cpp/string/basic string/find - Revision history

Space Mission: /* Synopsis */ "notes=" ⇒ "constexpr="

2024-05-29T22:53:14Z

Synopsis: "notes=" ⇒ "constexpr="

← Older revision		Revision as of 22:53, 29 May 2024
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	{{cpp/string/basic_string/navbar}}		{{cpp/string/basic_string/navbar}}
	{{dcl begin}}		{{dcl begin}}
	{{~~dcl~~\|num=1\|~~notes~~=~~{{mark noexcept since~~ c++11~~}}<br>{{mark~~ constexpr ~~since~~ c++20}}\|1=		{{dcla\|anchor=no\|num=1\|noexcept=c++11\|constexpr=c++20\|1=
	size_type find( const basic_string& str, size_type pos = 0 ) const;		size_type find( const basic_string& str, size_type pos = 0 ) const;
	}}		}}
	{{~~dcl~~\|num=2\|~~notes~~=~~{{mark constexpr since~~ c++20}}\|1=		{{dcla\|anchor=no\|num=2\|constexpr=c++20\|1=
	size_type find( const CharT* s, size_type pos, size_type count ) const;		size_type find( const CharT* s, size_type pos, size_type count ) const;
	}}		}}
	{{~~dcl~~\|num=3\|~~notes~~=~~{{mark constexpr since~~ c++20}}\|1=		{{dcla\|anchor=no\|num=3\|constexpr=c++20\|1=
	size_type find( const CharT* s, size_type pos = 0 ) const;		size_type find( const CharT* s, size_type pos = 0 ) const;
	}}		}}
	{{~~dcl~~\|num=4\|~~notes~~=~~{{mark noexcept since~~ c++11~~}}<br>{{mark~~ constexpr ~~since~~ c++20}}\|1=		{{dcla\|anchor=no\|num=4\|noexcept=c++11\|constexpr=c++20\|1=
	size_type find( CharT ch, size_type pos = 0 ) const;		size_type find( CharT ch, size_type pos = 0 ) const;
	}}		}}
	{{~~dcl~~\|num=5\|since=c++17\|~~notes~~=~~{{mark constexpr since~~ c++20}}\|1=		{{dcla\|anchor=no\|num=5\|since=c++17\|constexpr=c++20\|1=
	template< class StringViewLike >		template< class StringViewLike >
	size_type find( const StringViewLike& t,		size_type find( const StringViewLike& t,

Space Mission: /* Synopsis */ noexcept/constexpr since saga.

2024-04-18T18:03:26Z

Synopsis: noexcept/constexpr since saga.

← Older revision		Revision as of 18:03, 18 April 2024
Line 2:		Line 2:
	{{cpp/string/basic_string/navbar}}		{{cpp/string/basic_string/navbar}}
	{{dcl begin}}		{{dcl begin}}
	{{dcl ~~rev multi~~\|num=1		{{dcl\|num=1\|notes={{mark noexcept since c++11}}<br>{{mark constexpr since c++20}}\|1=
	\|~~dcl1~~=
	size_type find( const basic_string& str, size_type pos = 0 ) const;		size_type find( const basic_string& str, size_type pos = 0 ) const;
	~~\|since2=c++11\|dcl2=~~
	~~size_type find( const basic_string& str, size_type pos = 0 ) const noexcept;~~
	~~\|since3=c++20\|dcl3=~~
	~~constexpr size_type find( const basic_string& str,~~
	~~size_type pos = 0 ) const noexcept;~~
	}}		}}
	{{dcl ~~rev multi~~\|num=2		{{dcl\|num=2\|notes={{mark constexpr since c++20}}\|1=
	\|~~dcl1~~=
	size_type find( const CharT* s, size_type pos, size_type count ) const;		size_type find( const CharT* s, size_type pos, size_type count ) const;
	~~\|since2=c++20\|dcl2=~~
	~~constexpr size_type find( const CharT* s,~~
	~~size_type pos, size_type count ) const;~~
	}}		}}
	{{dcl ~~rev multi~~\|num=3		{{dcl\|num=3\|notes={{mark constexpr since c++20}}\|1=
	\|~~dcl1~~=
	size_type find( const CharT* s, size_type pos = 0 ) const;		size_type find( const CharT* s, size_type pos = 0 ) const;
	~~\|since2=c++20\|dcl2=~~
	~~constexpr size_type find( const CharT* s, size_type pos = 0 ) const;~~
	}}		}}
	{{dcl ~~rev multi~~\|num=4		{{dcl\|num=4\|notes={{mark noexcept since c++11}}<br>{{mark constexpr since c++20}}\|1=
	\|~~dcl1~~=
	size_type find( CharT ch, size_type pos = 0 ) const;		size_type find( CharT ch, size_type pos = 0 ) const;
	~~\|since2=c++11\|dcl2=~~
	~~size_type find( CharT ch, size_type pos = 0 ) const noexcept;~~
	~~\|since3=c++20\|dcl3=~~
	~~constexpr size_type find( CharT ch, size_type pos = 0 ) const noexcept;~~
	}}		}}
	{{dcl ~~rev multi~~\|num=5		{{dcl\|num=5\|since=c++17\|notes={{mark constexpr since c++20}}\|1=
	\|~~since1~~=c++17\|~~dcl1~~=
	template< class StringViewLike >		template< class StringViewLike >
	size_type find( const StringViewLike& t,		size_type find( const StringViewLike& t,
	size_type pos = 0 ) const noexcept(/* see below */);		size_type pos = 0 ) const noexcept(/* see below */);
	~~\|since2=c++20\|dcl2=~~
	~~template< class StringViewLike >~~
	~~constexpr size_type find( const StringViewLike& t,~~
	~~size_type pos = 0 ) const noexcept(/* see below */);~~
	}}		}}
	{{dcl end}}		{{dcl end}}

Xmcgcg: {{c}}

2023-07-13T07:59:21Z

← Older revision		Revision as of 07:59, 13 July 2023
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	@5@ {{cpp/string/sv hack\|finds the first substring equal to {{c\|sv}}}}		@5@ {{cpp/string/sv hack\|finds the first substring equal to {{c\|sv}}}}

	Formally, a substring {{c\|str}} is said to be ''found'' at position {{c\|xpos}} if all of the following is true:		Formally, a substring {{c\|str}} is said to be ''found'' at position {{c\|xpos}} if all of the following are {{c\|true}}:
	* {{c\|1=xpos >= pos}}		* {{c\|1=xpos >= pos}}
	* {{c\|1=xpos + str.size() <= size()}}		* {{c\|1=xpos + str.size() <= size()}}

Xmcgcg: Added LWG issue #847 DR (part 16).

2023-07-13T07:53:05Z

Added LWG issue #847 DR (part 16).

← Older revision		Revision as of 07:53, 13 July 2023
Line 49:		Line 49:

	@2@ Finds the first substring equal to the range {{range\|s\|s + count}}. This range may contain null characters.		@2@ Finds the first substring equal to the range {{range\|s\|s + count}}. This range may contain null characters.

			@@ If {{range\|s\|s + count}} is not a [[cpp/iterator#Ranges\|valid range]], the behavior is undefined.

	@3@ Finds the first substring equal to the character string pointed to by {{c\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.		@3@ Finds the first substring equal to the character string pointed to by {{c\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.

			@@ If {{range\|s\|s + Traits::length(s)}} is not a [[cpp/iterator#Ranges\|valid range]], the behavior is undefined.

	@4@ Finds the first character {{c\|ch}} (treated as a single-character substring by the formal rules below).		@4@ Finds the first character {{c\|ch}} (treated as a single-character substring by the formal rules below).

	@5@ {{cpp/string/sv hack\|finds the first substring equal to {{tt\|sv}}}}		@5@ {{cpp/string/sv hack\|finds the first substring equal to {{c\|sv}}}}

	Formally, a substring {{c\|str}} is said to be ''found'' at position {{tt\|xpos}} if all of the following is true:		Formally, a substring {{c\|str}} is said to be ''found'' at position {{c\|xpos}} if all of the following is true:
	* {{c\|1=xpos >= pos}}		* {{c\|1=xpos >= pos}}
	* {{c\|1=xpos + str.size() <= size()}}		* {{c\|1=xpos + str.size() <= size()}}
	* for all positions {{tt\|n}} in {{c\|str}}, {{c\|Traits::eq(at(xpos+n), str.at(n))}}.		* for all positions {{c\|n}} in {{c\|str}}, {{c\|Traits::eq(at(xpos + n), str.at(n))}}.

	In particular, this implies that		In particular, this implies that
Line 80:		Line 84:

	===Exceptions===		===Exceptions===
	@1-4@ Throws nothing.		@1,4@ Throws nothing.
	@5@ {{noexcept\|std::is_nothrow_convertible_v<const T&, std::basic_string_view<CharT, Traits>>}}		@5@ {{noexcept\|std::is_nothrow_convertible_v<const T&, std::basic_string_view<CharT, Traits>>}}

			{{cpp/strong exception safety guarantee}}

	===Example===		===Example===
Line 90:		Line 96:
	#include <string>		#include <string>

	void print(int id, std::string::size_type n, std::string const& s);		void print(int id, std::string::size_type n, std::string const& s)
			{
			std::cout << id << ") ";
			if (std::string::npos == n)
			std::cout << "not found! n == npos\n";
			else
			std::cout << "found @ n = " << n << ", substr(" << n << ") = "
			<< std::quoted(s.substr(n)) << '\n';
			}

	int main()		int main()
Line 98:		Line 112:
	^ ^ ^		^ ^ ^
	1 2 3 */		1 2 3 */

	// search from beginning of string		// search from beginning of string
	n = s.find("is");		n = s.find("is");
	print(1, n, s);		print(1, n, s);

	// search from position 5		// search from position 5
	n = s.find("is", 5);		n = s.find("is", 5);
	print(2, n, s);		print(2, n, s);

	// find a single character		// find a single character
	n = s.find('a');		n = s.find('a');
	print(3, n, s);		print(3, n, s);

	// find a single character		// find a single character
	n = s.find('q');		n = s.find('q');
	print(4, n, s);		print(4, n, s);
	}

	~~void print(int id, std::string::size_type n, std::string const& s)~~
	{
	~~std::cout << id << ") ";~~
	~~if (std::string::npos == n)~~
	~~std::cout << "not found! n == npos\n";~~
	~~else~~
	~~std::cout << "found @ n = " << n << ", substr(" << n << ") = "~~
	~~<< std::quoted(s.substr(n)) << '\n';~~
	}		}
	\|output=		\|output=
Line 134:		Line 138:
	===Defect reports===		===Defect reports===
	{{dr list begin}}		{{dr list begin}}
	{{dr list item\|wg=lwg\|dr=2064\|std=C++11\|before=~~overload~~ {{v\|3~~}} and {{v\|~~4}} were noexcept\|after=removed}}		{{dr list item\|wg=lwg\|dr=847\|std=C++98\|before=there was no exception safety guarantee\|after=added strong exception safety guarantee}}
	{{dr list item\|wg=lwg\|dr=2946\|std=C++17\|before={{tt\|~~string_view~~}} ~~overload causes~~ ambiguity in some cases\|after=avoided by making it a template}}		{{dr list item\|wg=lwg\|dr=2064\|std=C++11\|before=overloads {{v\|3,4}} were noexcept\|after=removed}}
	{{dr list item\|paper=P1148R0\|std=C++11<br>C++17\|before=noexcept for ~~overload~~ {{v\|4~~}}/{{v\|~~5}} ~~was~~ accidently dropped by LWG2064/LWG2946\|after=restored}}		{{dr list item\|wg=lwg\|dr=2946\|std=C++17\|before=overload {{v\|5}} caused ambiguity in some cases\|after=avoided by making it a template}}
			{{dr list item\|paper=P1148R0\|std=C++11<br>C++17\|before=noexcept for overloads {{v\|4,5}} were<br>accidently dropped by LWG2064/LWG2946\|after=restored}}
	{{dr list end}}		{{dr list end}}

Andreas Krug: fmt, {{c}}, {{range}}, "\n" -> '\n'

2023-06-02T07:35:02Z

fmt, {{c}}, {{range}}, "\n" -> '\n'

← Older revision		Revision as of 07:35, 2 June 2023
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	{{dcl rev multi\|num=5		{{dcl rev multi\|num=5
	\|since1=c++17\|dcl1=		\|since1=c++17\|dcl1=
	template < class StringViewLike >		template< class StringViewLike >
	size_type find( const StringViewLike& t,		size_type find( const StringViewLike& t,
	size_type pos = 0 ) const noexcept(/* see below */);		size_type pos = 0 ) const noexcept(/* see below */);
	\|since2=c++20\|dcl2=		\|since2=c++20\|dcl2=
	template < class StringViewLike >		template< class StringViewLike >
	constexpr size_type find( const StringViewLike& t,		constexpr size_type find( const StringViewLike& t,
	size_type pos = 0 ) const noexcept(/* see below */);		size_type pos = 0 ) const noexcept(/* see below */);
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	{{dcl end}}		{{dcl end}}

	Finds the first substring equal to the given character sequence. Search begins at {{tt\|pos}}, i.e. the found substring must not begin in a position preceding {{tt\|pos}}.		Finds the first substring equal to the given character sequence. Search begins at {{c\|pos}}, i.e. the found substring must not begin in a position preceding {{c\|pos}}.

	@1@ Finds the first substring equal to {{tt\|str}}.		@1@ Finds the first substring equal to {{c\|str}}.

	@2@ Finds the first substring equal to the range {{tt\|[s, s+count)}}. This range may contain null characters.		@2@ Finds the first substring equal to the range {{range\|s\|s + count}}. This range may contain null characters.

	@3@ Finds the first substring equal to the character string pointed to by {{tt\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.		@3@ Finds the first substring equal to the character string pointed to by {{c\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.

	@4@ Finds the first character {{tt\|ch}} (treated as a single-character substring by the formal rules below).		@4@ Finds the first character {{c\|ch}} (treated as a single-character substring by the formal rules below).

	@5@ {{cpp/string/sv hack\|finds the first substring equal to {{tt\|sv}}}}		@5@ {{cpp/string/sv hack\|finds the first substring equal to {{tt\|sv}}}}

	Formally, a substring {{tt\|str}} is said to be ''found'' at position {{tt\|xpos}} if all of the following is true:		Formally, a substring {{c\|str}} is said to be ''found'' at position {{tt\|xpos}} if all of the following is true:
	* {{c\|1=xpos >= pos}}		* {{c\|1=xpos >= pos}}
	* {{c\|1=xpos + str.size() <= size()}}		* {{c\|1=xpos + str.size() <= size()}}
	* for all positions {{tt\|n}} in {{tt\|str}}, {{c\|Traits::eq(at(xpos+n), str.at(n))}}		* for all positions {{tt\|n}} in {{c\|str}}, {{c\|Traits::eq(at(xpos+n), str.at(n))}}.

	In particular, this implies that		In particular, this implies that
	* a substring can be found only if {{c\|1=pos <= size() - str.size()}}		* a substring can be found only if {{c\|1=pos <= size() - str.size()}}
	* an empty substring is found at {{tt\|pos}} if and only if {{c\|1=pos <= size()}}		* an empty substring is found at {{c\|pos}} if and only if {{c\|1=pos <= size()}}
	* for a non-empty substring, if {{c\|1=pos >= size()}}, the function always returns {{lc\|npos}}.		* for a non-empty substring, if {{c\|1=pos >= size()}}, the function always returns {{lc\|npos}}.

Line 95:		Line 95:
	{		{
	std::string::size_type n;		std::string::size_type n;
	std::string const s = "This is a string"; /*		std::string const s = "This is a string"; /*
	^ ^ ^		^ ^ ^
	1 2 3 */		1 2 3 */

	// search from beginning of string		// search from beginning of string
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	else		else
	std::cout << "found @ n = " << n << ", substr(" << n << ") = "		std::cout << "found @ n = " << n << ", substr(" << n << ") = "
	<< std::quoted(s.substr(n)) << "\n";		<< std::quoted(s.substr(n)) << '\n';
	}		}
	\|output=		\|output=

Space Mission: /* Example */ enumerate the output

2022-12-09T15:46:21Z

Example: enumerate the output

← Older revision		Revision as of 15:46, 9 December 2022
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	{{example		{{example
	\|code=		\|code=
			#include <iomanip>
	#include <iostream>		#include <iostream>
	#include <string>		#include <string>

	void print(std::string::size_type n, std::string const &s)		void print(int id, std::string::size_type n, std::string const& s);
	{
	~~if (n == std::string::npos)~~
	~~std::cout << "not found\n";~~
	~~else~~
	~~std::cout << "found: " << s.substr(n) << '\n'~~;
	}

	int main()		int main()
	{		{
	std::string::size_type n;		std::string::size_type n;
	std::string const s = "This is a string";		std::string const s = "This is a string"; /*
			^ ^ ^
			1 2 3 */

	// search from beginning of string		// search from beginning of string
	n = s.find("is");		n = s.find("is");
	print(n, s);		print(1, n, s);

	// search from position 5		// search from position 5
	n = s.find("is", 5);		n = s.find("is", 5);
	print(n, s);		print(2, n, s);

	// find a single character		// find a single character
	n = s.find('a');		n = s.find('a');
	print(n, s);		print(3, n, s);

	// find a single character		// find a single character
	n = s.find('q');		n = s.find('q');
	print(n, s);		print(4, n, s);
			}

			void print(int id, std::string::size_type n, std::string const& s)
			{
			std::cout << id << ") ";
			if (std::string::npos == n)
			std::cout << "not found! n == npos\n";
			else
			std::cout << "found @ n = " << n << ", substr(" << n << ") = "
			<< std::quoted(s.substr(n)) << "\n";
	}		}
	\|output=		\|output=
	found: is is a string		1) found @ n = 2, substr(2) = "is is a string"
	found: is a string		2) found @ n = 5, substr(5) = "is a string"
	found: a string		3) found @ n = 8, substr(8) = "a string"
	not found		4) not found! n == npos
	}}		}}

Space Mission: fmt, mainly ↑Synopsis: overload (5)

2022-12-09T15:20:35Z

fmt, mainly ↑Synopsis: overload (5)

← Older revision		Revision as of 15:20, 9 December 2022
Line 1:		Line 1:
	{{cpp/string/basic_string/title \| find}}		{{cpp/string/basic_string/title\|find}}
	{{cpp/string/basic_string/navbar}}		{{cpp/string/basic_string/navbar}}
	{{dcl begin}}		{{dcl begin}}
	{{dcl rev multi \| num=1		{{dcl rev multi\|num=1
	\| dcl1=		\|dcl1=
	size_type find( const basic_string& str, size_type pos = 0 ) const;		size_type find( const basic_string& str, size_type pos = 0 ) const;
	\| since2=c++11 \| dcl2=		\|since2=c++11\|dcl2=
	size_type find( const basic_string& str, size_type pos = 0 ) const noexcept;		size_type find( const basic_string& str, size_type pos = 0 ) const noexcept;
	\| since3=c++20 \| dcl3=		\|since3=c++20\|dcl3=
	constexpr size_type find( const basic_string& str,		constexpr size_type find( const basic_string& str,
	size_type pos = 0 ) const noexcept;		size_type pos = 0 ) const noexcept;
	}}		}}
	{{dcl rev multi \| num=2		{{dcl rev multi\|num=2
	\| dcl1=		\|dcl1=
	size_type find( const CharT* s, size_type pos, size_type count ) const;		size_type find( const CharT* s, size_type pos, size_type count ) const;
	\| since2=c++20 \| dcl2=		\|since2=c++20\|dcl2=
	constexpr size_type find( const CharT* s,		constexpr size_type find( const CharT* s,
	size_type pos, size_type count ) const;		size_type pos, size_type count ) const;
	}}		}}
	{{dcl rev multi \| num=3		{{dcl rev multi\|num=3
	\| dcl1=		\|dcl1=
	size_type find( const CharT* s, size_type pos = 0 ) const;		size_type find( const CharT* s, size_type pos = 0 ) const;
	\| since2=c++20 \| dcl2=		\|since2=c++20\|dcl2=
	constexpr size_type find( const CharT* s, size_type pos = 0 ) const;		constexpr size_type find( const CharT* s, size_type pos = 0 ) const;
	}}		}}
	{{dcl rev multi \| num=4		{{dcl rev multi\|num=4
	\| dcl1=		\|dcl1=
	size_type find( CharT ch, size_type pos = 0 ) const;		size_type find( CharT ch, size_type pos = 0 ) const;
	\| since2=c++11 \| dcl2=		\|since2=c++11\|dcl2=
	size_type find( CharT ch, size_type pos = 0 ) const noexcept;		size_type find( CharT ch, size_type pos = 0 ) const noexcept;
	\| since3=c++20 \| dcl3=		\|since3=c++20\|dcl3=
	constexpr size_type find( CharT ch, size_type pos = 0 ) const noexcept;		constexpr size_type find( CharT ch, size_type pos = 0 ) const noexcept;
	}}		}}
	{{dcl rev multi \| num=5		{{dcl rev multi\|num=5
	\| since1=c++17 \| dcl1=		\|since1=c++17\|dcl1=
	template < class StringViewLike >		template < class StringViewLike >
	size_type find( const StringViewLike& t, size_type pos = 0 ) const noexcept(/* see below */);		size_type find( const StringViewLike& t,
	\| since2=c++20 \| dcl2=		size_type pos = 0 ) const noexcept(/* see below */);
			\|since2=c++20\|dcl2=
	template < class StringViewLike >		template < class StringViewLike >
	constexpr size_type find( const StringViewLike& t,		constexpr size_type find( const StringViewLike& t,
Line 49:		Line 50:
	@2@ Finds the first substring equal to the range {{tt\|[s, s+count)}}. This range may contain null characters.		@2@ Finds the first substring equal to the range {{tt\|[s, s+count)}}. This range may contain null characters.

	@3@ Finds the first substring equal to the character string pointed to by {{tt\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.		@3@ Finds the first substring equal to the character string pointed to by {{tt\|s}}. The length of the string is determined by the first null character using {{c\|Traits::length(s)}}.

	@4@ Finds the first character {{tt\|ch}} (treated as a single-character substring by the formal rules below).		@4@ Finds the first character {{tt\|ch}} (treated as a single-character substring by the formal rules below).
Line 56:		Line 57:

	Formally, a substring {{tt\|str}} is said to be ''found'' at position {{tt\|xpos}} if all of the following is true:		Formally, a substring {{tt\|str}} is said to be ''found'' at position {{tt\|xpos}} if all of the following is true:
	* {{c\|xpos >{{=}} pos}}		* {{c\|1=xpos >= pos}}
	* {{c\|xpos + str.size() <{{=}} size()}}		* {{c\|1=xpos + str.size() <= size()}}
	* for all positions {{tt\|n}} in {{tt\|str}}, {{c\|Traits::eq(at(xpos+n), str.at(n))}}		* for all positions {{tt\|n}} in {{tt\|str}}, {{c\|Traits::eq(at(xpos+n), str.at(n))}}

Line 67:		Line 68:
	===Parameters===		===Parameters===
	{{par begin}}		{{par begin}}
	{{par \| str \| string to search for}}		{{par\|str\|string to search for}}
	{{par \| pos \| position at which to start the search}}		{{par\|pos\|position at which to start the search}}
	{{par \| count \| length of substring to search for}}		{{par\|count\|length of substring to search for}}
	{{par \| s \| pointer to a character string to search for}}		{{par\|s\|pointer to a character string to search for}}
	{{par \| ch \| character to search for}}		{{par\|ch\|character to search for}}
	{{par \| t \| object (convertible to {{lc\|std::basic_string_view}}) to search for}}		{{par\|t\|object (convertible to {{lc\|std::basic_string_view}}) to search for}}
	{{par end}}		{{par end}}

	===Return value===		===Return value===
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	===Example===		===Example===
	{{example		{{example
	\| code=		\|code=
			#include <iostream>
	#include <string>		#include <string>
	~~#include <iostream>~~

	void print(std::string::size_type n, std::string const &s)		void print(std::string::size_type n, std::string const &s)
	{		{
	if (n == std::string::npos) {		if (n == std::string::npos)
	std::cout << "not found\n";		std::cout << "not found\n";
	} else {		else
	std::cout << "found: " << s.substr(n) << '\n';		std::cout << "found: " << s.substr(n) << '\n';
	}
	}		}

Line 118:		Line 118:
	print(n, s);		print(n, s);
	}		}
	\| output=		\|output=
	found: is is a string		found: is is a string
	found: is a string		found: is a string
Line 134:		Line 134:
	===See also===		===See also===
	{{dsc begin}}		{{dsc begin}}
	{{dsc inc \| cpp/string/byte/dsc strstr}}		{{dsc inc\|cpp/string/byte/dsc strstr}}
	{{dsc inc \| cpp/string/wide/dsc wcsstr}}		{{dsc inc\|cpp/string/wide/dsc wcsstr}}
	{{dsc inc \| cpp/string/byte/dsc strchr}}		{{dsc inc\|cpp/string/byte/dsc strchr}}
	{{dsc inc \| cpp/string/wide/dsc wcschr}}		{{dsc inc\|cpp/string/wide/dsc wcschr}}
	{{dsc inc \| cpp/string/basic_string/dsc rfind}}		{{dsc inc\|cpp/string/basic_string/dsc rfind}}
	{{dsc inc \| cpp/string/basic_string/dsc find_first_of}}		{{dsc inc\|cpp/string/basic_string/dsc find_first_of}}
	{{dsc inc \| cpp/string/basic_string/dsc find_first_not_of}}		{{dsc inc\|cpp/string/basic_string/dsc find_first_not_of}}
	{{dsc inc \| cpp/string/basic_string/dsc find_last_of}}		{{dsc inc\|cpp/string/basic_string/dsc find_last_of}}
	{{dsc inc \| cpp/string/basic_string/dsc find_last_not_of}}		{{dsc inc\|cpp/string/basic_string/dsc find_last_not_of}}
	{{dsc inc \| cpp/string/basic_string_view/dsc find}}		{{dsc inc\|cpp/string/basic_string_view/dsc find}}
	{{dsc inc \| cpp/algorithm/dsc search}}		{{dsc inc\|cpp/algorithm/dsc search}}
	{{dsc end}}		{{dsc end}}

	{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}		{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}

Ybab321: Make string_view overload recognisable

2022-01-16T15:57:01Z

Make string_view overload recognisable

← Older revision		Revision as of 15:57, 16 January 2022
Line 34:		Line 34:
	{{dcl rev multi \| num=5		{{dcl rev multi \| num=5
	\| since1=c++17 \| dcl1=		\| since1=c++17 \| dcl1=
	template < class T >		template < class StringViewLike >
	size_type find( const T& t, size_type pos = 0 ) const noexcept(/* see below */);		size_type find( const StringViewLike& t, size_type pos = 0 ) const noexcept(/* see below */);
	\| since2=c++20 \| dcl2=		\| since2=c++20 \| dcl2=
	template < class T >		template < class StringViewLike >
	constexpr size_type find( const T& t,		constexpr size_type find( const StringViewLike& t,
	size_type pos = 0 ) const noexcept(/* see below */);		size_type pos = 0 ) const noexcept(/* see below */);
	}}		}}

Space Mission: /* See also */ + cpp/string/basic_string_view/find

2021-04-06T17:56:01Z

← Older revision		Revision as of 17:56, 6 April 2021
Line 143:		Line 143:
	{{dsc inc \| cpp/string/basic_string/dsc find_last_of}}		{{dsc inc \| cpp/string/basic_string/dsc find_last_of}}
	{{dsc inc \| cpp/string/basic_string/dsc find_last_not_of}}		{{dsc inc \| cpp/string/basic_string/dsc find_last_not_of}}
			{{dsc inc \| cpp/string/basic_string_view/dsc find}}
	{{dsc inc \| cpp/algorithm/dsc search}}		{{dsc inc \| cpp/algorithm/dsc search}}
	{{dsc end}}		{{dsc end}}

	{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}		{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}

T. Canens: /* Exceptions */

2020-11-16T21:25:04Z

Exceptions

← Older revision		Revision as of 21:25, 16 November 2020
Line 79:		Line 79:

	===Exceptions===		===Exceptions===
	@1,4@ Throws nothing.		@1-4@ Throws nothing.
	@5@ {{noexcept\|std::is_nothrow_convertible_v<const T&, std::basic_string_view<CharT, Traits>>}}		@5@ {{noexcept\|std::is_nothrow_convertible_v<const T&, std::basic_string_view<CharT, Traits>>}}

← Older revision		Revision as of 07:59, 13 July 2023
Line 60:		Line 60:
	@5@ {{cpp/string/sv hack\|finds the first substring equal to {{c\|sv}}}}		@5@ {{cpp/string/sv hack\|finds the first substring equal to {{c\|sv}}}}

	Formally, a substring {{c\|str}} is said to be ''found'' at position {{c\|xpos}} if all of the following is true:		Formally, a substring {{c\|str}} is said to be ''found'' at position {{c\|xpos}} if all of the following are {{c\|true}}:
	* {{c\|1=xpos >= pos}}		* {{c\|1=xpos >= pos}}
	* {{c\|1=xpos + str.size() <= size()}}		* {{c\|1=xpos + str.size() <= size()}}

← Older revision		Revision as of 17:56, 6 April 2021
Line 143:		Line 143:
	{{dsc inc \| cpp/string/basic_string/dsc find_last_of}}		{{dsc inc \| cpp/string/basic_string/dsc find_last_of}}
	{{dsc inc \| cpp/string/basic_string/dsc find_last_not_of}}		{{dsc inc \| cpp/string/basic_string/dsc find_last_not_of}}
			{{dsc inc \| cpp/string/basic_string_view/dsc find}}
	{{dsc inc \| cpp/algorithm/dsc search}}		{{dsc inc \| cpp/algorithm/dsc search}}
	{{dsc end}}		{{dsc end}}

	{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}		{{langlinks\|de\|es\|fr\|it\|ja\|pt\|ru\|zh}}