Espacios de nombres
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isalpha

De cppreference.com
< c‎ | string‎ | byte

 
 
 
Terminadas en nulo de bytes
Funciones
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Functions
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De manipulación de caracteres
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Character manipulation
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Las conversiones a formatos numéricos
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Conversions to numeric formats
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Cadena de manipulación
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String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
Cadena examen
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String examination
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Memoria manipulación
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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 <ctype.h>
int isalpha( int ch );
Comprueba si el carácter dado es un carácter alfabético, es decir, ya sea una letra mayúscula (ABCDEFGHIJKLMNOPQRSTUVWXYZ), o una letra minúscula (abcdefghijklmnopqrstuvwxyz) .
Original:
Checks if the given character is an alphabetic character, i.e. either an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), or a lowercase letter (abcdefghijklmnopqrstuvwxyz).
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[editar] Parámetros

ch -
carácter
Original:
character
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[editar] Valor de retorno

Valor distinto de cero (true) si el carácter es un carácter alfabético, 0 (false) de otra manera .
Original:
Non-zero value (true) if the character is an alphabetic character, 0 (false) otherwise.
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[editar] Ver también

Comprueba si un carácter ancho es alfabético
Original:
checks if a wide character is alphabetic
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(función) [edit]
C++ documentation for isalpha
ASCII values
(hex)
characters

iscntrl
iswcntrl

isprint
iswprint

isspace
iswspace

isblank
iswblank

isgraph
iswgraph

ispunct
iswpunct

isalnum
iswalnum

isalpha
iswalpha

isupper
iswupper

islower
iswlower

isdigit
iswdigit

isxdigit
iswxdigit

0 - 8 0x00-0x08 control codes (NUL, etc.) ≠0 0 0 0 0 0 0 0 0 0 0 0
9 0x09 tab (\t) ≠0 0 ≠0 ≠0 0 0 0 0 0 0 0 0
10 - 13 0x0A-0x0D whitespaces (\n,\v,\f,\r) ≠0 0 ≠0 0 0 0 0 0 0 0 0 0
14 - 31 0x0E-0x1F control codes ≠0 0 0 0 0 0 0 0 0 0 0 0
32 0x20 space 0 ≠0 ≠0 ≠0 0 0 0 0 0 0 0 0
33 - 47 0x21-0x2F !"#$%&'()*+,-./ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
48 - 57 0x30-0x39 0123456789 0 ≠0 0 0 ≠0 0 ≠0 0 0 0 ≠0 ≠0
58 - 64 0x3a-0x40 :;<=>?@ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
65 - 70 0x41-0x46 ABCDEF 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 ≠0
71 - 90 0x47-0x5A GHIJKLMNOPQRSTUVWXYZ 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 0
91 - 96 0x5B-0x60 [\]^_` 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
97 -102 0x61-0x66 abcdef 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 ≠0
103-122 0x67-0x7A ghijklmnopqrstuvwxyz 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 0
123-126 0x7B-0x7E {|}~ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
127 0x7F backspace character (DEL) ≠0 0 0 0 0 0 0 0 0 0 0 0