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Fix clang 10 C++17 warnings about deprecated implicit assignment operators. (#158)

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C++17 deprecates implicit generation of assignment operator in presence of
explicitly declared copy constructor. In future standards this behavior may
be removed.

In the affected Boost.DateTime classes, the explicitly defined copy
constructors are functionally equivalent to those would be generated
implicitly, so we can just remove them. The additional benefit is that the
implicitly generated ones will have constexpr and noexcept specifications,
and will also allow implicit move constructors and assignment operators.
This commit is contained in:
Andrey Semashev
2020-06-23 23:28:16 +03:00
committed by GitHub
parent 356c5c2600
commit 76852e4aab
5 changed files with 0 additions and 27 deletions
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6
include/boost/date_time/date_duration.hpp
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@@ -42,12 +42,6 @@ namespace date_time {
days_(duration_rep::from_special(sv))
{}
// copy constructor required for addable<> & subtractable<>
//! Construct from another date_duration (Copy Constructor)
BOOST_CXX14_CONSTEXPR date_duration(const date_duration<duration_rep_traits>& other) :
days_(other.days_)
{}
//! returns days_ as it's instantiated type - used for streaming
BOOST_CXX14_CONSTEXPR duration_rep get_rep()const
{

5
include/boost/date_time/gregorian/greg_duration.hpp
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@@ -39,11 +39,6 @@ namespace gregorian {
BOOST_CXX14_CONSTEXPR
date_duration(date_time::special_values sv) : base_type(sv) {}
//! Copy constructor
BOOST_CXX14_CONSTEXPR
date_duration(const date_duration& other) : base_type(static_cast< base_type const& >(other))
{}
//! Construct from another date_duration
BOOST_CXX14_CONSTEXPR
date_duration(const base_type& other) : base_type(other)

6
include/boost/date_time/period_parser.hpp
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@@ -69,12 +69,6 @@ namespace boost { namespace date_time {
delimiters.push_back(string_type(period_closed_range_end_delimeter));
}
period_parser(const period_parser<date_type,CharT>& p_parser)
{
this->delimiters = p_parser.delimiters;
this->m_range_option = p_parser.m_range_option;
}
period_range_option range_option() const
{
return m_range_option;

5
include/boost/date_time/special_values_parser.hpp
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@@ -75,11 +75,6 @@ namespace boost { namespace date_time {
m_sv_strings = parse_tree_type(phrases, static_cast<int>(not_a_date_time));
}
special_values_parser(const special_values_parser<date_type,charT>& svp)
{
this->m_sv_strings = svp.m_sv_strings;
}
//! Replace special value strings
void sv_strings(const string_type& nadt_str,
const string_type& neg_inf_str,

5
include/boost/date_time/time_duration.hpp
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@@ -63,11 +63,6 @@ namespace date_time {
fractional_seconds_type frac_sec_in = 0) :
ticks_(rep_type::to_tick_count(hours_in,minutes_in,seconds_in,frac_sec_in))
{}
// copy constructor required for dividable<>
//! Construct from another time_duration (Copy constructor)
BOOST_CXX14_CONSTEXPR time_duration(const time_duration<T, rep_type>& other)
: ticks_(other.ticks_)
{}
//! Construct from special_values
BOOST_CXX14_CONSTEXPR time_duration(special_values sv) : ticks_(impl_type::from_special(sv))
{}