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Add unchecked assignment

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This commit is contained in:
Krystian Stasiowski
2020-02-21 19:21:48 -05:00
parent e7f8fc3bd8
commit 97a7e83368
1 changed files with 42 additions and 17 deletions
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59
include/boost/static_string/static_string.hpp
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@ -940,36 +940,40 @@ public:
Replace the contents with a copy of another `basic_static_string`
@throw std::length_error if `s.size() > max_size()`
@return `*this`
*/
template<std::size_t M
#ifndef GENERATING_DOCUMENTATION
, typename std::enable_if<(M < N)>::type* = nullptr
#endif
>
BOOST_STATIC_STRING_CPP14_CONSTEXPR
basic_static_string&
assign(const basic_static_string<M, CharT, Traits>& s)
{
return assign_unchecked(s.data(), s.size());
}
#ifndef GENERATING_DOCUMENTATION
BOOST_STATIC_STRING_CPP14_CONSTEXPR
basic_static_string&
assign(const basic_static_string& s) noexcept
{
if (this == &s)
return *this;
this->set_size(s.size());
traits_type::copy(data(), &s.data()[0], size() + 1);
return *this;
return assign_unchecked(s.data(), s.size());
}
/** Replace the contents.
Replace the contents with a copy of another `basic_static_string`
@throw std::length_error if `s.size() > max_size()`
@return `*this`
*/
template<std::size_t M>
template<std::size_t M,
typename std::enable_if<(M > N)>::type* = nullptr>
BOOST_STATIC_STRING_CPP14_CONSTEXPR
basic_static_string&
assign(const basic_static_string<M, CharT, Traits>& s)
{
// VFALCO this could come in two flavors,
// N > M and N < M, and skip the exception
// check when N > M
return assign(s.data(), s.size());
}
#endif
/** Replace the contents.
@ -4103,6 +4107,12 @@ private:
const_pointer s,
size_type count);
BOOST_STATIC_STRING_CPP14_CONSTEXPR
basic_static_string&
assign_unchecked(
const_pointer s,
size_type count) noexcept;
BOOST_STATIC_STRING_CPP14_CONSTEXPR
size_type
capped_length(
@ -4987,9 +4997,9 @@ basic_static_string<N, CharT, Traits>::
copy(pointer dest, size_type count, size_type pos) const ->
size_type
{
const auto s = subview(pos, count);
traits_type::copy(dest, s.data(), s.size());
return s.size();
const auto num_copied = capped_length(pos, count);
traits_type::copy(dest, data() + pos, num_copied);
return num_copied;
}
template<std::size_t N, typename CharT, typename Traits>
@ -5372,6 +5382,21 @@ insert_unchecked(
this->set_size(curr_size + count);
return curr_data + index;
}
template<std::size_t N, typename CharT, typename Traits>
BOOST_STATIC_STRING_CPP14_CONSTEXPR
auto
basic_static_string<N, CharT, Traits>::
assign_unchecked(
const_pointer s,
size_type count) noexcept ->
basic_static_string&
{
this->set_size(count);
traits_type::copy(data(), s, size() + 1);
return *this;
}
} // static_string
} // boost
#endif