operator==,!=,<,<=,>,>=(std::sub_match)

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Regular expressions library

Classes

basic_regex (C++11)

sub_match (C++11)

match_results (C++11)

Algorithms

regex_match (C++11)

regex_search (C++11)

regex_replace (C++11)

Iterators

regex_iterator (C++11)

regex_token_iterator (C++11)

Exceptions

regex_error (C++11)

Traits

regex_traits (C++11)

Constants

syntax_option_type (C++11)

match_flag_type (C++11)

error_type (C++11)

Regex Grammar

Modified ECMAScript-262 (C++11)

std::sub_match

Member functions

sub_match::sub_match

sub_match::length

sub_match::strsub_match::operator string_type

sub_match::compare

Non-member functions

operator==operator!=operator<<operator<=operator>operator>=

operator<<

Defined in header <regex>
Direct comparison
template< class BidirIt > bool operator==( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(1)	(since C++11)
template< class BidirIt > bool operator!=( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(2)	(since C++11)
template< class BidirIt > bool operator<( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(3)	(since C++11)
template< class BidirIt > bool operator<=( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(4)	(since C++11)
template< class BidirIt > bool operator>( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(5)	(since C++11)
template< class BidirIt > bool operator>=( const sub_match<BidirIt>& lhs, const sub_match<BidirIt>& rhs );	(6)	(since C++11)
std::basic_string and std::sub_match
template< class BidirIt, class Traits, class Alloc > bool operator==( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(7)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator!=( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(8)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator<( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(9)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator<=( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(10)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator>( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(11)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator>=( const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& lhs, const sub_match<BidirIt>& rhs );	(12)	(since C++11)
std::sub_match and std::basic_string
template< class BidirIt, class Traits, class Alloc > bool operator==( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(13)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator!=( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(14)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator<( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(15)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator<=( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(16)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator>( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(17)	(since C++11)
template< class BidirIt, class Traits, class Alloc > bool operator>=( const sub_match<BidirIt>& lhs, const std::basic_string< typename std::iterator_traits<BidirIt>::value_type, Traits,Alloc>& rhs );	(18)	(since C++11)
std::iterator_traits<BidirIt>::value_type* and std::sub_match
template< class BidirIt > bool operator==( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(19)	(since C++11)
template< class BidirIt > bool operator!=( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(20)	(since C++11)
template< class BidirIt > bool operator<( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(21)	(since C++11)
template< class BidirIt > bool operator<=( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(22)	(since C++11)
template< class BidirIt > bool operator>( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(23)	(since C++11)
template< class BidirIt > bool operator>=( const typename std::iterator_traits<BidirIt>::value_type* rhs, const sub_match<BidirIt>& rhs );	(24)	(since C++11)
std::sub_match and std::iterator_traits<BidirIt>::value_type*
template< class BidirIt > bool operator==( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(25)	(since C++11)
template< class BidirIt > bool operator!=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(26)	(since C++11)
template< class BidirIt > bool operator<( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(27)	(since C++11)
template< class BidirIt > bool operator<=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(28)	(since C++11)
template< class BidirIt > bool operator>( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(29)	(since C++11)
template< class BidirIt > bool operator>=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type* rhs );	(30)	(since C++11)
std::iterator_traits<BidirIt>::value_type& and std::sub_match
template< class BidirIt > bool operator==( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(31)	(since C++11)
template< class BidirIt > bool operator!=( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(32)	(since C++11)
template< class BidirIt > bool operator<( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(33)	(since C++11)
template< class BidirIt > bool operator<=( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(34)	(since C++11)
template< class BidirIt > bool operator>( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(35)	(since C++11)
template< class BidirIt > bool operator>=( const typename std::iterator_traits<BidirIt>::value_type& rhs, const sub_match<BidirIt>& rhs );	(36)	(since C++11)
std::sub_match and std::iterator_traits<BidirIt>::value_type&
template< class BidirIt > bool operator==( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(37)	(since C++11)
template< class BidirIt > bool operator!=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(38)	(since C++11)
template< class BidirIt > bool operator<( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(39)	(since C++11)
template< class BidirIt > bool operator<=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(40)	(since C++11)
template< class BidirIt > bool operator>( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(41)	(since C++11)
template< class BidirIt > bool operator>=( const sub_match<BidirIt>& lhs, const typename std::iterator_traits<BidirIt>::value_type& rhs );	(42)	(since C++11)

Compares a sub_match to another sub_match, a string, a null-terminated character sequence or a character.

1-6) Compares two sub_match directly by comparing their underlying character sequences. Implemented as if by lhs.compare(rhs)

7-18) Compares a sub_match with a std::basic_string. Implemented as if by sm.compare(typename sub_match<BidirIt>::string_type(st.data(), st.size()), where sm is the sub_match argument and st is the basic_string argument.

19-30) Compares a sub_match with a null-terminated string. Implemented as if by sm.compare(s), where sm is the sub_match and s is the pointer to a null-terminated character string.

31-42) Compares a sub_match with a character. Implemented as if by sm.compare(typename sub_match<BidirIt>::string_type(1, ch)), where sm is a sub_match and ch is a character.

Parameters

lhs, rhs

-

a sub_match, basic_string, pointer to a null-terminated string or a character to compare

Return value

true if the corresponding comparison holds as defined by std::sub_match::compare(), false otherwise.

See also

compare

compares matched subsequence (if any) (public member function)