Espacios de nombres
Variantes
Acciones

std::basic_string::find

De cppreference.com
< cpp‎ | string‎ | basic string

 
 
Strings biblioteca
Terminadas en nulo
Original:
Null-terminated strings
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Cadenas de bytes
Multibyte cuerdas
Cadenas anchas
Clases
Original:
Classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string
char_traits
 
std::basic_string
Las funciones miembro
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::basic_string
basic_string::operator=
basic_string::assign
basic_string::get_allocator
Elemento acceso
Original:
Element access
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::at
basic_string::operator[]
basic_string::front(C++11)
basic_string::back(C++11)
basic_string::data
basic_string::c_str
Los iteradores
Original:
Iterators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::begin
basic_string::cbegin

(C++11)
basic_string::end
basic_string::cend

(C++11)
basic_string::rbegin
basic_string::crbegin

(C++11)
basic_string::rend
basic_string::crend

(C++11)
Capacidad
Original:
Capacity
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::empty
basic_string::size
basic_string::length
basic_string::max_size
basic_string::reserve
basic_string::capacity
basic_string::shrink_to_fit(C++11)
Operaciones
Original:
Operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::clear
basic_string::insert
basic_string::erase
basic_string::push_back
basic_string::pop_back(C++11)
basic_string::append
basic_string::operator+=
basic_string::compare
basic_string::replace
basic_string::substr
basic_string::copy
basic_string::resize
basic_string::swap
Buscar
Original:
Search
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::find
basic_string::rfind
basic_string::find_first_of
basic_string::find_first_not_of
basic_string::find_last_of
basic_string::find_last_not_of
Constantes
Original:
Constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::npos
Terceros funciones
Original:
Non-member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
operator+
operator==
operator!=
operator<
operator>
operator<=
operator>=
swap(std::basic_string)
operator<<
operator>>
getline
stoi
stol
stoll
(C++11)
(C++11)
(C++11)
stoul
stoull
(C++11)
(C++11)
stof
stod
stold
(C++11)
(C++11)
(C++11)
to_string(C++11)
to_wstring(C++11)
Clases de ayuda
Original:
Helper classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
hash<std::string>
hash<std::wstring>
hash<std::u32string>
hash<std::u16string>
(C++11)
 
size_type find( const basic_string& str, size_type pos = 0 ) const;
(1)
size_type find( const CharT* s, size_type pos, size_type count ) const;
(2)
size_type find( const CharT* s, size_type pos = 0 ) const;
(3)
size_type find( CharT ch, size_type pos = 0 ) const;
(4)
Busca la primera subcadena igual a la secuencia de caracteres dado. Empieza la búsqueda en pos, es decir, la subcadena encontrado no debe comenzar en una posición anterior a pos .
Original:
Finds the first substring equal to the given character sequence. Search begins at pos, i.e. the found substring must not begin in a position preceding pos.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1)
Busca la primera subcadena igual a str .
Original:
Finds the first substring equal to str.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
Busca la primera subcadena igual a los personajes count primero de la cadena de caracteres apuntada por s. s puede contener caracteres nulos .
Original:
Finds the first substring equal to the first count characters of the character string pointed to by s. s can include null characters.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
3)
Busca la primera subcadena igual a la cadena de caracteres apuntada por s. La longitud de la cadena se determina por el primer carácter nulo .
Original:
Finds the first substring equal to the character string pointed to by s. The length of the string is determined by the first null character.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
4)
Busca el primer carácter ch .
Original:
Finds the first character ch.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Contenido

[editar] Parámetros

str -
cadena a buscar
Original:
string to search for
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
count -
longitud de la subcadena a buscar
Original:
length of substring to search for
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
s -
puntero a una cadena de caracteres para que busque para
Original:
pointer to a character string to seach for
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ch -
carácter que desea buscar
Original:
character to search for
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Valor de retorno

posición del primer carácter de la subcadena encontrada o si no npos subcadena se encuentra dicho .
Original:
position of the first character of the found substring or npos if no such substring is found.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Ejemplo

#include <string>
#include <iostream>
 
void print(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()
{
    std::string::size_type n;
    std::string const s = "This is a string";
 
    // search from beginning of string
    n = s.find("is");
    print(n, s);
 
    // search from position 5
    n = s.find("is", 5);
    print(n, s);
 
    // find a single character
    n = s.find('a');
    print(n, s);
 
    // find a single character
    n = s.find('q');
    print(n, s);
}

Output:

found: is is a string
found: is a string
found: a string
not found

[editar] Ver también

Encuentra la última aparición de una subcadena
Original:
find the last occurrence of a substring
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
encontrar la primera aparición de caracteres
Original:
find first occurrence of characters
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
encontrar la primera ausencia de caracteres
Original:
find first absence of characters
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
encontrar la última aparición de caracteres
Original:
find last occurrence of characters
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
encontrar última ausencia de caracteres
Original:
find last absence of characters
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]