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add doc: basic_string (array compatible)

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Bolero-MURAKAMI 2013-09-06 16:46:03 +09:00
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source/libs/string/basic_string/empty.rst Normal file
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.. _sprout-string-basic_string-empty:
###############################################################################
empty
###############################################################################
Interface
========================================
.. sourcecode:: c++
SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT;
Returns
========================================
| true if the array size is 0, false otherwise.
Examples
========================================
.. sourcecode:: c++
#include <sprout/string.hpp>
using namespace sprout;
SPROUT_STATIC_CONSTEXPR auto input = string<8>("");
static_assert(input.empty(), "input is empty.");
Complexity
========================================
| Recursive function invocations in *O(1)* (constant) depth.
Header
========================================
| ``sprout/string/string.hpp``
| Convenience header: ``sprout/string.hpp``