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[v3] More noexcept -- 4th
- From: Marc Glisse <marc dot glisse at inria dot fr>
- To: libstdc++ at gcc dot gnu dot org
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 19 Sep 2013 05:46:51 +0200 (CEST)
- Subject: [v3] More noexcept -- 4th
- Authentication-results: sourceware.org; auth=none
- Reply-to: libstdc++ at gcc dot gnu dot org
Hello,
I did not touch the regular basic_string because Paulo usually says not to
touch it, but I could do it as well if wanted. I didn't add noexcept to
the debug string swap (and move assignments) because the regular
basic_string swap can currently throw if the allocators are distinct.
bootstrap+testsuite ok.
2013-09-19 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/58338
* include/bits/stl_tree.h (_Rb_tree_node_base) [_S_minimum, _S_maximum]:
Mark as noexcept.
(_Rb_tree_iterator) [_Rb_tree_iterator, operator*, operator->,
operator++, operator--, operator==, operator!=]: Likewise.
(_Rb_tree_const_iterator) [_Rb_tree_const_iterator, _M_const_cast,
operator*, operator->, operator++, operator--, operator==, operator!=]:
Likewise.
(operator==(const _Rb_tree_iterator&, const _Rb_tree_const_iterator&),
operator!=(const _Rb_tree_iterator&, const _Rb_tree_const_iterator&)):
Likewise.
(_Rb_tree) [_M_put_node, _M_destroy_node, _M_root, _M_leftmost,
_M_rightmost, _M_begin, _M_end, _S_left, _S_right, _S_minimum,
_S_maximum]: Likewise.
* include/debug/string (basic_string) [basic_string(const _Allocator&),
shrink_to_fit, operator[], pop_back]: Likewise.
* include/ext/vstring.h (__versa_string) [_M_limit, _M_disjunct,
_M_ibegin, _M_iend, __versa_string(const _Alloc&),
operator=(__versa_string&&), shrink_to_fit, operator[], front,
back, assign(__versa_string&&), swap]: Likewise.
(__versa_string) [__versa_string(), __versa_string(const _Alloc&)]:
Merge.
--
Marc Glisse
Index: include/bits/stl_tree.h
===================================================================
--- include/bits/stl_tree.h (revision 202722)
+++ include/bits/stl_tree.h (working copy)
@@ -92,42 +92,42 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
typedef _Rb_tree_node_base* _Base_ptr;
typedef const _Rb_tree_node_base* _Const_Base_ptr;
_Rb_tree_color _M_color;
_Base_ptr _M_parent;
_Base_ptr _M_left;
_Base_ptr _M_right;
static _Base_ptr
- _S_minimum(_Base_ptr __x)
+ _S_minimum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_left != 0) __x = __x->_M_left;
return __x;
}
static _Const_Base_ptr
- _S_minimum(_Const_Base_ptr __x)
+ _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_left != 0) __x = __x->_M_left;
return __x;
}
static _Base_ptr
- _S_maximum(_Base_ptr __x)
+ _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_right != 0) __x = __x->_M_right;
return __x;
}
static _Const_Base_ptr
- _S_maximum(_Const_Base_ptr __x)
+ _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_right != 0) __x = __x->_M_right;
return __x;
}
};
template<typename _Val>
struct _Rb_tree_node : public _Rb_tree_node_base
{
typedef _Rb_tree_node<_Val>* _Link_type;
@@ -160,72 +160,72 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typedef _Tp& reference;
typedef _Tp* pointer;
typedef bidirectional_iterator_tag iterator_category;
typedef ptrdiff_t difference_type;
typedef _Rb_tree_iterator<_Tp> _Self;
typedef _Rb_tree_node_base::_Base_ptr _Base_ptr;
typedef _Rb_tree_node<_Tp>* _Link_type;
- _Rb_tree_iterator()
+ _Rb_tree_iterator() _GLIBCXX_NOEXCEPT
: _M_node() { }
explicit
- _Rb_tree_iterator(_Link_type __x)
+ _Rb_tree_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
: _M_node(__x) { }
reference
- operator*() const
+ operator*() const _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(_M_node)->_M_value_field; }
pointer
- operator->() const
+ operator->() const _GLIBCXX_NOEXCEPT
{ return std::__addressof(static_cast<_Link_type>
(_M_node)->_M_value_field); }
_Self&
- operator++()
+ operator++() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_increment(_M_node);
return *this;
}
_Self
- operator++(int)
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
return __tmp;
}
_Self&
- operator--()
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
_Self
- operator--(int)
+ operator--(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_decrement(_M_node);
return __tmp;
}
bool
- operator==(const _Self& __x) const
+ operator==(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node == __x._M_node; }
bool
- operator!=(const _Self& __x) const
+ operator!=(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node != __x._M_node; }
_Base_ptr _M_node;
};
template<typename _Tp>
struct _Rb_tree_const_iterator
{
typedef _Tp value_type;
typedef const _Tp& reference;
@@ -233,95 +233,95 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typedef _Rb_tree_iterator<_Tp> iterator;
typedef bidirectional_iterator_tag iterator_category;
typedef ptrdiff_t difference_type;
typedef _Rb_tree_const_iterator<_Tp> _Self;
typedef _Rb_tree_node_base::_Const_Base_ptr _Base_ptr;
typedef const _Rb_tree_node<_Tp>* _Link_type;
- _Rb_tree_const_iterator()
+ _Rb_tree_const_iterator() _GLIBCXX_NOEXCEPT
: _M_node() { }
explicit
- _Rb_tree_const_iterator(_Link_type __x)
+ _Rb_tree_const_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
: _M_node(__x) { }
- _Rb_tree_const_iterator(const iterator& __it)
+ _Rb_tree_const_iterator(const iterator& __it) _GLIBCXX_NOEXCEPT
: _M_node(__it._M_node) { }
iterator
- _M_const_cast() const
+ _M_const_cast() const _GLIBCXX_NOEXCEPT
{ return iterator(static_cast<typename iterator::_Link_type>
(const_cast<typename iterator::_Base_ptr>(_M_node))); }
reference
- operator*() const
+ operator*() const _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(_M_node)->_M_value_field; }
pointer
- operator->() const
+ operator->() const _GLIBCXX_NOEXCEPT
{ return std::__addressof(static_cast<_Link_type>
(_M_node)->_M_value_field); }
_Self&
- operator++()
+ operator++() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_increment(_M_node);
return *this;
}
_Self
- operator++(int)
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
return __tmp;
}
_Self&
- operator--()
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
_Self
- operator--(int)
+ operator--(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_decrement(_M_node);
return __tmp;
}
bool
- operator==(const _Self& __x) const
+ operator==(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node == __x._M_node; }
bool
- operator!=(const _Self& __x) const
+ operator!=(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node != __x._M_node; }
_Base_ptr _M_node;
};
template<typename _Val>
inline bool
operator==(const _Rb_tree_iterator<_Val>& __x,
- const _Rb_tree_const_iterator<_Val>& __y)
+ const _Rb_tree_const_iterator<_Val>& __y) _GLIBCXX_NOEXCEPT
{ return __x._M_node == __y._M_node; }
template<typename _Val>
inline bool
operator!=(const _Rb_tree_iterator<_Val>& __x,
- const _Rb_tree_const_iterator<_Val>& __y)
+ const _Rb_tree_const_iterator<_Val>& __y) _GLIBCXX_NOEXCEPT
{ return __x._M_node != __y._M_node; }
void
_Rb_tree_insert_and_rebalance(const bool __insert_left,
_Rb_tree_node_base* __x,
_Rb_tree_node_base* __p,
_Rb_tree_node_base& __header) throw ();
_Rb_tree_node_base*
_Rb_tree_rebalance_for_erase(_Rb_tree_node_base* const __z,
@@ -363,21 +363,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
allocator_type
get_allocator() const _GLIBCXX_NOEXCEPT
{ return allocator_type(_M_get_Node_allocator()); }
protected:
_Link_type
_M_get_node()
{ return _M_impl._Node_allocator::allocate(1); }
void
- _M_put_node(_Link_type __p)
+ _M_put_node(_Link_type __p) _GLIBCXX_NOEXCEPT
{ _M_impl._Node_allocator::deallocate(__p, 1); }
#if __cplusplus < 201103L
_Link_type
_M_create_node(const value_type& __x)
{
_Link_type __tmp = _M_get_node();
__try
{ get_allocator().construct
(std::__addressof(__tmp->_M_value_field), __x); }
@@ -409,21 +409,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
__catch(...)
{
_M_put_node(__tmp);
__throw_exception_again;
}
return __tmp;
}
void
- _M_destroy_node(_Link_type __p)
+ _M_destroy_node(_Link_type __p) noexcept
{
_M_get_Node_allocator().destroy(__p);
_M_put_node(__p);
}
#endif
_Link_type
_M_clone_node(_Const_Link_type __x)
{
_Link_type __tmp = _M_create_node(__x->_M_value_field);
@@ -467,108 +467,108 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
this->_M_header._M_parent = 0;
this->_M_header._M_left = &this->_M_header;
this->_M_header._M_right = &this->_M_header;
}
};
_Rb_tree_impl<_Compare> _M_impl;
protected:
_Base_ptr&
- _M_root()
+ _M_root() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_parent; }
_Const_Base_ptr
- _M_root() const
+ _M_root() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_parent; }
_Base_ptr&
- _M_leftmost()
+ _M_leftmost() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_left; }
_Const_Base_ptr
- _M_leftmost() const
+ _M_leftmost() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_left; }
_Base_ptr&
- _M_rightmost()
+ _M_rightmost() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_right; }
_Const_Base_ptr
- _M_rightmost() const
+ _M_rightmost() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_right; }
_Link_type
- _M_begin()
+ _M_begin() _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(this->_M_impl._M_header._M_parent); }
_Const_Link_type
- _M_begin() const
+ _M_begin() const _GLIBCXX_NOEXCEPT
{
return static_cast<_Const_Link_type>
(this->_M_impl._M_header._M_parent);
}
_Link_type
- _M_end()
+ _M_end() _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(&this->_M_impl._M_header); }
_Const_Link_type
- _M_end() const
+ _M_end() const _GLIBCXX_NOEXCEPT
{ return static_cast<_Const_Link_type>(&this->_M_impl._M_header); }
static const_reference
_S_value(_Const_Link_type __x)
{ return __x->_M_value_field; }
static const _Key&
_S_key(_Const_Link_type __x)
{ return _KeyOfValue()(_S_value(__x)); }
static _Link_type
- _S_left(_Base_ptr __x)
+ _S_left(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(__x->_M_left); }
static _Const_Link_type
- _S_left(_Const_Base_ptr __x)
+ _S_left(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return static_cast<_Const_Link_type>(__x->_M_left); }
static _Link_type
- _S_right(_Base_ptr __x)
+ _S_right(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(__x->_M_right); }
static _Const_Link_type
- _S_right(_Const_Base_ptr __x)
+ _S_right(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return static_cast<_Const_Link_type>(__x->_M_right); }
static const_reference
_S_value(_Const_Base_ptr __x)
{ return static_cast<_Const_Link_type>(__x)->_M_value_field; }
static const _Key&
_S_key(_Const_Base_ptr __x)
{ return _KeyOfValue()(_S_value(__x)); }
static _Base_ptr
- _S_minimum(_Base_ptr __x)
+ _S_minimum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_minimum(__x); }
static _Const_Base_ptr
- _S_minimum(_Const_Base_ptr __x)
+ _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_minimum(__x); }
static _Base_ptr
- _S_maximum(_Base_ptr __x)
+ _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_maximum(__x); }
static _Const_Base_ptr
- _S_maximum(_Const_Base_ptr __x)
+ _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_maximum(__x); }
public:
typedef _Rb_tree_iterator<value_type> iterator;
typedef _Rb_tree_const_iterator<value_type> const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
private:
Index: include/debug/string
===================================================================
--- include/debug/string (revision 202722)
+++ include/debug/string (working copy)
@@ -63,20 +63,21 @@ namespace __gnu_debug
typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
basic_string> const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
using _Base::npos;
// 21.3.1 construct/copy/destroy:
explicit basic_string(const _Allocator& __a = _Allocator())
+ _GLIBCXX_NOEXCEPT
: _Base(__a)
{ }
// Provides conversion from a release-mode string to a debug-mode string
basic_string(const _Base& __base) : _Base(__base) { }
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 42. string ctors specify wrong default allocator
basic_string(const basic_string& __str)
: _Base(__str, 0, _Base::npos, __str.get_allocator())
@@ -231,21 +232,21 @@ namespace __gnu_debug
_Base::resize(__n, __c);
this->_M_invalidate_all();
}
void
resize(size_type __n)
{ this->resize(__n, _CharT()); }
#if __cplusplus >= 201103L
void
- shrink_to_fit()
+ shrink_to_fit() noexcept
{
if (capacity() > size())
{
__try
{
reserve(0);
this->_M_invalidate_all();
}
__catch(...)
{ }
@@ -260,32 +261,32 @@ namespace __gnu_debug
clear() _GLIBCXX_NOEXCEPT
{
_Base::clear();
this->_M_invalidate_all();
}
using _Base::empty;
// 21.3.4 element access:
const_reference
- operator[](size_type __pos) const
+ operator[](size_type __pos) const _GLIBCXX_NOEXCEPT
{
_GLIBCXX_DEBUG_VERIFY(__pos <= this->size(),
_M_message(__gnu_debug::__msg_subscript_oob)
._M_sequence(*this, "this")
._M_integer(__pos, "__pos")
._M_integer(this->size(), "size"));
return _M_base()[__pos];
}
reference
- operator[](size_type __pos)
+ operator[](size_type __pos) _GLIBCXX_NOEXCEPT
{
#ifdef _GLIBCXX_DEBUG_PEDANTIC
__glibcxx_check_subscript(__pos);
#else
// as an extension v3 allows s[s.size()] when s is non-const.
_GLIBCXX_DEBUG_VERIFY(__pos <= this->size(),
_M_message(__gnu_debug::__msg_subscript_oob)
._M_sequence(*this, "this")
._M_integer(__pos, "__pos")
._M_integer(this->size(), "size"));
@@ -575,21 +576,21 @@ namespace __gnu_debug
// 151. can't currently clear() empty container
__glibcxx_check_erase_range(__first, __last);
typename _Base::iterator __res = _Base::erase(__first.base(),
__last.base());
this->_M_invalidate_all();
return iterator(__res, this);
}
#if __cplusplus >= 201103L
void
- pop_back()
+ pop_back() noexcept
{
__glibcxx_check_nonempty();
_Base::pop_back();
this->_M_invalidate_all();
}
#endif // C++11
basic_string&
replace(size_type __pos1, size_type __n1, const basic_string& __str)
{
Index: include/ext/vstring.h
===================================================================
--- include/ext/vstring.h (revision 202722)
+++ include/ext/vstring.h (working copy)
@@ -91,61 +91,55 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
void
_M_check_length(size_type __n1, size_type __n2, const char* __s) const
{
if (this->max_size() - (this->size() - __n1) < __n2)
std::__throw_length_error(__N(__s));
}
// NB: _M_limit doesn't check for a bad __pos value.
size_type
- _M_limit(size_type __pos, size_type __off) const
+ _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT
{
const bool __testoff = __off < this->size() - __pos;
return __testoff ? __off : this->size() - __pos;
}
// True if _Rep and source do not overlap.
bool
- _M_disjunct(const _CharT* __s) const
+ _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT
{
return (std::less<const _CharT*>()(__s, this->_M_data())
|| std::less<const _CharT*>()(this->_M_data()
+ this->size(), __s));
}
// For the internal use we have functions similar to `begin'/`end'
// but they do not call _M_leak.
iterator
- _M_ibegin() const
+ _M_ibegin() const _GLIBCXX_NOEXCEPT
{ return iterator(this->_M_data()); }
iterator
- _M_iend() const
+ _M_iend() const _GLIBCXX_NOEXCEPT
{ return iterator(this->_M_data() + this->_M_length()); }
public:
// Construct/copy/destroy:
// NB: We overload ctors in some cases instead of using default
// arguments, per 17.4.4.4 para. 2 item 2.
/**
- * @brief Default constructor creates an empty string.
- */
- __versa_string()
- : __vstring_base() { }
-
- /**
* @brief Construct an empty string using allocator @a a.
*/
explicit
- __versa_string(const _Alloc& __a)
+ __versa_string(const _Alloc& __a = _Alloc()) _GLIBCXX_NOEXCEPT
: __vstring_base(__a) { }
// NB: per LWG issue 42, semantics different from IS:
/**
* @brief Construct string with copy of value of @a __str.
* @param __str Source string.
*/
__versa_string(const __versa_string& __str)
: __vstring_base(__str) { }
@@ -262,21 +256,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#if __cplusplus >= 201103L
/**
* @brief String move assignment operator.
* @param __str Source string.
*
* The contents of @a __str are moved into this string (without
* copying). @a __str is a valid, but unspecified string.
*/
__versa_string&
- operator=(__versa_string&& __str)
+ operator=(__versa_string&& __str) noexcept
{
// NB: DR 1204.
this->swap(__str);
return *this;
}
/**
* @brief Set value to string constructed from initializer list.
* @param __l std::initializer_list.
*/
@@ -463,21 +457,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* is extended and new characters are default-constructed. For
* basic types such as char, this means setting them to 0.
*/
void
resize(size_type __n)
{ this->resize(__n, _CharT()); }
#if __cplusplus >= 201103L
/// A non-binding request to reduce capacity() to size().
void
- shrink_to_fit()
+ shrink_to_fit() noexcept
{
if (capacity() > size())
{
__try
{ this->reserve(0); }
__catch(...)
{ }
}
}
#endif
@@ -531,38 +525,38 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* @brief Subscript access to the data contained in the %string.
* @param __pos The index of the character to access.
* @return Read-only (constant) reference to the character.
*
* This operator allows for easy, array-style, data access.
* Note that data access with this operator is unchecked and
* out_of_range lookups are not defined. (For checked lookups
* see at().)
*/
const_reference
- operator[] (size_type __pos) const
+ operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT
{
_GLIBCXX_DEBUG_ASSERT(__pos <= this->size());
return this->_M_data()[__pos];
}
/**
* @brief Subscript access to the data contained in the %string.
* @param __pos The index of the character to access.
* @return Read/write reference to the character.
*
* This operator allows for easy, array-style, data access.
* Note that data access with this operator is unchecked and
* out_of_range lookups are not defined. (For checked lookups
* see at().) Unshares the string.
*/
reference
- operator[](size_type __pos)
+ operator[](size_type __pos) _GLIBCXX_NOEXCEPT
{
// Allow pos == size() both in C++98 mode, as v3 extension,
// and in C++11 mode.
_GLIBCXX_DEBUG_ASSERT(__pos <= this->size());
// In pedantic mode be strict in C++98 mode.
_GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L
|| __pos < this->size());
this->_M_leak();
return this->_M_data()[__pos];
}
@@ -604,45 +598,45 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
this->_M_leak();
return this->_M_data()[__n];
}
#if __cplusplus >= 201103L
/**
* Returns a read/write reference to the data at the first
* element of the %string.
*/
reference
- front()
+ front() _GLIBCXX_NOEXCEPT
{ return operator[](0); }
/**
* Returns a read-only (constant) reference to the data at the first
* element of the %string.
*/
const_reference
- front() const
+ front() const _GLIBCXX_NOEXCEPT
{ return operator[](0); }
/**
* Returns a read/write reference to the data at the last
* element of the %string.
*/
reference
- back()
+ back() _GLIBCXX_NOEXCEPT
{ return operator[](this->size() - 1); }
/**
* Returns a read-only (constant) reference to the data at the
* last element of the %string.
*/
const_reference
- back() const
+ back() const _GLIBCXX_NOEXCEPT
{ return operator[](this->size() - 1); }
#endif
// Modifiers:
/**
* @brief Append a string to this string.
* @param __str The string to append.
* @return Reference to this string.
*/
__versa_string&
@@ -807,21 +801,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#if __cplusplus >= 201103L
/**
* @brief Set value to contents of another string.
* @param __str Source string to use.
* @return Reference to this string.
*
* This function sets this string to the exact contents of @a __str.
* @a __str is a valid, but unspecified string.
*/
__versa_string&
- assign(__versa_string&& __str)
+ assign(__versa_string&& __str) noexcept
{
this->swap(__str);
return *this;
}
#endif // C++11
/**
* @brief Set value to a substring of a string.
* @param __str The string to use.
* @param __pos Index of the first character of str.
@@ -1624,21 +1618,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
copy(_CharT* __s, size_type __n, size_type __pos = 0) const;
/**
* @brief Swap contents with another string.
* @param __s String to swap with.
*
* Exchanges the contents of this string with that of @a __s in
* constant time.
*/
void
- swap(__versa_string& __s)
+ swap(__versa_string& __s) _GLIBCXX_NOEXCEPT
{ this->_M_swap(__s); }
// String operations:
/**
* @brief Return const pointer to null-terminated contents.
*
* This is a handle to internal data. Do not modify or dire things may
* happen.
*/
const _CharT*