147 lines
3.2 KiB
C++
147 lines
3.2 KiB
C++
/*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
|
|
#ifdef __UTIL_VIEW_IPP
|
|
#error
|
|
#endif
|
|
#define __UTIL_VIEW_IPP
|
|
|
|
|
|
#include "debug.hpp"
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
template <size_t S>
|
|
constexpr
|
|
util::view<T>::view (const value_type(&arr)[S]) noexcept:
|
|
m_begin (arr),
|
|
m_end (arr + S)
|
|
{ ; }
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr
|
|
util::view<T>::view (T _begin, T _end) noexcept:
|
|
m_begin (_begin),
|
|
m_end (_end)
|
|
{ ; }
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr T
|
|
util::view<T>::begin (void) const noexcept
|
|
{
|
|
return cbegin ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr T
|
|
util::view<T>::end (void) const noexcept
|
|
{
|
|
return cend ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr T
|
|
util::view<T>::cbegin (void) const noexcept
|
|
{
|
|
return m_begin;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr T
|
|
util::view<T>::cend (void) const noexcept
|
|
{
|
|
return m_end;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
constexpr T
|
|
util::view<T>::find (value_type v) const noexcept
|
|
{
|
|
for (T i = cbegin (); i != cend (); ++i)
|
|
if (*i == v)
|
|
return i;
|
|
return cend ();
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
constexpr
|
|
bool
|
|
util::view<T>::empty (void) const noexcept
|
|
{
|
|
return m_begin == m_end;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <typename T>
|
|
constexpr
|
|
size_t
|
|
util::view<T>::size (void) const noexcept
|
|
{
|
|
return m_end - m_begin;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
constexpr
|
|
typename util::view<T>::value_type&
|
|
util::view<T>::operator[] (size_t idx) const noexcept
|
|
{
|
|
return m_begin[idx];
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
bool
|
|
util::view<T>::operator== (const view<T> rhs) const noexcept
|
|
{
|
|
return rhs.m_begin == m_begin &&
|
|
rhs.m_end == m_end;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <typename T>
|
|
std::ostream&
|
|
util::operator<< (std::ostream &os, util::view<T> v)
|
|
{
|
|
os << '[';
|
|
|
|
for (auto &i: v)
|
|
os << v << ", ";
|
|
|
|
os << ']';
|
|
return os;
|
|
}
|