STLExtras.h revision 3d4227bec59358199c7d53fad8f03fd075723fcf
15f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===- llvm/ADT/STLExtras.h - Useful STL related functions ------*- C++ -*-===// 25f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 35f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// The LLVM Compiler Infrastructure 45f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 55f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// This file is distributed under the University of Illinois Open Source 65f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// License. See LICENSE.TXT for details. 75f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 85f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 95f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 105f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// This file contains some templates that are useful if you are working with the 115f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// STL at all. 125f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 135f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// No library is required when using these functinons. 145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 155f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#ifndef LLVM_ADT_STLEXTRAS_H 185f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#define LLVM_ADT_STLEXTRAS_H 195f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include <functional> 215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include <utility> // for std::pair 225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include <cstring> // for std::size_t 235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "llvm/ADT/iterator.h" 245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 255f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)namespace llvm { 265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 285f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Extra additions to <functional> 295f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 305f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 315f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template<class Ty> 325f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)struct greater_ptr : public std::binary_function<Ty, Ty, bool> { 335f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) bool operator()(const Ty* left, const Ty* right) const { 345f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return *right < *left; 355f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 365f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)}; 375f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 385f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// deleter - Very very very simple method that is used to invoke operator 395f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// delete on something. It is used like this: 405f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 415f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// for_each(V.begin(), B.end(), deleter<Interval>); 425f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 435f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <class T> 445f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)static inline void deleter(T *Ptr) { 455f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) delete Ptr; 465f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 475f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 485f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 495f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 505f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 515f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Extra additions to <iterator> 525f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 535f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 545f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// mapped_iterator - This is a simple iterator adapter that causes a function to 555f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// be dereferenced whenever operator* is invoked on the iterator. 565f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 575f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <class RootIt, class UnaryFunc> 585f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)class mapped_iterator { 595f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RootIt current; 605f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) UnaryFunc Fn; 615f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)public: 625f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef typename std::iterator_traits<RootIt>::iterator_category 635f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) iterator_category; 645f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef typename std::iterator_traits<RootIt>::difference_type 655f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) difference_type; 665f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef typename UnaryFunc::result_type value_type; 675f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 685f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef void pointer; 695f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) //typedef typename UnaryFunc::result_type *pointer; 705f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef void reference; // Can't modify value returned by fn 715f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef RootIt iterator_type; 735f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef mapped_iterator<RootIt, UnaryFunc> _Self; 745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 755f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline const RootIt &getCurrent() const { return current; } 765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline const UnaryFunc &getFunc() const { return Fn; } 775f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 785f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline explicit mapped_iterator(const RootIt &I, UnaryFunc F) 795f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) : current(I), Fn(F) {} 805f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline mapped_iterator(const mapped_iterator &It) 815f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) : current(It.current), Fn(It.Fn) {} 825f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 835f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline value_type operator*() const { // All this work to do this 845f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return Fn(*current); // little change 855f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 875f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self& operator++() { ++current; return *this; } 885f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self& operator--() { --current; return *this; } 895f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self operator++(int) { _Self __tmp = *this; ++current; return __tmp; } 905f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self operator--(int) { _Self __tmp = *this; --current; return __tmp; } 915f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self operator+ (difference_type n) const { 925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return _Self(current + n, Fn); 935f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 945f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self& operator+= (difference_type n) { current += n; return *this; } 955f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self operator- (difference_type n) const { 965f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return _Self(current - n, Fn); 975f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 985f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) _Self& operator-= (difference_type n) { current -= n; return *this; } 991320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci reference operator[](difference_type n) const { return *(*this + n); } 1005f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1015f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline bool operator!=(const _Self &X) const { return !operator==(X); } 1025f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline bool operator==(const _Self &X) const { return current == X.current; } 1035f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline bool operator< (const _Self &X) const { return current < X.current; } 1045f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1055f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) inline difference_type operator-(const _Self &X) const { 1065f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return current - X.current; 1075f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 1085f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)}; 1095f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1105f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <class _Iterator, class Func> 1115f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline mapped_iterator<_Iterator, Func> 1121320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tuccioperator+(typename mapped_iterator<_Iterator, Func>::difference_type N, 1135f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const mapped_iterator<_Iterator, Func>& X) { 1145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return mapped_iterator<_Iterator, Func>(X.getCurrent() - N, X.getFunc()); 1155f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1181320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci// map_iterator - Provide a convenient way to create mapped_iterators, just like 1195f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// make_pair is useful for creating pairs... 1205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 1215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <class ItTy, class FuncTy> 1225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline mapped_iterator<ItTy, FuncTy> map_iterator(const ItTy &I, FuncTy F) { 1235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return mapped_iterator<ItTy, FuncTy>(I, F); 1245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1255f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// next/prior - These functions unlike std::advance do not modify the 1285f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// passed iterator but return a copy. 1295f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 1305f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// next(myIt) returns copy of myIt incremented once 1315f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// next(myIt, n) returns copy of myIt incremented n times 1325f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// prior(myIt) returns copy of myIt decremented once 1335f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// prior(myIt, n) returns copy of myIt decremented n times 1345f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1355f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <typename ItTy, typename Dist> 1365f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline ItTy next(ItTy it, Dist n) 1375f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles){ 1385f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) std::advance(it, n); 1395f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return it; 1405f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1415f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1425f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <typename ItTy> 1435f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline ItTy next(ItTy it) 1445f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles){ 1455f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return ++it; 1465f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1475f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1485f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <typename ItTy, typename Dist> 1495f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline ItTy prior(ItTy it, Dist n) 1505f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles){ 1515f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) std::advance(it, -n); 1525f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return it; 1535f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1545f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1555f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <typename ItTy> 1565f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline ItTy prior(ItTy it) 1575f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles){ 1585f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return --it; 1595f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 1605f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1615f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 1625f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Extra additions to <utility> 1635f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 1645f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1655f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// tie - this function ties two objects and returns a temporary object 1665f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// that is assignable from a std::pair. This can be used to make code 1675f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// more readable when using values returned from functions bundled in 1685f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// a std::pair. Since an example is worth 1000 words: 1691320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci// 1705f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// typedef std::map<int, int> Int2IntMap; 1715f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 1725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Int2IntMap myMap; 1735f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Int2IntMap::iterator where; 1745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// bool inserted; 1755f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// tie(where, inserted) = myMap.insert(std::make_pair(123,456)); 1765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 1775f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// if (inserted) 1785f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// // do stuff 1795f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// else 1805f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// // do other stuff 1815f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1825f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)namespace 1835f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles){ 1845f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) template <typename T1, typename T2> 1855f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) struct tier { 1865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef T1 &first_type; 1875f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) typedef T2 &second_type; 1885f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1895f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) first_type first; 1905f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) second_type second; 1915f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 1925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) tier(first_type f, second_type s) : first(f), second(s) { } 1935f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) tier& operator=(const std::pair<T1, T2>& p) { 1945f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) first = p.first; 1955f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) second = p.second; 1965f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return *this; 1975f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 1985f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) }; 1995f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 2005f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2015f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template <typename T1, typename T2> 2025f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline tier<T1, T2> tie(T1& f, T2& s) { 2035f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return tier<T1, T2>(f, s); 2045f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 2055f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2065f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 2075f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Extra additions to arrays 2085f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)//===----------------------------------------------------------------------===// 2095f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2105f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)/// Find where an array ends (for ending iterators) 2115f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)/// This returns a pointer to the byte immediately 2125f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)/// after the end of an array. 2135f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template<class T, std::size_t N> 2145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline T *array_endof(T (&x)[N]) { 2155f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return x+N; 2165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 2175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2185f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)/// Find the length of an array. 2195f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)template<class T, std::size_t N> 2205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)inline size_t array_lengthof(T (&x)[N]) { 2215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return N; 2225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 2235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} // End llvm namespace 2255f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#endif 2275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)