libstdc++
std::sub_match< _BiIter > Class Template Reference
Inheritance diagram for std::sub_match< _BiIter >:
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Public Types

typedef __iter_traits::difference_type difference_type
 
typedef _BiIter first_type
 
typedef _BiIter iterator
 
typedef _BiIter second_type
 
typedef basic_string< value_type > string_type
 
typedef __iter_traits::value_type value_type
 

Public Member Functions

int compare (const sub_match &__s) const
 
difference_type length () const noexcept
 
 operator string_type () const
 
string_type str () const
 
constexpr void swap (pair &__p) noexcept(__and_< __is_nothrow_swappable< _BiIter >, __is_nothrow_swappable< _BiIter >>::value)
 
int compare (const string_type &__s) const
 
int compare (const value_type *__s) const
 

Public Attributes

_BiIter first
 
bool matched
 
_BiIter second
 

Related Functions

(Note that these are not member functions.)

constexpr pair< typename __decay_and_strip< _BiIter >::__type, typename __decay_and_strip< _BiIter >::__type > make_pair (_BiIter &&__x, _BiIter &&__y)
 
template<typename _BiIter >
bool operator== (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _BiIter >
bool operator!= (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _BiIter >
bool operator< (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _BiIter >
bool operator<= (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _BiIter >
bool operator>= (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _BiIter >
bool operator> (const sub_match< _BiIter > &__lhs, const sub_match< _BiIter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator== (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator!= (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator< (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator> (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator>= (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator<= (const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator== (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator!= (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator< (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator> (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator>= (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter , typename _Ch_traits , typename _Ch_alloc >
bool operator<= (const sub_match< _Bi_iter > &__lhs, const __sub_match_string< _Bi_iter, _Ch_traits, _Ch_alloc > &__rhs)
 
template<typename _Bi_iter >
bool operator== (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator!= (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator< (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator> (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator>= (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator<= (typename iterator_traits< _Bi_iter >::value_type const *__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator== (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator!= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator< (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator> (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator>= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator<= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const *__rhs)
 
template<typename _Bi_iter >
bool operator== (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator!= (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator< (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator> (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator>= (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator<= (typename iterator_traits< _Bi_iter >::value_type const &__lhs, const sub_match< _Bi_iter > &__rhs)
 
template<typename _Bi_iter >
bool operator== (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Bi_iter >
bool operator!= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Bi_iter >
bool operator< (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Bi_iter >
bool operator> (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Bi_iter >
bool operator>= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Bi_iter >
bool operator<= (const sub_match< _Bi_iter > &__lhs, typename iterator_traits< _Bi_iter >::value_type const &__rhs)
 
template<typename _Ch_type , typename _Ch_traits , typename _Bi_iter >
basic_ostream< _Ch_type, _Ch_traits > & operator<< (basic_ostream< _Ch_type, _Ch_traits > &__os, const sub_match< _Bi_iter > &__m)
 
constexpr enable_if< __and_< __is_swappable< _BiIter >, __is_swappable< _BiIter > >::value >::type swap (pair< _BiIter, _BiIter > &__x, pair< _BiIter, _BiIter > &__y) noexcept(noexcept(__x.swap(__y)))
 
constexpr bool operator== (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 
constexpr bool operator< (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 
constexpr bool operator!= (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 
constexpr bool operator> (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 
constexpr bool operator<= (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 
constexpr bool operator>= (const pair< _BiIter, _BiIter > &__x, const pair< _BiIter, _BiIter > &__y)
 

Detailed Description

template<typename _BiIter>
class std::sub_match< _BiIter >

A sequence of characters matched by a particular marked sub-expression.

An object of this class is essentially a pair of iterators marking a matched subexpression within a regular expression pattern match. Such objects can be converted to and compared with std::basic_string objects of a similar base character type as the pattern matched by the regular expression.

The iterators that make up the pair are the usual half-open interval referencing the actual original pattern matched.

Definition at line 869 of file regex.h.

Member Typedef Documentation

◆ first_type

typedef _BiIter std::pair< _BiIter , _BiIter >::first_type
inherited

The type of the first member.

Definition at line 203 of file stl_pair.h.

◆ second_type

typedef _BiIter std::pair< _BiIter , _BiIter >::second_type
inherited

The type of the second member.

Definition at line 204 of file stl_pair.h.

Member Function Documentation

◆ compare() [1/3]

template<typename _BiIter >
int std::sub_match< _BiIter >::compare ( const string_type __s) const
inline

Compares this sub_match to a string.

Parameters
__sA string to compare to this sub_match.
Return values
negativeThis matched sequence will collate before __s.
zeroThis matched sequence is equivalent to __s.
positiveThis matched sequence will collate after __s.

Definition at line 938 of file regex.h.

◆ compare() [2/3]

template<typename _BiIter >
int std::sub_match< _BiIter >::compare ( const sub_match< _BiIter > &  __s) const
inline

Compares this and another matched sequence.

Parameters
__sAnother matched sequence to compare to this one.
Return values
negativeThis matched sequence will collate before __s.
zeroThis matched sequence is equivalent to __s.
positiveThis matched sequence will collate after __s.

Definition at line 924 of file regex.h.

Referenced by std::sub_match< _BiIter >::operator!=(), std::sub_match< _BiIter >::operator<(), std::sub_match< _BiIter >::operator<=(), std::sub_match< _BiIter >::operator==(), std::sub_match< _BiIter >::operator>(), and std::sub_match< _BiIter >::operator>=().

◆ compare() [3/3]

template<typename _BiIter >
int std::sub_match< _BiIter >::compare ( const value_type *  __s) const
inline

Compares this sub_match to a string.

Parameters
__sA string to compare to this sub_match.
Return values
negativeThis matched sequence will collate before __s.
zeroThis matched sequence is equivalent to __s.
positiveThis matched sequence will collate after __s.

Definition at line 942 of file regex.h.

◆ length()

template<typename _BiIter >
difference_type std::sub_match< _BiIter >::length ( ) const
inlinenoexcept

Gets the length of the matching sequence.

Definition at line 885 of file regex.h.

References std::pair< _BiIter, _BiIter >::first, and std::pair< _BiIter, _BiIter >::second.

◆ operator string_type()

template<typename _BiIter >
std::sub_match< _BiIter >::operator string_type ( ) const
inline

Gets the matching sequence as a string.

Returns
the matching sequence as a string.

This is the implicit conversion operator. It is identical to the str() member function except that it will want to pop up in unexpected places and cause a great deal of confusion and cursing from the unwary.

Definition at line 898 of file regex.h.

References std::sub_match< _BiIter >::str().

◆ str()

template<typename _BiIter >
string_type std::sub_match< _BiIter >::str ( ) const
inline

Gets the matching sequence as a string.

Returns
the matching sequence as a string.

Definition at line 907 of file regex.h.

References std::pair< _BiIter, _BiIter >::first, and std::pair< _BiIter, _BiIter >::second.

Referenced by std::sub_match< _BiIter >::operator string_type().

◆ swap()

constexpr void std::pair< _BiIter , _BiIter >::swap ( pair< _BiIter, _BiIter > &  __p)
inlineconstexprnoexceptinherited

Swap the first members and then the second members.

Definition at line 219 of file stl_pair.h.

Friends And Related Function Documentation

◆ make_pair()

constexpr pair< typename __decay_and_strip< _BiIter >::__type, typename __decay_and_strip< _BiIter >::__type > make_pair ( _BiIter &&  __x,
_BiIter &&  __y 
)
related

A convenience wrapper for creating a pair from two objects.

Parameters
__xThe first object.
__yThe second object.
Returns
A newly-constructed pair<> object of the appropriate type.

The C++98 standard says the objects are passed by reference-to-const, but C++03 says they are passed by value (this was LWG issue #181).

Since C++11 they have been passed by forwarding reference and then forwarded to the new members of the pair. To create a pair with a member of reference type, pass a reference_wrapper to this function.

Definition at line 739 of file stl_pair.h.

◆ operator!=()

constexpr bool operator!= ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Uses operator== to find the result.

Definition at line 668 of file stl_pair.h.

◆ operator<()

constexpr bool operator< ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Defines a lexicographical order for pairs.

For two pairs of the same type, P is ordered before Q if P.first is less than Q.first, or if P.first and Q.first are equivalent (neither is less than the other) and P.second is less than Q.second.

Definition at line 660 of file stl_pair.h.

◆ operator<=()

constexpr bool operator<= ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Uses operator< to find the result.

Definition at line 679 of file stl_pair.h.

◆ operator==()

constexpr bool operator== ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Two pairs of the same type are equal iff their members are equal.

Definition at line 638 of file stl_pair.h.

◆ operator>()

constexpr bool operator> ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Uses operator< to find the result.

Definition at line 674 of file stl_pair.h.

◆ operator>=()

constexpr bool operator>= ( const pair< _BiIter , _BiIter > &  __x,
const pair< _BiIter , _BiIter > &  __y 
)
related

Uses operator< to find the result.

Definition at line 686 of file stl_pair.h.

◆ swap()

constexpr enable_if< __and_< __is_swappable< _BiIter >, __is_swappable< _BiIter > >::value >::type swap ( pair< _BiIter , _BiIter > &  __x,
pair< _BiIter , _BiIter > &  __y 
)
related

Swap overload for pairs. Calls std::pair::swap().

Note
This std::swap overload is not declared in C++03 mode, which has performance implications, e.g. see https://gcc.gnu.org/PR38466

Definition at line 705 of file stl_pair.h.

Member Data Documentation

◆ first

_BiIter std::pair< _BiIter , _BiIter >::first
inherited

The first member.

Definition at line 206 of file stl_pair.h.

◆ second

_BiIter std::pair< _BiIter , _BiIter >::second
inherited

The second member.

Definition at line 207 of file stl_pair.h.


The documentation for this class was generated from the following file: