std::sub_match<BidirIt>::compare

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Text processing library

Localization library

Regular expressions library(C++11)

Formatting library(C++20)

Null-terminated sequence utilities

Byte strings

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Primitive numeric conversions

to_chars (C++17)
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from_chars (C++17)
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chars_format (C++17)

Text encoding identifications

text_encoding

(C++26)

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Regular expressions library

Classes
basic_regex (C++11)
sub_match (C++11)
match_results (C++11)
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regex_match (C++11)
regex_search (C++11)
regex_replace (C++11)
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regex_iterator (C++11)
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std::sub_match

Member functions
sub_match::sub_match
sub_match::length
sub_match::strsub_match::operator string_type
sub_match::compare
sub_match::swap
Non-member functions
operator==operator!=operator<<operator<=operator>operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
operator<<

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int compare(const sub_match& m)const;	(1)	(since C++11)
int compare(const string_type& s)const;	(2)	(since C++11)
int compare(const value_type* c)const;	(3)	(since C++11)

1) Compares twosub_matches directly by comparing their underlying character sequences. Equivalent tostr().compare(m.str()).

2) Compares asub_match with astd::basic_string. Equivalent tostr().compare(s).

3) Compares asub_match with a null-terminated sequence of the underlying character type pointed to bys. Equivalent tostr().compare(c).

[edit]Parameters

m	-	a reference to another sub_match
s	-	a reference to a string to compare to
c	-	a pointer to a null-terminated character sequence of the underlying`value_type` to compare to

[edit]Return value

A value less than zero if thissub_match isless than the other character sequence, zero if the both underlying character sequences are equal, greater than zero if thissub_match isgreater than the other character sequence.

[edit]Notes

This function is infrequently used directly by application code. Instead, one of the non-member comparison operators is used.

[edit]Example

This section is incomplete
Reason: no example

[edit]See also

compare	compares two strings (public member function of`std::basic_string<CharT,Traits,Allocator>`)[edit]
stroperator string_type	converts to the underlying string type (public member function)[edit]
operator==operator!=operator<operator<=operator>operator>=operator<=> (removed in C++20)(removed in C++20)(removed in C++20)(removed in C++20)(removed in C++20)(C++20)	compares a`sub_match` with another`sub_match`, a string, or a character (function template)[edit]