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47 lines
1.3 KiB
ReStructuredText
47 lines
1.3 KiB
ReStructuredText
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.. _sprout-string-char_traits-find-iterator:
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###############################################################################
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find
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###############################################################################
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Interface
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========================================
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.. sourcecode:: c++
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template<typename ConstInputIterator>
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static SPROUT_CONSTEXPR ConstInputIterator find(ConstInputIterator s, std::size_t n, char_type const& a);
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Returns
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========================================
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| The smallest q in [s,s+n) such that ``eq(*q, a)`` is true, ``s + n`` otherwise.
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Remarks
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========================================
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| Pointer version returns 0 when it not found, but this function returns ``s + n``.
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Examples
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========================================
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.. sourcecode:: c++
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#include <sprout/string.hpp>
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#include <sprout/iterator.hpp>
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using namespace sprout;
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SPROUT_STATIC_CONSTEXPR auto x = string<8>("homuhomu");
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SPROUT_STATIC_CONSTEXPR auto result = char_traits<char>::find(x.begin(), 8, 'm');
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static_assert(sprout::distance(x, result) == 2, "a found position is 2.");
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Complexity
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========================================
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| linear.
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| Recursive function invocations in *O(logN)* (logarithmic) depth.
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Header
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========================================
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| ``sprout/string/char_traits.hpp``
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| Convenience header: ``sprout/string.hpp``
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