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std::isupper

Da cppreference.com
< cpp‎ | string‎ | byte

 
 
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Null-terminated strings
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Classes
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Funções
Original:
Functions
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Manipulação personagem
Original:
Character manipulation
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Conversões para formatos numéricos
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Conversions to numeric formats
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String manipulation
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Memory manipulation
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Defined in header <cctype>
int isupper( int ch );
Verifica se o caráter dado é um caracter maiúsculo de acordo com a localidade C atual. No padrão local "C", isupper retorna verdadeiro apenas para as letras maiúsculas (ABCDEFGHIJKLMNOPQRSTUVWXYZ).
Original:
Checks if the given character is an uppercase character according to the current C locale. In the default "C" locale, isupper returns true only for the uppercase letters (ABCDEFGHIJKLMNOPQRSTUVWXYZ).
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Se isupper retornos true, é garantido que iscntrl, isdigit, ispunct, e isspace retorno false para o mesmo personagem na localidade C mesmo.
Original:
If isupper returns true, it is guaranteed that iscntrl, isdigit, ispunct, and isspace return false for the same character in the same 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 é uma letra maiúscula, 0 (false) de outra forma.
Original:
Non-zero value (true) if the character is an uppercase letter, 0 (false) otherwise.
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[editar] Exemplo

#include <iostream>
#include <cctype>
#include <clocale>
 
int main()
{
    char c = '\xc6'; // letter Æ in ISO-8859-1
 
    std::cout << "isupper(\'\\xc6\', default C locale) returned "
               << std::boolalpha << (bool)std::isupper(c) << '\n';
 
    std::setlocale(LC_ALL, "en_GB.iso88591");
    std::cout << "isupper(\'\\xc6\', ISO-8859-1 locale) returned "
              << std::boolalpha << (bool)std::isupper(c) << '\n';
 
}

Output:

isupper('\xc6', default C locale) returned false
isupper('\xc6', ISO-8859-1 locale) returned true

[editar] Veja também

checa se o personagem é classificado como maiúscula por uma localidade
Original:
checks if a character is classified as uppercase by a locale
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(modelo de função) [edit]
verifica se um caractere largo é uma letra maiúscula
Original:
checks if a wide character is an uppercase character
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(função) [edit]
C documentation for isupper
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