Sprout/source/libs/string/char_traits/lt.rst
2013-09-05 17:16:56 +09:00

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.. _sprout-string-char_traits-lt:
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lt
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Interface
========================================
.. sourcecode:: c++
static SPROUT_CONSTEXPR bool lt(char_type c1, char_type c2) SPROUT_NOEXCEPT;
Returns
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| Equivalent to ``std::char_traits<Char>::lt(c1, c2)``.
Examples
========================================
.. sourcecode:: c++
#include <sprout/string.hpp>
using namespace sprout;
SPROUT_STATIC_CONSTEXPR char x = 'H';
SPROUT_STATIC_CONSTEXPR char y = 'M';
SPROUT_STATIC_CONSTEXPR auto result = char_traits<char>::lt(x, y);
static_assert(result, "x is less than y.");
Complexity
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| constant.
| Recursive function invocations in *O(1)* (constant) depth.
Header
========================================
| ``sprout/string/char_traits.hpp``
| Convenience header: ``sprout/string.hpp``