Merge pull request #35 from very-cool-name/apolukhin/constexpr

Apolukhin/constexpr
This commit is contained in:
Marshall Clow
2017-08-29 09:07:59 -07:00
committed by GitHub
31 changed files with 714 additions and 238 deletions

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@ -40,7 +40,7 @@ T identity_operation ( std::plus<T> ) { return T(0); }
// \remark Taken from Knuth, The Art of Computer Programming, Volume 2:
// Seminumerical Algorithms, Section 4.6.3
template <typename T, typename Integer>
typename boost::enable_if<boost::is_integral<Integer>, T>::type
BOOST_CXX14_CONSTEXPR typename boost::enable_if<boost::is_integral<Integer>, T>::type
power (T x, Integer n) {
T y = 1; // Should be "T y{1};"
if (n == 0) return y;
@ -67,7 +67,7 @@ power (T x, Integer n) {
// \remark Taken from Knuth, The Art of Computer Programming, Volume 2:
// Seminumerical Algorithms, Section 4.6.3
template <typename T, typename Integer, typename Operation>
typename boost::enable_if<boost::is_integral<Integer>, T>::type
BOOST_CXX14_CONSTEXPR typename boost::enable_if<boost::is_integral<Integer>, T>::type
power (T x, Integer n, Operation op) {
T y = identity_operation(op);
if (n == 0) return y;

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@ -46,7 +46,7 @@ namespace boost { namespace algorithm {
/// p ( a, b ) returns a boolean.
///
template<typename T, typename Pred>
T const & clamp ( T const& val,
BOOST_CXX14_CONSTEXPR T const & clamp ( T const& val,
typename boost::mpl::identity<T>::type const & lo,
typename boost::mpl::identity<T>::type const & hi, Pred p )
{
@ -68,7 +68,7 @@ namespace boost { namespace algorithm {
/// \param hi The upper bound of the range to be clamped to
///
template<typename T>
T const& clamp ( const T& val,
BOOST_CXX14_CONSTEXPR T const& clamp ( const T& val,
typename boost::mpl::identity<T>::type const & lo,
typename boost::mpl::identity<T>::type const & hi )
{
@ -87,7 +87,7 @@ namespace boost { namespace algorithm {
/// \param hi The upper bound of the range to be clamped to
///
template<typename InputIterator, typename OutputIterator>
OutputIterator clamp_range ( InputIterator first, InputIterator last, OutputIterator out,
BOOST_CXX14_CONSTEXPR OutputIterator clamp_range ( InputIterator first, InputIterator last, OutputIterator out,
typename std::iterator_traits<InputIterator>::value_type const & lo,
typename std::iterator_traits<InputIterator>::value_type const & hi )
{
@ -108,7 +108,7 @@ namespace boost { namespace algorithm {
/// \param hi The upper bound of the range to be clamped to
///
template<typename Range, typename OutputIterator>
typename boost::disable_if_c<boost::is_same<Range, OutputIterator>::value, OutputIterator>::type
BOOST_CXX14_CONSTEXPR typename boost::disable_if_c<boost::is_same<Range, OutputIterator>::value, OutputIterator>::type
clamp_range ( const Range &r, OutputIterator out,
typename std::iterator_traits<typename boost::range_iterator<const Range>::type>::value_type const & lo,
typename std::iterator_traits<typename boost::range_iterator<const Range>::type>::value_type const & hi )
@ -133,7 +133,7 @@ namespace boost { namespace algorithm {
///
template<typename InputIterator, typename OutputIterator, typename Pred>
OutputIterator clamp_range ( InputIterator first, InputIterator last, OutputIterator out,
BOOST_CXX14_CONSTEXPR OutputIterator clamp_range ( InputIterator first, InputIterator last, OutputIterator out,
typename std::iterator_traits<InputIterator>::value_type const & lo,
typename std::iterator_traits<InputIterator>::value_type const & hi, Pred p )
{
@ -160,7 +160,7 @@ namespace boost { namespace algorithm {
// Disable this template if the first two parameters are the same type;
// In that case, the user will get the two iterator version.
template<typename Range, typename OutputIterator, typename Pred>
typename boost::disable_if_c<boost::is_same<Range, OutputIterator>::value, OutputIterator>::type
BOOST_CXX14_CONSTEXPR typename boost::disable_if_c<boost::is_same<Range, OutputIterator>::value, OutputIterator>::type
clamp_range ( const Range &r, OutputIterator out,
typename std::iterator_traits<typename boost::range_iterator<const Range>::type>::value_type const & lo,
typename std::iterator_traits<typename boost::range_iterator<const Range>::type>::value_type const & hi,

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@ -27,7 +27,7 @@ namespace boost { namespace algorithm {
///
/// \note This function is part of the C++2011 standard library.
template<typename InputIterator, typename Predicate>
bool all_of ( InputIterator first, InputIterator last, Predicate p )
BOOST_CXX14_CONSTEXPR bool all_of ( InputIterator first, InputIterator last, Predicate p )
{
for ( ; first != last; ++first )
if ( !p(*first))
@ -43,7 +43,7 @@ bool all_of ( InputIterator first, InputIterator last, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename Predicate>
bool all_of ( const Range &r, Predicate p )
BOOST_CXX14_CONSTEXPR bool all_of ( const Range &r, Predicate p )
{
return boost::algorithm::all_of ( boost::begin (r), boost::end (r), p );
}
@ -57,7 +57,7 @@ bool all_of ( const Range &r, Predicate p )
/// \param val A value to compare against
///
template<typename InputIterator, typename T>
bool all_of_equal ( InputIterator first, InputIterator last, const T &val )
BOOST_CXX14_CONSTEXPR bool all_of_equal ( InputIterator first, InputIterator last, const T &val )
{
for ( ; first != last; ++first )
if ( val != *first )
@ -73,7 +73,7 @@ bool all_of_equal ( InputIterator first, InputIterator last, const T &val )
/// \param val A value to compare against
///
template<typename Range, typename T>
bool all_of_equal ( const Range &r, const T &val )
BOOST_CXX14_CONSTEXPR bool all_of_equal ( const Range &r, const T &val )
{
return boost::algorithm::all_of_equal ( boost::begin (r), boost::end (r), val );
}

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@ -28,7 +28,7 @@ namespace boost { namespace algorithm {
/// \param p A predicate for testing the elements of the sequence
///
template<typename InputIterator, typename Predicate>
bool any_of ( InputIterator first, InputIterator last, Predicate p )
BOOST_CXX14_CONSTEXPR bool any_of ( InputIterator first, InputIterator last, Predicate p )
{
for ( ; first != last; ++first )
if ( p(*first))
@ -44,7 +44,7 @@ bool any_of ( InputIterator first, InputIterator last, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename Predicate>
bool any_of ( const Range &r, Predicate p )
BOOST_CXX14_CONSTEXPR bool any_of ( const Range &r, Predicate p )
{
return boost::algorithm::any_of (boost::begin (r), boost::end (r), p);
}
@ -58,7 +58,7 @@ bool any_of ( const Range &r, Predicate p )
/// \param val A value to compare against
///
template<typename InputIterator, typename V>
bool any_of_equal ( InputIterator first, InputIterator last, const V &val )
BOOST_CXX14_CONSTEXPR bool any_of_equal ( InputIterator first, InputIterator last, const V &val )
{
for ( ; first != last; ++first )
if ( val == *first )
@ -74,7 +74,7 @@ bool any_of_equal ( InputIterator first, InputIterator last, const V &val )
/// \param val A value to compare against
///
template<typename Range, typename V>
bool any_of_equal ( const Range &r, const V &val )
BOOST_CXX14_CONSTEXPR bool any_of_equal ( const Range &r, const V &val )
{
return boost::algorithm::any_of_equal (boost::begin (r), boost::end (r), val);
}

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@ -29,7 +29,7 @@ namespace boost { namespace algorithm {
/// \param p A predicate for testing the elements of the range
/// \note This function is part of the C++2011 standard library.
template<typename InputIterator, typename OutputIterator, typename Predicate>
OutputIterator copy_if ( InputIterator first, InputIterator last, OutputIterator result, Predicate p )
BOOST_CXX14_CONSTEXPR OutputIterator copy_if ( InputIterator first, InputIterator last, OutputIterator result, Predicate p )
{
for ( ; first != last; ++first )
if (p(*first))
@ -47,7 +47,7 @@ OutputIterator copy_if ( InputIterator first, InputIterator last, OutputIterator
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename OutputIterator, typename Predicate>
OutputIterator copy_if ( const Range &r, OutputIterator result, Predicate p )
BOOST_CXX14_CONSTEXPR OutputIterator copy_if ( const Range &r, OutputIterator result, Predicate p )
{
return boost::algorithm::copy_if (boost::begin (r), boost::end(r), result, p);
}
@ -64,7 +64,7 @@ OutputIterator copy_if ( const Range &r, OutputIterator result, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename InputIterator, typename OutputIterator, typename Predicate>
std::pair<InputIterator, OutputIterator>
BOOST_CXX14_CONSTEXPR std::pair<InputIterator, OutputIterator>
copy_while ( InputIterator first, InputIterator last, OutputIterator result, Predicate p )
{
for ( ; first != last && p(*first); ++first )
@ -82,7 +82,7 @@ copy_while ( InputIterator first, InputIterator last, OutputIterator result, Pre
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename OutputIterator, typename Predicate>
std::pair<typename boost::range_iterator<const Range>::type, OutputIterator>
BOOST_CXX14_CONSTEXPR std::pair<typename boost::range_iterator<const Range>::type, OutputIterator>
copy_while ( const Range &r, OutputIterator result, Predicate p )
{
return boost::algorithm::copy_while (boost::begin (r), boost::end(r), result, p);
@ -100,7 +100,7 @@ copy_while ( const Range &r, OutputIterator result, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename InputIterator, typename OutputIterator, typename Predicate>
std::pair<InputIterator, OutputIterator>
BOOST_CXX14_CONSTEXPR std::pair<InputIterator, OutputIterator>
copy_until ( InputIterator first, InputIterator last, OutputIterator result, Predicate p )
{
for ( ; first != last && !p(*first); ++first )
@ -118,7 +118,7 @@ copy_until ( InputIterator first, InputIterator last, OutputIterator result, Pre
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename OutputIterator, typename Predicate>
std::pair<typename boost::range_iterator<const Range>::type, OutputIterator>
BOOST_CXX14_CONSTEXPR std::pair<typename boost::range_iterator<const Range>::type, OutputIterator>
copy_until ( const Range &r, OutputIterator result, Predicate p )
{
return boost::algorithm::copy_until (boost::begin (r), boost::end(r), result, p);

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@ -24,7 +24,7 @@ namespace boost { namespace algorithm {
/// \param result An output iterator to write the results into
/// \note This function is part of the C++2011 standard library.
template <typename InputIterator, typename Size, typename OutputIterator>
OutputIterator copy_n ( InputIterator first, Size n, OutputIterator result )
BOOST_CXX14_CONSTEXPR OutputIterator copy_n ( InputIterator first, Size n, OutputIterator result )
{
for ( ; n > 0; --n, ++first, ++result )
*result = *first;

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@ -26,7 +26,7 @@ namespace boost { namespace algorithm {
/// \param p A predicate for testing the elements of the range
/// \note This function is part of the C++2011 standard library.
template<typename InputIterator, typename Predicate>
InputIterator find_if_not ( InputIterator first, InputIterator last, Predicate p )
BOOST_CXX14_CONSTEXPR InputIterator find_if_not ( InputIterator first, InputIterator last, Predicate p )
{
for ( ; first != last; ++first )
if ( !p(*first))
@ -42,7 +42,7 @@ InputIterator find_if_not ( InputIterator first, InputIterator last, Predicate p
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename Predicate>
typename boost::range_iterator<const Range>::type find_if_not ( const Range &r, Predicate p )
BOOST_CXX14_CONSTEXPR typename boost::range_iterator<const Range>::type find_if_not ( const Range &r, Predicate p )
{
return boost::algorithm::find_if_not (boost::begin (r), boost::end(r), p);
}

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@ -25,7 +25,7 @@ namespace boost { namespace algorithm {
/// \param value The initial value of the sequence to be generated
/// \note This function is part of the C++2011 standard library.
template <typename ForwardIterator, typename T>
void iota ( ForwardIterator first, ForwardIterator last, T value )
BOOST_CXX14_CONSTEXPR void iota ( ForwardIterator first, ForwardIterator last, T value )
{
for ( ; first != last; ++first, ++value )
*first = value;
@ -38,7 +38,7 @@ void iota ( ForwardIterator first, ForwardIterator last, T value )
/// \param value The initial value of the sequence to be generated
///
template <typename Range, typename T>
void iota ( Range &r, T value )
BOOST_CXX14_CONSTEXPR void iota ( Range &r, T value )
{
boost::algorithm::iota (boost::begin(r), boost::end(r), value);
}
@ -52,7 +52,7 @@ void iota ( Range &r, T value )
/// \param n The number of items to write
///
template <typename OutputIterator, typename T>
OutputIterator iota_n ( OutputIterator out, T value, std::size_t n )
BOOST_CXX14_CONSTEXPR OutputIterator iota_n ( OutputIterator out, T value, std::size_t n )
{
for ( ; n > 0; --n, ++value )
*out++ = value;

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@ -26,7 +26,7 @@ namespace boost { namespace algorithm {
/// \param p The predicate to test the values with
/// \note This function is part of the C++2011 standard library.
template <typename InputIterator, typename UnaryPredicate>
bool is_partitioned ( InputIterator first, InputIterator last, UnaryPredicate p )
BOOST_CXX14_CONSTEXPR bool is_partitioned ( InputIterator first, InputIterator last, UnaryPredicate p )
{
// Run through the part that satisfy the predicate
for ( ; first != last; ++first )
@ -47,7 +47,7 @@ bool is_partitioned ( InputIterator first, InputIterator last, UnaryPredicate p
/// \param p The predicate to test the values with
///
template <typename Range, typename UnaryPredicate>
bool is_partitioned ( const Range &r, UnaryPredicate p )
BOOST_CXX14_CONSTEXPR bool is_partitioned ( const Range &r, UnaryPredicate p )
{
return boost::algorithm::is_partitioned (boost::begin(r), boost::end(r), p);
}

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@ -34,7 +34,7 @@ namespace boost { namespace algorithm {
/// \param p A binary predicate that returns true if two elements are ordered.
///
template <typename ForwardIterator, typename Pred>
ForwardIterator is_sorted_until ( ForwardIterator first, ForwardIterator last, Pred p )
BOOST_CXX14_CONSTEXPR ForwardIterator is_sorted_until ( ForwardIterator first, ForwardIterator last, Pred p )
{
if ( first == last ) return last; // the empty sequence is ordered
ForwardIterator next = first;
@ -54,7 +54,7 @@ namespace boost { namespace algorithm {
/// \param last One past the end of the sequence
///
template <typename ForwardIterator>
ForwardIterator is_sorted_until ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR ForwardIterator is_sorted_until ( ForwardIterator first, ForwardIterator last )
{
typedef typename std::iterator_traits<ForwardIterator>::value_type value_type;
return boost::algorithm::is_sorted_until ( first, last, std::less<value_type>());
@ -69,7 +69,7 @@ namespace boost { namespace algorithm {
/// \param p A binary predicate that returns true if two elements are ordered.
///
template <typename ForwardIterator, typename Pred>
bool is_sorted ( ForwardIterator first, ForwardIterator last, Pred p )
BOOST_CXX14_CONSTEXPR bool is_sorted ( ForwardIterator first, ForwardIterator last, Pred p )
{
return boost::algorithm::is_sorted_until (first, last, p) == last;
}
@ -81,7 +81,7 @@ namespace boost { namespace algorithm {
/// \param last One past the end of the sequence
///
template <typename ForwardIterator>
bool is_sorted ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR bool is_sorted ( ForwardIterator first, ForwardIterator last )
{
return boost::algorithm::is_sorted_until (first, last) == last;
}
@ -98,7 +98,7 @@ namespace boost { namespace algorithm {
/// \param p A binary predicate that returns true if two elements are ordered.
///
template <typename R, typename Pred>
typename boost::lazy_disable_if_c<
BOOST_CXX14_CONSTEXPR typename boost::lazy_disable_if_c<
boost::is_same<R, Pred>::value,
typename boost::range_iterator<const R>
>::type is_sorted_until ( const R &range, Pred p )
@ -113,7 +113,7 @@ namespace boost { namespace algorithm {
/// \param range The range to be tested.
///
template <typename R>
typename boost::range_iterator<const R>::type is_sorted_until ( const R &range )
BOOST_CXX14_CONSTEXPR typename boost::range_iterator<const R>::type is_sorted_until ( const R &range )
{
return boost::algorithm::is_sorted_until ( boost::begin ( range ), boost::end ( range ));
}
@ -126,7 +126,7 @@ namespace boost { namespace algorithm {
/// \param p A binary predicate that returns true if two elements are ordered.
///
template <typename R, typename Pred>
typename boost::lazy_disable_if_c< boost::is_same<R, Pred>::value, boost::mpl::identity<bool> >::type
BOOST_CXX14_CONSTEXPR typename boost::lazy_disable_if_c< boost::is_same<R, Pred>::value, boost::mpl::identity<bool> >::type
is_sorted ( const R &range, Pred p )
{
return boost::algorithm::is_sorted ( boost::begin ( range ), boost::end ( range ), p );
@ -139,7 +139,7 @@ namespace boost { namespace algorithm {
/// \param range The range to be tested.
///
template <typename R>
bool is_sorted ( const R &range )
BOOST_CXX14_CONSTEXPR bool is_sorted ( const R &range )
{
return boost::algorithm::is_sorted ( boost::begin ( range ), boost::end ( range ));
}
@ -159,7 +159,7 @@ namespace boost { namespace algorithm {
/// \note This function will return true for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_strictly_increasing instead.
template <typename ForwardIterator>
bool is_increasing ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR bool is_increasing ( ForwardIterator first, ForwardIterator last )
{
typedef typename std::iterator_traits<ForwardIterator>::value_type value_type;
return boost::algorithm::is_sorted (first, last, std::less<value_type>());
@ -175,7 +175,7 @@ namespace boost { namespace algorithm {
/// \note This function will return true for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_strictly_increasing instead.
template <typename R>
bool is_increasing ( const R &range )
BOOST_CXX14_CONSTEXPR bool is_increasing ( const R &range )
{
return is_increasing ( boost::begin ( range ), boost::end ( range ));
}
@ -192,7 +192,7 @@ namespace boost { namespace algorithm {
/// \note This function will return true for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_strictly_decreasing instead.
template <typename ForwardIterator>
bool is_decreasing ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR bool is_decreasing ( ForwardIterator first, ForwardIterator last )
{
typedef typename std::iterator_traits<ForwardIterator>::value_type value_type;
return boost::algorithm::is_sorted (first, last, std::greater<value_type>());
@ -207,7 +207,7 @@ namespace boost { namespace algorithm {
/// \note This function will return true for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_strictly_decreasing instead.
template <typename R>
bool is_decreasing ( const R &range )
BOOST_CXX14_CONSTEXPR bool is_decreasing ( const R &range )
{
return is_decreasing ( boost::begin ( range ), boost::end ( range ));
}
@ -224,7 +224,7 @@ namespace boost { namespace algorithm {
/// \note This function will return false for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_increasing instead.
template <typename ForwardIterator>
bool is_strictly_increasing ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR bool is_strictly_increasing ( ForwardIterator first, ForwardIterator last )
{
typedef typename std::iterator_traits<ForwardIterator>::value_type value_type;
return boost::algorithm::is_sorted (first, last, std::less_equal<value_type>());
@ -239,7 +239,7 @@ namespace boost { namespace algorithm {
/// \note This function will return false for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_increasing instead.
template <typename R>
bool is_strictly_increasing ( const R &range )
BOOST_CXX14_CONSTEXPR bool is_strictly_increasing ( const R &range )
{
return is_strictly_increasing ( boost::begin ( range ), boost::end ( range ));
}
@ -255,7 +255,7 @@ namespace boost { namespace algorithm {
/// \note This function will return false for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_decreasing instead.
template <typename ForwardIterator>
bool is_strictly_decreasing ( ForwardIterator first, ForwardIterator last )
BOOST_CXX14_CONSTEXPR bool is_strictly_decreasing ( ForwardIterator first, ForwardIterator last )
{
typedef typename std::iterator_traits<ForwardIterator>::value_type value_type;
return boost::algorithm::is_sorted (first, last, std::greater_equal<value_type>());
@ -270,7 +270,7 @@ namespace boost { namespace algorithm {
/// \note This function will return false for sequences that contain items that compare
/// equal. If that is not what you intended, you should use is_decreasing instead.
template <typename R>
bool is_strictly_decreasing ( const R &range )
BOOST_CXX14_CONSTEXPR bool is_strictly_decreasing ( const R &range )
{
return is_strictly_decreasing ( boost::begin ( range ), boost::end ( range ));
}

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@ -26,7 +26,7 @@ namespace boost { namespace algorithm {
/// \param p A predicate for testing the elements of the sequence
///
template<typename InputIterator, typename Predicate>
bool none_of ( InputIterator first, InputIterator last, Predicate p )
BOOST_CXX14_CONSTEXPR bool none_of ( InputIterator first, InputIterator last, Predicate p )
{
for ( ; first != last; ++first )
if ( p(*first))
@ -42,7 +42,7 @@ bool none_of ( InputIterator first, InputIterator last, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename Predicate>
bool none_of ( const Range &r, Predicate p )
BOOST_CXX14_CONSTEXPR bool none_of ( const Range &r, Predicate p )
{
return boost::algorithm::none_of (boost::begin (r), boost::end (r), p );
}
@ -56,7 +56,7 @@ bool none_of ( const Range &r, Predicate p )
/// \param val A value to compare against
///
template<typename InputIterator, typename V>
bool none_of_equal ( InputIterator first, InputIterator last, const V &val )
BOOST_CXX14_CONSTEXPR bool none_of_equal ( InputIterator first, InputIterator last, const V &val )
{
for ( ; first != last; ++first )
if ( val == *first )
@ -72,7 +72,7 @@ bool none_of_equal ( InputIterator first, InputIterator last, const V &val )
/// \param val A value to compare against
///
template<typename Range, typename V>
bool none_of_equal ( const Range &r, const V & val )
BOOST_CXX14_CONSTEXPR bool none_of_equal ( const Range &r, const V & val )
{
return boost::algorithm::none_of_equal (boost::begin (r), boost::end (r), val);
}

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@ -28,7 +28,7 @@ namespace boost { namespace algorithm {
/// \param p A predicate for testing the elements of the sequence
///
template<typename InputIterator, typename Predicate>
bool one_of ( InputIterator first, InputIterator last, Predicate p )
BOOST_CXX14_CONSTEXPR bool one_of ( InputIterator first, InputIterator last, Predicate p )
{
InputIterator i = std::find_if (first, last, p);
if (i == last)
@ -43,7 +43,7 @@ bool one_of ( InputIterator first, InputIterator last, Predicate p )
/// \param p A predicate for testing the elements of the range
///
template<typename Range, typename Predicate>
bool one_of ( const Range &r, Predicate p )
BOOST_CXX14_CONSTEXPR bool one_of ( const Range &r, Predicate p )
{
return boost::algorithm::one_of ( boost::begin (r), boost::end (r), p );
}

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@ -14,6 +14,7 @@
#include <utility> // for std::pair
#include <boost/config.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
@ -35,7 +36,7 @@ namespace boost { namespace algorithm {
/// \note This function is part of the C++2011 standard library.
template <typename InputIterator,
typename OutputIterator1, typename OutputIterator2, typename UnaryPredicate>
std::pair<OutputIterator1, OutputIterator2>
BOOST_CXX14_CONSTEXPR std::pair<OutputIterator1, OutputIterator2>
partition_copy ( InputIterator first, InputIterator last,
OutputIterator1 out_true, OutputIterator2 out_false, UnaryPredicate p )
{
@ -57,7 +58,7 @@ partition_copy ( InputIterator first, InputIterator last,
///
template <typename Range, typename OutputIterator1, typename OutputIterator2,
typename UnaryPredicate>
std::pair<OutputIterator1, OutputIterator2>
BOOST_CXX14_CONSTEXPR std::pair<OutputIterator1, OutputIterator2>
partition_copy ( const Range &r, OutputIterator1 out_true, OutputIterator2 out_false,
UnaryPredicate p )
{

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@ -15,16 +15,24 @@
#include <algorithm> // for std::equal
#include <iterator>
#ifdef __cpp_lib_array_constexpr // or cpp17 compiler
// if compiled according to C++17 standard or std functions are constexpr
#define BOOST_CONSTEXPR_IF_STD_CONSTEXPR constexpr
#else
#define BOOST_CONSTEXPR_IF_STD_CONSTEXPR
#endif
namespace boost { namespace algorithm {
namespace detail {
template <class T1, class T2>
struct eq {
bool operator () ( const T1& v1, const T2& v2 ) const { return v1 == v2 ;}
BOOST_CONSTEXPR bool operator () ( const T1& v1, const T2& v2 ) const { return v1 == v2 ;}
};
template <class RandomAccessIterator1, class RandomAccessIterator2, class BinaryPredicate>
BOOST_CONSTEXPR_IF_STD_CONSTEXPR
bool equal ( RandomAccessIterator1 first1, RandomAccessIterator1 last1,
RandomAccessIterator2 first2, RandomAccessIterator2 last2, BinaryPredicate pred,
std::random_access_iterator_tag, std::random_access_iterator_tag )
@ -37,6 +45,7 @@ namespace detail {
}
template <class InputIterator1, class InputIterator2, class BinaryPredicate>
BOOST_CXX14_CONSTEXPR
bool equal ( InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2, BinaryPredicate pred,
std::input_iterator_tag, std::input_iterator_tag )
@ -60,6 +69,7 @@ namespace detail {
/// \param last2 One past the end of the second range.
/// \param pred A predicate for comparing the elements of the ranges
template <class InputIterator1, class InputIterator2, class BinaryPredicate>
BOOST_CXX14_CONSTEXPR
bool equal ( InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2, BinaryPredicate pred )
{
@ -78,6 +88,7 @@ bool equal ( InputIterator1 first1, InputIterator1 last1,
/// \param first2 The start of the second range.
/// \param last2 One past the end of the second range.
template <class InputIterator1, class InputIterator2>
BOOST_CXX14_CONSTEXPR
bool equal ( InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2 )
{

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@ -13,6 +13,7 @@
#define BOOST_ALGORITHM_MISMATCH_HPP
#include <utility> // for std::pair
#include <boost/config.hpp>
namespace boost { namespace algorithm {
@ -27,7 +28,7 @@ namespace boost { namespace algorithm {
/// \param last2 One past the end of the second range.
/// \param pred A predicate for comparing the elements of the ranges
template <class InputIterator1, class InputIterator2, class BinaryPredicate>
std::pair<InputIterator1, InputIterator2> mismatch (
BOOST_CXX14_CONSTEXPR std::pair<InputIterator1, InputIterator2> mismatch (
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2,
BinaryPredicate pred )
@ -47,7 +48,7 @@ std::pair<InputIterator1, InputIterator2> mismatch (
/// \param first2 The start of the second range.
/// \param last2 One past the end of the second range.
template <class InputIterator1, class InputIterator2>
std::pair<InputIterator1, InputIterator2> mismatch (
BOOST_CXX14_CONSTEXPR std::pair<InputIterator1, InputIterator2> mismatch (
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2 )
{