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44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
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// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
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#ifndef CTL_LEXICOGRAPHICAL_COMPARE_H_
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#define CTL_LEXICOGRAPHICAL_COMPARE_H_
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namespace ctl {
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template<class InputIt1, class InputIt2>
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bool
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lexicographical_compare(InputIt1 first1,
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InputIt1 last1,
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InputIt2 first2,
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InputIt2 last2)
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{
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for (; (first1 != last1) && (first2 != last2); ++first1, ++first2) {
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if (*first1 < *first2)
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return true;
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if (*first2 < *first1)
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return false;
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}
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return (first1 == last1) && (first2 != last2);
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}
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template<class InputIt1, class InputIt2, class Compare>
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bool
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lexicographical_compare(InputIt1 first1,
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InputIt1 last1,
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InputIt2 first2,
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InputIt2 last2,
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Compare comp)
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{
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for (; (first1 != last1) && (first2 != last2); ++first1, ++first2) {
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if (comp(*first1, *first2))
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return true;
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if (comp(*first2, *first1))
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return false;
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}
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return (first1 == last1) && (first2 != last2);
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}
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} // namespace ctl
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#endif /* CTL_LEXICOGRAPHICAL_COMPARE_H_ */
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