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std::isprint

De cppreference.com
< cpp‎ | string‎ | byte

 
 
Strings biblioteca
Terminadas en nulo
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Null-terminated strings
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Cadenas de bytes
Multibyte cuerdas
Cadenas anchas
Clases
Original:
Classes
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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
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String manipulation
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Cadena examen
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String examination
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Memoria manipulación
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Memory manipulation
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Varios
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Miscellaneous
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Definido en la cabecera <cctype>
int isprint( int ch );
Comprueba si el carácter dado se pueden imprimir, i. e. o bien es un número (0123456789), una letra mayúscula (ABCDEFGHIJKLMNOPQRSTUVWXYZ), una letra minúscula (abcdefghijklmnopqrstuvwxyz), un personaje puntuacion (!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~), o espacio, o cualquier carácter imprimible clasificada como por la actual configuración regional C. .
Original:
Checks if the given character can be printed, i. e. it is either a number (0123456789), an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), a lowercase letter (abcdefghijklmnopqrstuvwxyz), a punctuation character(!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~), or space, or any character classified as printable by the current C locale.
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Contenido

[editar] Parámetros

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

Valor distinto de cero (true) si el carácter se puede imprimir, 0 (false) de lo contrario .
Original:
Non-zero value (true) if the character can be printed, 0 (false) otherwise.
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[editar] Ejemplo

#include <iostream>
#include <cctype>
#include <clocale>
 
int main()
{
    char c = '\xa0'; // the non-breaking space in ISO-8859-1
 
    std::cout << "isprint(\'\\xa0\', default C locale) returned "
               << std::boolalpha << (bool)std::isprint(c) << '\n';
 
    std::setlocale(LC_ALL, "en_GB.iso88591");
    std::cout << "isprint(\'\\xa0\', ISO-8859-1 locale) returned "
              << std::boolalpha << (bool)std::isprint(c) << '\n';
}

Salida:

isprint('\xa0', default C locale) returned false
isprint('\xa0', ISO-8859-1 locale) returned true

[editar] Ver también

Comprueba si un carácter está clasificado como impresora por una configuración regional
Original:
checks if a character is classified as printable by a locale
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(plantilla de función) [editar]
Comprueba si un carácter ancho es un personaje de la impresión
Original:
checks if a wide character is a printing character
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(función) [editar]
Documentacion C de isprint
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