// Extra additions to <functional>
//===----------------------------------------------------------------------===//
+template<class Ty>
+struct identity : public std::unary_function<Ty, Ty> {
+ Ty &operator()(Ty &self) const {
+ return self;
+ }
+ const Ty &operator()(const Ty &self) const {
+ return self;
+ }
+};
+
template<class Ty>
struct less_ptr : public std::binary_function<Ty, Ty, bool> {
bool operator()(const Ty* left, const Ty* right) const {
// for_each(V.begin(), B.end(), deleter<Interval>);
//
template <class T>
-static inline void deleter(T *Ptr) {
+inline void deleter(T *Ptr) {
delete Ptr;
}
// // do stuff
// else
// // do other stuff
-
-namespace
-{
- template <typename T1, typename T2>
- struct tier {
- typedef T1 &first_type;
- typedef T2 &second_type;
-
- first_type first;
- second_type second;
-
- tier(first_type f, second_type s) : first(f), second(s) { }
- tier& operator=(const std::pair<T1, T2>& p) {
- first = p.first;
- second = p.second;
- return *this;
- }
- };
-}
+template <typename T1, typename T2>
+struct tier {
+ typedef T1 &first_type;
+ typedef T2 &second_type;
+
+ first_type first;
+ second_type second;
+
+ tier(first_type f, second_type s) : first(f), second(s) { }
+ tier& operator=(const std::pair<T1, T2>& p) {
+ first = p.first;
+ second = p.second;
+ return *this;
+ }
+};
template <typename T1, typename T2>
inline tier<T1, T2> tie(T1& f, T2& s) {
return tier<T1, T2>(f, s);
}
+/// \brief Function object to check whether the first component of a std::pair
+/// compares less than the first component of another std::pair.
+struct less_first {
+ template <typename T> bool operator()(const T &lhs, const T &rhs) const {
+ return lhs.first < rhs.first;
+ }
+};
+
+/// \brief Function object to check whether the second component of a std::pair
+/// compares less than the second component of another std::pair.
+struct less_second {
+ template <typename T> bool operator()(const T &lhs, const T &rhs) const {
+ return lhs.second < rhs.second;
+ }
+};
+
//===----------------------------------------------------------------------===//
// Extra additions for arrays
//===----------------------------------------------------------------------===//
/// array_pod_sort_comparator - This is helper function for array_pod_sort,
/// which just uses operator< on T.
template<typename T>
-static inline int array_pod_sort_comparator(const void *P1, const void *P2) {
+inline int array_pod_sort_comparator(const void *P1, const void *P2) {
if (*reinterpret_cast<const T*>(P1) < *reinterpret_cast<const T*>(P2))
return -1;
if (*reinterpret_cast<const T*>(P2) < *reinterpret_cast<const T*>(P1))
return 0;
}
-/// get_array_pad_sort_comparator - This is an internal helper function used to
+/// get_array_pod_sort_comparator - This is an internal helper function used to
/// get type deduction of T right.
template<typename T>
-static int (*get_array_pad_sort_comparator(const T &))
+inline int (*get_array_pod_sort_comparator(const T &))
(const void*, const void*) {
return array_pod_sort_comparator<T>;
}
/// NOTE: If qsort_r were portable, we could allow a custom comparator and
/// default to std::less.
template<class IteratorTy>
-static inline void array_pod_sort(IteratorTy Start, IteratorTy End) {
+inline void array_pod_sort(IteratorTy Start, IteratorTy End) {
// Don't dereference start iterator of empty sequence.
if (Start == End) return;
qsort(&*Start, End-Start, sizeof(*Start),
- get_array_pad_sort_comparator(*Start));
+ get_array_pod_sort_comparator(*Start));
}
-template<class IteratorTy>
-static inline void array_pod_sort(IteratorTy Start, IteratorTy End,
- int (*Compare)(const void*, const void*)) {
+template <class IteratorTy>
+inline void array_pod_sort(
+ IteratorTy Start, IteratorTy End,
+ int (*Compare)(
+ const typename std::iterator_traits<IteratorTy>::value_type *,
+ const typename std::iterator_traits<IteratorTy>::value_type *)) {
// Don't dereference start iterator of empty sequence.
if (Start == End) return;
- qsort(&*Start, End-Start, sizeof(*Start), Compare);
+ qsort(&*Start, End - Start, sizeof(*Start),
+ reinterpret_cast<int (*)(const void *, const void *)>(Compare));
}
-
+
//===----------------------------------------------------------------------===//
// Extra additions to <algorithm>
//===----------------------------------------------------------------------===//