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Make erase follow preconditions

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This commit is contained in:
Krystian Stasiowski
2020-02-15 17:44:52 -05:00
parent 7f2da5d479
commit 1ca7253c14
3 changed files with 16 additions and 31 deletions
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36
include/boost/static_string/static_string.hpp
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@ -1863,8 +1863,11 @@ public:
*/
BOOST_STATIC_STRING_CPP14_CONSTEXPR
iterator
erase(
const_iterator pos);
erase(const_iterator pos)
{
BOOST_STATIC_STRING_ASSERT(!empty());
return erase(pos, pos + 1);
}
/** Removes the characters in the range `(first, last)`
@ -1892,7 +1895,7 @@ public:
void
pop_back() noexcept
{
BOOST_STATIC_STRING_ASSERT(size() > 0);
BOOST_STATIC_STRING_ASSERT(!empty());
this->set_size(size() - 1);
term();
}
@ -5043,27 +5046,12 @@ erase(
size_type count) ->
basic_static_string&
{
const auto curr_size = size();
const auto curr_data = data();
BOOST_STATIC_STRING_THROW_IF(
index > curr_size, std::out_of_range{"index > size()"});
count = (std::min)(count, curr_size - index);
traits_type::move(&curr_data[index], &curr_data[index + count], curr_size - (index + count) + 1);
this->set_size(curr_size - count);
index > size(), std::out_of_range{"index > size()"});
erase(data() + index, data() + index + (std::min)(count, size() - index));
return *this;
}
template<std::size_t N, typename CharT, typename Traits>
BOOST_STATIC_STRING_CPP14_CONSTEXPR
auto
basic_static_string<N, CharT, Traits>::
erase(const_iterator pos) ->
iterator
{
erase(pos - begin(), 1);
return begin() + (pos - begin());
}
template<std::size_t N, typename CharT, typename Traits>
BOOST_STATIC_STRING_CPP14_CONSTEXPR
auto
@ -5073,9 +5061,11 @@ erase(
const_iterator last) ->
iterator
{
erase(first - begin(),
detail::distance(first, last));
return begin() + (first - begin());
const auto curr_data = data();
const std::size_t index = first - curr_data;
traits_type::move(&curr_data[index], last, (end() - last) + 1);
this->set_size(size() - std::size_t(last - first));
return curr_data + index;
}
template<std::size_t N, typename CharT, typename Traits>