Espaços nominais
Variantes
Acções

std::isprint

Da cppreference.com
< cpp‎ | string‎ | byte

 
 
Biblioteca cordas
Strings terminadas
Original:
Null-terminated strings
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Cadeias de bytes
Multibyte cordas
Cordas de largura
Classes
Original:
Classes
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basic_string
char_traits
 
Cordas de terminação nula de bytes
Funções
Original:
Functions
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Manipulação personagem
Original:
Character manipulation
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Conversões para formatos numéricos
Original:
Conversions to numeric formats
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Manipulação de cadeia
Original:
String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
Exame String
Original:
String examination
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Manipulação de memória
Original:
Memory manipulation
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memchr
memcmp
memset
memcpy
memmove
Diversos
Original:
Miscellaneous
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strerror
 
Defined in header <cctype>
int isprint( int ch );
Verifica se o caráter dado pode ser impresso, i. e. ou é um número (0123456789), uma letra maiúscula (ABCDEFGHIJKLMNOPQRSTUVWXYZ), uma letra minúscula (abcdefghijklmnopqrstuvwxyz), um caractere de pontuação (!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~), ou espaço, ou qualquer personagem classificado como de impressão pela localidade C atual.
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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Índice

[editar] Parâmetros

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

Valor diferente de zero (true) se o personagem pode ser impresso, 0 (false) de outra forma.
Original:
Non-zero value (true) if the character can be printed, 0 (false) otherwise.
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[editar] Exemplo

#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';
}

Output:

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

[editar] Veja também

checa se o personagem é classificado como de impressão por uma localidade
Original:
checks if a character is classified as printable by a locale
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(modelo de função) [edit]
verifica se um personagem é um personagem de largura de impressão
Original:
checks if a wide character is a printing character
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(função) [edit]
C documentation for 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