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std::strcmp

De cppreference.com
< cpp‎ | string‎ | byte

 
 
Strings biblioteca
Terminadas en nulo
Original:
Null-terminated strings
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Cadenas de bytes
Multibyte cuerdas
Cadenas anchas
Clases
Original:
Classes
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basic_string
char_traits
 
Terminadas en nulo de bytes
Funciones
Original:
Functions
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De manipulación de caracteres
Original:
Character manipulation
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Las conversiones a formatos numéricos
Original:
Conversions to numeric formats
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Cadena de manipulación
Original:
String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
Cadena examen
Original:
String examination
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Memoria manipulación
Original:
Memory manipulation
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memchr
memcmp
memset
memcpy
memmove
Varios
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Miscellaneous
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strerror
 
Defined in header <cstring>
int strcmp( const char *lhs, const char *rhs );
Compara dos cadenas terminadas en null byte. La comparación se realiza lexicográfico .
Original:
Compares two null-terminated byte strings. The comparison is done lexicographically.
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Tanto lhs y rhs debe apuntar a cadenas válidas .
Original:
Both lhs and rhs should point to valid strings.
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Contenido

[editar] Parámetros

lhs, rhs -
punteros a las cadenas de bytes de terminación nula para comparar
Original:
pointers to the null-terminated byte strings to compare
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[editar] Valor de retorno

Valor negativo si lhs es menos rhs .
Original:
Negative value if lhs is less than rhs.
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0 lhs si es igual a' rhs .
Original:
0 if lhs is equal to rhs.
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Valor positivo si lhs es superior rhs .
Original:
Positive value if lhs is greater than rhs.
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[editar] Ejemplo

#include <vector>
#include <cstring>
#include <algorithm>
#include <iostream>
 
int main() 
{
    std::vector<const char*> cats {"Heathcliff", "Snagglepuss", "Hobbes", "Garfield"};
    std::sort(cats.begin(), cats.end(), [](const char *strA, const char *strB) {
        return std::strcmp(strA, strB) < 0;
    }); 
 
    for (const char *cat : cats) {
        std::cout << cat << '\n';
    }
}

Output:

Garfield
Heathcliff
Hobbes
Snagglepuss

[editar] Ver también

compara una cierta cantidad de caracteres de dos cadenas
Original:
compares a certain amount of characters of two strings
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(función) [edit]
compara dos buffers
Original:
compares two buffers
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(función) [edit]
compara dos cadenas de acuerdo a la localización actual
Original:
compares two strings in accordance to the current locale
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(función) [edit]
C documentation for strcmp