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Sprout/docs/_sources/libs/algorithm/min.txt

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2013-08-23 14:30:09 +00:00
.. _sprout-algorithm-min:
###############################################################################
min
###############################################################################
Interface
========================================
.. sourcecode:: c++
template<typename T>
inline SPROUT_CONSTEXPR T const&
min(T const& a, T const& b);
template<typename T, typename Compare>
inline SPROUT_CONSTEXPR T const&
min(T const& a, T const& b, Compare comp);
Requires
========================================
| Type T is LessThanComparable.
Returns
========================================
| The smaller value.
Remarks
========================================
| Returns the first argument when the arguments are equivalent.
Examples
========================================
.. sourcecode:: c++
#include <sprout/algorithm/min.hpp>
#include <sprout/array.hpp>
using namespace sprout;
SPROUT_STATIC_CONSTEXPR auto input = array<int, 10>{{-1, 1}};
SPROUT_STATIC_CONSTEXPR auto result = sprout::min(input[0], input[1]);
static_assert(result == -1, "min value is -1.");
-------------------------------------------------------------------------------
Interface
========================================
.. sourcecode:: c++
template<typename T, typename Compare>
inline SPROUT_CONSTEXPR T
min(std::initializer_list<T> t, Compare comp);
template<typename T>
inline SPROUT_CONSTEXPR T
min(std::initializer_list<T> t);
Requires
========================================
| T is LessThanComparable and CopyConstructible and ``t.size() > 0``.
Returns
========================================
| The smallest value in the initializer_list.
Remarks
========================================
| Returns a copy of the leftmost argument when several arguments are equivalent to the smallest.
| If an implementation not support C++14 initializer_list (``SPROUT_NO_CXX14_INITIALIZER_LIST`` defined), then this function is not specified constexpr.
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Complexity
========================================
| Recursive function invocations in *O(logN)* (logarithmic) depth.
Header
========================================
| ``sprout/algorithm/min.hpp``
| Convenience header: ``sprout/algorithm.hpp``