d7/d0d/ctype_8h_source.html

/* SPDX-License-Identifier: GPL-2.0+ */


#ifndef __CTYPE_H__

#define __CTYPE_H__


#ifdef __cplusplus

extern "C" {

#endif// __cplusplus


int isalnum(int c);


int isalpha(int c);


int isascii(int c);


int isblank(int c);


int iscntrl(int c);


int isdigit(int c);


int isgraph(int c);


int islower(int c);


int isprint(int c);


int ispunct(int c);


int isspace(int c);


int isupper(int c);


int isxdigit(int c);


int toascii(int c);


int tolower(int c);


int toupper(int c);


#ifdef __cplusplus

}

#endif// __cplusplus


#endif /* __CTYPE_H__ */

iscntrl
int iscntrl(int c)
Check if the given character is a control character.
Definition ctype.c:25

isalpha
int isalpha(int c)
Check if the given character is alphabetic.
Definition ctype.c:9

isdigit
int isdigit(int c)
Check if the given character is a digit.
Definition ctype.c:29

isgraph
int isgraph(int c)
Check if the given character is printable and not a space.
Definition ctype.c:33

isspace
int isspace(int c)
Check if the given character is a whitespace character.
Definition ctype.c:50

islower
int islower(int c)
Check if the given character is a lowercase alphabetic character.
Definition ctype.c:37

isprint
int isprint(int c)
Check if the given character is a printable character (including spaces).
Definition ctype.c:42

toupper
int toupper(int c)
Convert the given character to uppercase.
Definition ctype.c:72

tolower
int tolower(int c)
Convert the given character to lowercase.
Definition ctype.c:66

isupper
int isupper(int c)
Check if the given character is an uppercase alphabetic character.
Definition ctype.c:54

isxdigit
int isxdigit(int c)
Check if the given character is a hexadecimal digit.
Definition ctype.c:58

isalnum
int isalnum(int c)
Check if the given character is alphanumeric.
Definition ctype.c:21

isascii
int isascii(int c)
Check if the given character is a valid ASCII character.
Definition ctype.c:13

toascii
int toascii(int c)
Convert the given character to its ASCII equivalent.
Definition ctype.c:62

isblank
int isblank(int c)
Check if the given character is a blank space.
Definition ctype.c:17

ispunct
int ispunct(int c)
Check if the given character is a punctuation character.
Definition ctype.c:46