// -*- C++ -*-
+/**
+ * \file lyxalgo.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Lars Gullik Bjønnes
+ *
+ * Full author contact details are available in file CREDITS.
+ *
+ * A variety of useful templates.
+ */
#ifndef LYX_ALGO_H
#define LYX_ALGO_H
-#include <utility>
-#include <iterator>
-#include <algorithm>
-
namespace lyx {
}
-struct firster {
- template <class P1, class P2>
- P1 operator()(std::pair<P1, P2> const & p) {
- return p.first;
- }
-};
-
-
-template <class InputIter, class OutputIter, class Func>
-OutputIter copy_if(InputIter first, InputIter last,
- OutputIter result, Func func)
-{
- for (; first != last; ++first) {
- if (func(*first)) {
- *result++ = *first;
- }
- }
- return result;
-}
-
-
-/// A slot in replacement for std::count for systems where it is broken.
-template <class Iterator, class T>
-typename std::iterator_traits<Iterator>::difference_type
-count (Iterator first, Iterator last, T const & value)
-{
-#ifdef HAVE_STD_COUNT
- return std::count(first, last, value);
-#else
- std::iterator_traits<Iterator>::difference_type n = 0;
- while (first != last)
- if (*first++ == value) ++n;
- return n;
-#endif
-}
-
} // namespace lyx
-#endif
+#endif // LYX_ALGO_H