* Improved vector's insertion performance.

*  Changed again experimental multiallocation interface for better performance (still experimental).
*  Added no exception support for those willing to disable exceptions in their compilers.
*  Fixed GCC -Wshadow warnings.
*  Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.


[SVN r81518]
This commit is contained in:
Ion Gaztañaga
2012-11-24 21:08:18 +00:00
parent a75d72d03c
commit bc5c91bb79
28 changed files with 2449 additions and 1892 deletions
+250 -263
View File
@@ -44,11 +44,13 @@
#include <boost/container/detail/version_type.hpp>
#include <boost/container/detail/allocation_type.hpp>
#include <boost/container/allocator_traits.hpp>
#include <boost/container/detail/allocator_version_traits.hpp>
#include <boost/container/detail/mpl.hpp>
#include <boost/move/move.hpp>
#include <boost/move/utility.hpp>
#include <boost/static_assert.hpp>
#include <boost/functional/hash.hpp>
#include <boost/intrusive/pointer_traits.hpp>
#include <boost/detail/no_exceptions_support.hpp>
#include <functional>
#include <string>
@@ -81,8 +83,8 @@ namespace container_detail {
// an exception-safe version of basic_string. The constructor allocates,
// but does not initialize, a block of memory. The destructor
// deallocates, but does not destroy elements within, a block of
// memory. The destructor assumes that the memory either is the internal buffer,
// or else points to a block of memory that was allocated using _String_base's
// memory. The destructor assumes that the memory either is the internal buffer,
// or else points to a block of memory that was allocated using string_base's
// allocator and whose size is this->m_storage.
template <class Allocator>
class basic_string_base
@@ -92,7 +94,6 @@ class basic_string_base
typedef allocator_traits<Allocator> allocator_traits_type;
public:
typedef Allocator allocator_type;
//! The stored allocator type
typedef allocator_type stored_allocator_type;
typedef typename allocator_traits_type::pointer pointer;
typedef typename allocator_traits_type::value_type value_type;
@@ -284,36 +285,8 @@ class basic_string_base
reuse = pointer();
command &= ~(expand_fwd | expand_bwd);
}
return this->allocation_command
(command, limit_size, preferred_size, received_size, reuse, alloc_version());
}
std::pair<pointer, bool>
allocation_command(allocation_type command,
size_type limit_size,
size_type preferred_size,
size_type &received_size,
const pointer &reuse,
allocator_v1)
{
(void)limit_size;
(void)reuse;
if(!(command & allocate_new))
return std::pair<pointer, bool>(pointer(), false);
received_size = preferred_size;
return std::make_pair(this->alloc().allocate(received_size), false);
}
std::pair<pointer, bool>
allocation_command(allocation_type command,
size_type limit_size,
size_type preferred_size,
size_type &received_size,
pointer reuse,
allocator_v2)
{
return this->alloc().allocation_command(command, limit_size, preferred_size,
received_size, reuse);
return container_detail::allocator_version_traits<Allocator>::allocation_command
(this->alloc(), command, limit_size, preferred_size, received_size, reuse);
}
size_type next_capacity(size_type additional_objects) const
@@ -336,11 +309,9 @@ class basic_string_base
void destroy(pointer p, size_type n)
{
for(; n--; ++p){
allocator_traits_type::destroy
( this->alloc()
, container_detail::to_raw_pointer(p)
);
value_type *raw_p = container_detail::to_raw_pointer(p);
for(; n--; ++raw_p){
allocator_traits_type::destroy( this->alloc(), raw_p);
}
}
@@ -569,37 +540,26 @@ class basic_string
/// @endcond
public:
//! The allocator type
typedef Allocator allocator_type;
//! The stored allocator type
typedef allocator_type stored_allocator_type;
//! The type of object, CharT, stored in the string
typedef CharT value_type;
//! The second template parameter Traits
typedef Traits traits_type;
//! Pointer to CharT
typedef typename allocator_traits_type::pointer pointer;
//! Const pointer to CharT
typedef typename allocator_traits_type::const_pointer const_pointer;
//! Reference to CharT
typedef typename allocator_traits_type::reference reference;
//! Const reference to CharT
typedef typename allocator_traits_type::const_reference const_reference;
//! An unsigned integral type
typedef typename allocator_traits_type::size_type size_type;
//! A signed integral type
typedef typename allocator_traits_type::difference_type difference_type;
//! Iterator used to iterate through a string. It's a Random Access Iterator
typedef pointer iterator;
//! Const iterator used to iterate through a string. It's a Random Access Iterator
typedef const_pointer const_iterator;
//! Iterator used to iterate backwards through a string
typedef std::reverse_iterator<iterator> reverse_iterator;
//! Const iterator used to iterate backwards through a string
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
//! The largest possible value of type size_type. That is, size_type(-1).
static const size_type npos;
//////////////////////////////////////////////
//
// types
//
//////////////////////////////////////////////
typedef Traits traits_type;
typedef CharT value_type;
typedef typename ::boost::container::allocator_traits<Allocator>::pointer pointer;
typedef typename ::boost::container::allocator_traits<Allocator>::const_pointer const_pointer;
typedef typename ::boost::container::allocator_traits<Allocator>::reference reference;
typedef typename ::boost::container::allocator_traits<Allocator>::const_reference const_reference;
typedef typename ::boost::container::allocator_traits<Allocator>::size_type size_type;
typedef typename ::boost::container::allocator_traits<Allocator>::difference_type difference_type;
typedef Allocator allocator_type;
typedef BOOST_CONTAINER_IMPDEF(allocator_type) stored_allocator_type;
typedef BOOST_CONTAINER_IMPDEF(pointer) iterator;
typedef BOOST_CONTAINER_IMPDEF(const_pointer) const_iterator;
typedef BOOST_CONTAINER_IMPDEF(std::reverse_iterator<iterator>) reverse_iterator;
typedef BOOST_CONTAINER_IMPDEF(std::reverse_iterator<const_iterator>) const_reverse_iterator;
static const size_type npos = size_type(-1);
/// @cond
private:
@@ -611,6 +571,11 @@ class basic_string
/// @endcond
public: // Constructor, destructor, assignment.
//////////////////////////////////////////////
//
// construct/copy/destroy
//
//////////////////////////////////////////////
/// @cond
struct reserve_t {};
@@ -634,8 +599,8 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter.
//!
//! <b>Throws</b>: If allocator_type's copy constructor throws.
explicit basic_string(const allocator_type& a)
//! <b>Throws</b>: Nothing
explicit basic_string(const allocator_type& a) BOOST_CONTAINER_NOEXCEPT
: base_t(a)
{ this->priv_terminate_string(); }
@@ -653,10 +618,10 @@ class basic_string
//! <b>Effects</b>: Move constructor. Moves s's resources to *this.
//!
//! <b>Throws</b>: If allocator_type's copy constructor throws.
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
basic_string(BOOST_RV_REF(basic_string) s)
basic_string(BOOST_RV_REF(basic_string) s) BOOST_CONTAINER_NOEXCEPT
: base_t(boost::move((base_t&)s))
{}
@@ -693,7 +658,7 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter,
//! and is initialized by a specific number of characters of the s string.
basic_string(const basic_string& s, size_type pos, size_type n = npos,
const allocator_type& a = allocator_type())
const allocator_type& a = allocator_type())
: base_t(a)
{
this->priv_terminate_string();
@@ -706,8 +671,7 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter,
//! and is initialized by a specific number of characters of the s c-string.
basic_string(const CharT* s, size_type n,
const allocator_type& a = allocator_type())
basic_string(const CharT* s, size_type n, const allocator_type& a = allocator_type())
: base_t(a)
{
this->priv_terminate_string();
@@ -716,8 +680,7 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter,
//! and is initialized by the null-terminated s c-string.
basic_string(const CharT* s,
const allocator_type& a = allocator_type())
basic_string(const CharT* s, const allocator_type& a = allocator_type())
: base_t(a)
{
this->priv_terminate_string();
@@ -726,8 +689,7 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter,
//! and is initialized by n copies of c.
basic_string(size_type n, CharT c,
const allocator_type& a = allocator_type())
basic_string(size_type n, CharT c, const allocator_type& a = allocator_type())
: base_t(a)
{
this->priv_terminate_string();
@@ -737,8 +699,7 @@ class basic_string
//! <b>Effects</b>: Constructs a basic_string taking the allocator as parameter,
//! and a range of iterators.
template <class InputIterator>
basic_string(InputIterator f, InputIterator l,
const allocator_type& a = allocator_type())
basic_string(InputIterator f, InputIterator l, const allocator_type& a = allocator_type())
: base_t(a)
{
this->priv_terminate_string();
@@ -750,7 +711,7 @@ class basic_string
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
~basic_string()
~basic_string() BOOST_CONTAINER_NOEXCEPT
{}
//! <b>Effects</b>: Copy constructs a string.
@@ -784,7 +745,7 @@ class basic_string
//! <b>Throws</b>: If allocator_type's copy constructor throws.
//!
//! <b>Complexity</b>: Constant.
basic_string& operator=(BOOST_RV_REF(basic_string) x)
basic_string& operator=(BOOST_RV_REF(basic_string) x) BOOST_CONTAINER_NOEXCEPT
{
if (&x != this){
allocator_type &this_alloc = this->alloc();
@@ -815,114 +776,12 @@ class basic_string
basic_string& operator=(CharT c)
{ return this->assign(static_cast<size_type>(1), c); }
//! <b>Effects</b>: Returns an iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator begin()
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator begin() const
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbegin() const
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns an iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator end()
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator end() const
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cend() const
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rbegin()
{ return reverse_iterator(this->priv_end_addr()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rbegin() const
{ return this->crbegin(); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crbegin() const
{ return const_reverse_iterator(this->priv_end_addr()); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rend()
{ return reverse_iterator(this->priv_addr()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rend() const
{ return this->crend(); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crend() const
{ return const_reverse_iterator(this->priv_addr()); }
//! <b>Effects</b>: Returns a copy of the internal allocator.
//!
//! <b>Throws</b>: If allocator's copy constructor throws.
//!
//! <b>Complexity</b>: Constant.
allocator_type get_allocator() const
allocator_type get_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return this->alloc(); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
@@ -945,12 +804,134 @@ class basic_string
const stored_allocator_type &get_stored_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return this->alloc(); }
//////////////////////////////////////////////
//
// iterators
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns an iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator begin() BOOST_CONTAINER_NOEXCEPT
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator begin() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns an iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator end() BOOST_CONTAINER_NOEXCEPT
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator end() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rbegin() BOOST_CONTAINER_NOEXCEPT
{ return reverse_iterator(this->priv_end_addr()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rbegin() const BOOST_CONTAINER_NOEXCEPT
{ return this->crbegin(); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rend() BOOST_CONTAINER_NOEXCEPT
{ return reverse_iterator(this->priv_addr()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rend() const BOOST_CONTAINER_NOEXCEPT
{ return this->crend(); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbegin() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_addr(); }
//! <b>Effects</b>: Returns a const_iterator to the end of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cend() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_end_addr(); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crbegin() const BOOST_CONTAINER_NOEXCEPT
{ return const_reverse_iterator(this->priv_end_addr()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crend() const BOOST_CONTAINER_NOEXCEPT
{ return const_reverse_iterator(this->priv_addr()); }
//////////////////////////////////////////////
//
// capacity
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns true if the vector contains no elements.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
bool empty() const BOOST_CONTAINER_NOEXCEPT
{ return !this->priv_size(); }
//! <b>Effects</b>: Returns the number of the elements contained in the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type size() const
size_type size() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_size(); }
//! <b>Effects</b>: Returns the number of the elements contained in the vector.
@@ -958,7 +939,7 @@ class basic_string
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type length() const
size_type length() const BOOST_CONTAINER_NOEXCEPT
{ return this->size(); }
//! <b>Effects</b>: Returns the largest possible size of the vector.
@@ -966,7 +947,7 @@ class basic_string
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type max_size() const
size_type max_size() const BOOST_CONTAINER_NOEXCEPT
{ return base_t::max_size(); }
//! <b>Effects</b>: Inserts or erases elements at the end such that
@@ -990,7 +971,16 @@ class basic_string
//!
//! <b>Complexity</b>: Linear to the difference between size() and new_size.
void resize(size_type n)
{ resize(n, CharT(0)); }
{ resize(n, CharT()); }
//! <b>Effects</b>: Number of elements for which memory has been allocated.
//! capacity() is always greater than or equal to size().
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type capacity() const BOOST_CONTAINER_NOEXCEPT
{ return this->priv_capacity(); }
//! <b>Effects</b>: If n is less than or equal to capacity(), this call has no
//! effect. Otherwise, it is a request for allocation of additional memory.
@@ -1023,28 +1013,6 @@ class basic_string
}
}
//! <b>Effects</b>: Number of elements for which memory has been allocated.
//! capacity() is always greater than or equal to size().
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type capacity() const
{ return this->priv_capacity(); }
//! <b>Effects</b>: Erases all the elements of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements in the vector.
void clear()
{
if (!this->empty()) {
Traits::assign(*this->priv_addr(), CharT(0));
this->priv_size(0);
}
}
//! <b>Effects</b>: Tries to deallocate the excess of memory created
//! with previous allocations. The size of the string is unchanged
//!
@@ -1076,13 +1044,11 @@ class basic_string
}
}
//! <b>Effects</b>: Returns true if the vector contains no elements.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
bool empty() const
{ return !this->priv_size(); }
//////////////////////////////////////////////
//
// element access
//
//////////////////////////////////////////////
//! <b>Requires</b>: size() > n.
//!
@@ -1092,7 +1058,7 @@ class basic_string
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reference operator[](size_type n)
reference operator[](size_type n) BOOST_CONTAINER_NOEXCEPT
{ return *(this->priv_addr() + n); }
//! <b>Requires</b>: size() > n.
@@ -1103,7 +1069,7 @@ class basic_string
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reference operator[](size_type n) const
const_reference operator[](size_type n) const BOOST_CONTAINER_NOEXCEPT
{ return *(this->priv_addr() + n); }
//! <b>Requires</b>: size() > n.
@@ -1135,6 +1101,12 @@ class basic_string
return *(this->priv_addr() + n);
}
//////////////////////////////////////////////
//
// modifiers
//
//////////////////////////////////////////////
//! <b>Effects</b>: Calls append(str.data, str.size()).
//!
//! <b>Returns</b>: *this
@@ -1240,7 +1212,7 @@ class basic_string
//! <b>Throws</b>: Nothing
//!
//! <b>Returns</b>: *this
basic_string& assign(BOOST_RV_REF(basic_string) ms)
basic_string& assign(BOOST_RV_REF(basic_string) ms) BOOST_CONTAINER_NOEXCEPT
{ return this->swap_data(ms), *this; }
//! <b>Requires</b>: pos <= str.size()
@@ -1322,10 +1294,10 @@ class basic_string
//! <b>Returns</b>: *this
basic_string& insert(size_type pos, const basic_string& s)
{
const size_type size_ = this->size();
if (pos > size_)
const size_type sz = this->size();
if (pos > sz)
this->throw_out_of_range();
if (size_ > this->max_size() - s.size())
if (sz > this->max_size() - s.size())
this->throw_length_error();
this->insert(this->priv_addr() + pos, s.begin(), s.end());
return *this;
@@ -1341,12 +1313,12 @@ class basic_string
//! <b>Returns</b>: *this
basic_string& insert(size_type pos1, const basic_string& s, size_type pos2, size_type n)
{
const size_type size_ = this->size();
const size_type sz = this->size();
const size_type str_size = s.size();
if (pos1 > size_ || pos2 > str_size)
if (pos1 > sz || pos2 > str_size)
this->throw_out_of_range();
size_type len = container_detail::min_value(n, str_size - pos2);
if (size_ > this->max_size() - len)
if (sz > this->max_size() - len)
this->throw_length_error();
const CharT *beg_ptr = container_detail::to_raw_pointer(s.begin()) + pos2;
const CharT *end_ptr = beg_ptr + len;
@@ -1591,7 +1563,7 @@ class basic_string
//!
//! <b>Returns</b>: An iterator which points to the element immediately following p prior to the element being
//! erased. If no such element exists, end() is returned.
iterator erase(const_iterator p)
iterator erase(const_iterator p) BOOST_CONTAINER_NOEXCEPT
{
// The move includes the terminating null.
CharT * const ptr = const_cast<CharT*>(container_detail::to_raw_pointer(p));
@@ -1611,7 +1583,7 @@ class basic_string
//!
//! <b>Returns</b>: An iterator which points to the element pointed to by last prior to
//! the other elements being erased. If no such element exists, end() is returned.
iterator erase(const_iterator first, const_iterator last)
iterator erase(const_iterator first, const_iterator last) BOOST_CONTAINER_NOEXCEPT
{
CharT * f = const_cast<CharT*>(container_detail::to_raw_pointer(first));
if (first != last) { // The move includes the terminating null.
@@ -1631,13 +1603,26 @@ class basic_string
//! <b>Throws</b>: Nothing
//!
//! <b>Effects</b>: Equivalent to erase(size() - 1, 1).
void pop_back()
void pop_back() BOOST_CONTAINER_NOEXCEPT
{
const size_type old_size = this->priv_size();
Traits::assign(this->priv_addr()[old_size-1], CharT(0));
this->priv_size(old_size-1);;
}
//! <b>Effects</b>: Erases all the elements of the vector.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements in the vector.
void clear() BOOST_CONTAINER_NOEXCEPT
{
if (!this->empty()) {
Traits::assign(*this->priv_addr(), CharT(0));
this->priv_size(0);
}
}
//! <b>Requires</b>: pos1 <= size().
//!
//! <b>Effects</b>: Calls replace(pos1, n1, str.data(), str.size()).
@@ -1890,12 +1875,18 @@ class basic_string
container_detail::swap_alloc(this->alloc(), x.alloc(), flag);
}
//////////////////////////////////////////////
//
// data access
//
//////////////////////////////////////////////
//! <b>Requires</b>: The program shall not alter any of the values stored in the character array.
//!
//! <b>Returns</b>: Allocator pointer p such that p + i == &operator[](i) for each i in [0,size()].
//!
//! <b>Complexity</b>: constant time.
const CharT* c_str() const
const CharT* c_str() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::to_raw_pointer(this->priv_addr()); }
//! <b>Requires</b>: The program shall not alter any of the values stored in the character array.
@@ -1903,9 +1894,15 @@ class basic_string
//! <b>Returns</b>: Allocator pointer p such that p + i == &operator[](i) for each i in [0,size()].
//!
//! <b>Complexity</b>: constant time.
const CharT* data() const
const CharT* data() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::to_raw_pointer(this->priv_addr()); }
//////////////////////////////////////////////
//
// string operations
//
//////////////////////////////////////////////
//! <b>Effects</b>: Determines the lowest position xpos, if possible, such that both
//! of the following conditions obtain: 19 pos <= xpos and xpos + str.size() <= size();
//! 2) traits::eq(at(xpos+I), str.at(I)) for all elements I of the string controlled by str.
@@ -1949,12 +1946,12 @@ class basic_string
//! <b>Returns</b>: find(basic_string<CharT,traits,Allocator>(1,c), pos).
size_type find(CharT c, size_type pos = 0) const
{
const size_type size_ = this->size();
if (pos >= size_)
const size_type sz = this->size();
if (pos >= sz)
return npos;
else {
const pointer addr = this->priv_addr();
pointer finish = addr + size_;
const pointer addr = this->priv_addr();
pointer finish = addr + sz;
const const_iterator result =
std::find_if(addr + pos, finish,
std::bind2nd(Eq_traits<Traits>(), c));
@@ -2039,12 +2036,12 @@ class basic_string
//! <b>Returns</b>: find_first_of(basic_string(s, n), pos).
size_type find_first_of(const CharT* s, size_type pos, size_type n) const
{
const size_type size_ = this->size();
if (pos >= size_)
const size_type sz = this->size();
if (pos >= sz)
return npos;
else {
const pointer addr = this->priv_addr();
pointer finish = addr + size_;
const pointer addr = this->priv_addr();
pointer finish = addr + sz;
const_iterator result = std::find_first_of
(addr + pos, finish, s, s + n, Eq_traits<Traits>());
return result != finish ? result - this->begin() : npos;
@@ -2282,8 +2279,8 @@ class basic_string
//! <b>Throws</b>: out_of_range if pos1 > size() or pos2 > str.size()
//!
//! <b>Returns</b>: basic_string(*this, pos1, n1).compare(basic_string(str, pos2, n2)).
int compare(size_type pos1, size_type n1,
const basic_string& str, size_type pos2, size_type n2) const {
int compare(size_type pos1, size_type n1, const basic_string& str, size_type pos2, size_type n2) const
{
if (pos1 > this->size() || pos2 > str.size())
this->throw_out_of_range();
const pointer addr = this->priv_addr();
@@ -2309,8 +2306,7 @@ class basic_string
//! <b>Throws</b>: out_of_range if pos1 > size()
//!
//! <b>Returns</b>: basic_string(*this, pos, n1).compare(basic_string(s, n2)).
int compare(size_type pos1, size_type n1,
const CharT* s, size_type n2) const
int compare(size_type pos1, size_type n1, const CharT* s, size_type n2) const
{
if (pos1 > this->size())
this->throw_out_of_range();
@@ -2352,7 +2348,7 @@ class basic_string
const size_type long_size = this->priv_long_size();
const size_type long_storage = this->priv_long_storage();
//We can make this nothrow as chars are always NoThrowCopyables
try{
BOOST_TRY{
const std::pair<pointer, bool> ret = this->allocation_command
(allocate_new, long_size+1, long_size+1, real_cap, long_addr);
//Copy and update
@@ -2364,9 +2360,10 @@ class basic_string
//And release old buffer
this->alloc().deallocate(long_addr, long_storage);
}
catch(...){
BOOST_CATCH(...){
return;
}
BOOST_CATCH_END
}
template<class AllocVersion>
@@ -2481,15 +2478,6 @@ typedef basic_string
,std::allocator<wchar_t> >
wstring;
/// @cond
template <class CharT, class Traits, class Allocator>
const typename basic_string<CharT,Traits,Allocator>::size_type
basic_string<CharT,Traits,Allocator>::npos
= (typename basic_string<CharT,Traits,Allocator>::size_type) -1;
/// @endcond
// ------------------------------------------------------------
// Non-member functions.
@@ -2857,15 +2845,14 @@ inline std::size_t hash_value(basic_string<Ch, std::char_traits<Ch>, Allocator>
/// @cond
namespace boost {
/*
//!has_trivial_destructor_after_move<> == true_type
//!specialization for optimizations
template <class C, class T, class Allocator>
struct has_trivial_destructor_after_move<boost::container::basic_string<C, T, Allocator> >
{
static const bool value = has_trivial_destructor<Allocator>::value;
};
*/
: public ::boost::has_trivial_destructor_after_move<Allocator>
{};
}
/// @endcond