memcmp

 

C

Lenguaje

Encabezados

Soporte de tipos

Utilidades del programa

Funciones variádicas

Gestión de errores

Gestión de memoria dinámica

Utilidades de fecha y hora

Biblioteca de cadenas de caracteres

Algoritmos

Números

Soporte de entrada/salida

Soporte de localización

Operaciones atómicas(C11)

Soporte de procesos(C11)

Especificaciones Técnicas

 

Biblioteca de cadenas

Cadenas de bytes

Cadenas multibyte

Cadenas anchas

 

Cadenas de bytes terminadas en nulo

Funciones
Manipulación de caracteres
isalnum isalpha islower isupper isdigit isxdigit isblank (C99)	iscntrl isgraph isspace isprint ispunct tolower toupper
Conversiones a formatos numéricos
atof atoiatolatoll (C99) strtolstrtoll (C99)	strtoulstrtoull (C99) strtofstrtodstrtold (C99)(C99) strtoimaxstrtoumax (C99)(C99)
Manipulación de cadenas
strcpystrcpy_s (C11)
strncpystrncpy_s (C11)
strcatstrcat_s (C11)
strncatstrncat_s (C11)
strxfrm
strdup (C23)
strndup (C23)
Examen de cadenas
strlenstrnlen_s (C11) strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtokstrtok_s (C11)
Manipulación de memoria
memchr
memcmp
memsetmemset_s (C11)
memcpymemcpy_s (C11)
memmovememmove_s (C11)
memccpy (C23)
Misceláneos
strerrorstrerror_sstrerrorlen_s (C11)(C11)

 

Definido en el archivo de encabezado <string.h>
int memcmp(constvoid* lhs, constvoid* rhs, size_t count );

Compara los personajes count primero de los objetos apuntados por lhs y rhs. La comparación se realiza lexicográfico .

Original:

Compares the first count characters of the objects pointed to by lhs and rhs. The comparison is done lexicographically.

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Parámetros

lhs, rhs	-	punteros a buffers de la memoria para comparar Original: pointers to the memory buffers to compare The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	número de bytes a examinar Original: number of bytes to examine The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

Valor negativo si lhs es menosrhs .

Original:

Negative value if lhs is less thanrhs.

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​0​lhs si es igual a'rhs .

Original:

​0​ if lhs is equal torhs.

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Valor positivo si lhs es superiorrhs .

Original:

Positive value if lhs is greater thanrhs.

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Ver también

strcmp	compara dos cadenas Original: compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
strncmp	compara una cierta cantidad de caracteres de dos cadenas Original: compares a certain amount of characters of two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
Documentación de C++ para memcmp