2013-09-06 16:46:03 +09:00
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.. _sprout-string-basic_string-empty:
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2014-08-15 21:27:31 +09:00
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2013-09-06 16:46:03 +09:00
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###############################################################################
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empty
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###############################################################################
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Interface
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========================================
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.. sourcecode:: c++
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SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT;
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Returns
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========================================
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| true if the array size is 0, false otherwise.
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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>("");
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static_assert(input.empty(), "input is empty.");
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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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