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islower

De cppreference.com
< c‎ | string‎ | byte

 
 
 
Chaînes d'octets à zéro terminal
Fonctions
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Functions
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Manipulation caractère
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Character manipulation
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Conversion aux formats numériques
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Conversions to numeric formats
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La manipulation de chaînes
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String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
Examen chaîne
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String examination
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Manipulation de la mémoire
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Memory manipulation
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memchr
memcmp
memset
memcpy
memmove
Divers
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Miscellaneous
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strerror
 
Defined in header <ctype.h>
int islower( int ch );

Vérifie si le caractère donné est un caractère minuscule en fonction de la localisation courante. Dans localisation courante, islower retourne true uniquement pour les lettres minuscules (abcdefghijklmnopqrstuvwxyz) .

Si islower retourne true, il est garanti que iscntrl, isdigit, ispunct et isspace retournent false pour le même caractère dans la même langue.

[modifier] Paramètres

ch - caractère

[modifier] Retourne la valeur

Valeur non nulle (true) si le caractère est une lettre minuscule, 0 (false) sinon.

[modifier] Voir aussi

vérifie si un caractère large est un caractère en minuscule
Original:
checks if a wide character is an lowercase character
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(fonction) [edit]
C++ documentation for islower
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