all_of_equal

Interface

template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool
all_of_equal(InputIterator first, InputIterator last, T const& value);

Returns

true if [first,last) is empty or if *i == value is true for every iterator i in the range [first,last), and false otherwise.

Examples

#include <sprout/algorithm/all_of_equal.hpp>
#include <sprout/array.hpp>
#include <sprout/container.hpp>
using namespace sprout;

SPROUT_STATIC_CONSTEXPR auto input = array<int, 10>{{1, 1, 1, 1, 1, 1, 1, 1, 1, 1}};
SPROUT_STATIC_CONSTEXPR auto result = sprout::all_of_equal(begin(input), end(input), 1);
static_assert(result, "all of input is equal to 1.");

Complexity

At most last - first applications of the predicate.

Recursive function invocations in O(logN) (logarithmic) depth.

Header

sprout/algorithm/all_of_equal.hpp

Convenience header: sprout/algorithm.hpp