2013-09-06 07:46:03 +00:00
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.. _sprout-string-basic_string-operator-subscript:
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###############################################################################
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operator[]
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###############################################################################
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Interface
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========================================
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.. sourcecode:: c++
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2013-11-04 05:31:03 +00:00
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SPROUT_CXX14_CONSTEXPR reference operator[](size_type n);
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2013-09-06 07:46:03 +00:00
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SPROUT_CONSTEXPR const_reference operator[](size_type n) const;
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Returns
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========================================
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| The element at the specified position in the string.
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Remarks
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========================================
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| It causes undefined behavior if n is out of bounds.
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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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using namespace sprout;
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SPROUT_STATIC_CONSTEXPR auto input = string<8>("homuhomu");
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static_assert(input[4] == 'h', "an element at position 4 is h.");
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Complexity
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========================================
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| Recursive function invocations in *O(1)* (constant) depth.
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Header
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========================================
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| ``sprout/string/string.hpp``
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| Convenience header: ``sprout/string.hpp``
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