CTYPE

Section: C Library Functions (3)
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BSD mandoc
 

NAME

isalpha isupper islower isdigit isxdigit isalnum isspace ispunct isprint isgraph iscntrl isblank isascii toupper tolower toascii - character classification macros  

SYNOPSIS

Fd #include <ctype.h> Fa int c
Fn isalpha c Fn isupper c Fn islower c Fn isdigit c Fn isxdigit c Fn isalnum c Fn isspace c Fn ispunct c Fn isprint c Fn isgraph c Fn iscntrl c Fn isblank c Fn isascii c Fn toupper c Fn tolower c Fn toascii c  

DESCRIPTION

The above macros perform character tests and conversions on the integer c

See the specific manual pages for more information.  

SEE ALSO

isalpha(3), isupper(3), islower(3), isdigit(3), isxdigit(3), isalnum(3), isspace(3), ispunct(3), isprint(3), isgraph(3), iscntrl(3), isblank(3), isascii(3), toupper(3), tolower(3), toascii(3), ascii(7)  

STANDARDS

These functions, with the exception of Fn isblank and Fn toascii , conform to St -ansiC .


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
STANDARDS

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Time: 02:53:28 GMT, December 08, 2024