMapEntry<char> *Entry = llvm::StringMapEntry<char>::
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Create(KeyStart, KeyEnd, base::getAllocator(), '+');
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if (!base::insert(Entry)) {
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Entry->Destroy(base::getAllocator());
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return false;
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}
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return true;
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}
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};
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}
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#endif // LLVM_ADT_STRINGSET_H
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