man.bsd.lv manual page server

Manual Page Search Parameters

ISRUNE(3) Library Functions Manual ISRUNE(3)

isrune, isrune_lvalid character test

library “libc”

#include <ctype.h>

int
isrune(int c);

#include <xlocale.h>

int
isrune_l(int c, locale_t locale);

The () and () functions test for any character that is valid in the current character set. In the ASCII character set, this is equivalent to ().

The _l-suffixed version takes an explicit locale argument, whereas the non-suffixed version uses the current global or per-thread locale.

The isrune() and isrune_l() functions return zero if the character tests false and returns non-zero if the character tests true.

ctype(3), ctype_l(3), isascii(3), iswrune(3), xlocale(3), ascii(7)

The isrune() function appeared in 4.4BSD.

December 25, 2013 DragonFly-5.6.1