1 //===--- StringSet.h - The LLVM Compiler Driver -----------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open 6 // Source License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // StringSet - A set-like wrapper for the StringMap. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_ADT_STRINGSET_H 15 #define LLVM_ADT_STRINGSET_H 16 17 #include "llvm/ADT/StringMap.h" 18 19 namespace llvm { 20 21 /// StringSet - A wrapper for StringMap that provides set-like functionality. 22 template <class AllocatorTy = llvm::MallocAllocator> 23 class StringSet : public llvm::StringMap<char, AllocatorTy> { 24 typedef llvm::StringMap<char, AllocatorTy> base; 25 public: 26 StringSet() = default; StringSet(std::initializer_list<StringRef> S)27 StringSet(std::initializer_list<StringRef> S) { 28 for (StringRef X : S) 29 insert(X); 30 } 31 insert(StringRef Key)32 std::pair<typename base::iterator, bool> insert(StringRef Key) { 33 assert(!Key.empty()); 34 return base::insert(std::make_pair(Key, '\0')); 35 } 36 37 template <typename InputIt> insert(const InputIt & Begin,const InputIt & End)38 void insert(const InputIt &Begin, const InputIt &End) { 39 for (auto It = Begin; It != End; ++It) 40 base::insert(std::make_pair(*It, '\0')); 41 } 42 }; 43 } 44 45 #endif // LLVM_ADT_STRINGSET_H 46