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ISRUNE(3)                BSD Library Functions Manual                ISRUNE(3)

     isrune -- valid character test

     Standard C Library (libc, -lc)

     #include <ctype.h>

     isrune(int c);

     The isrune() function tests for any character that is valid in the current character set.  In the ASCII
     character set, this is equivalent to isascii().

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

     ctype(3), isascii(3), iswrune(3), ascii(7), isalnum_l

     The isrune() function appeared in 4.4BSD.

BSD                             March 30, 2004                             BSD

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