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  1. /*
  2. FUNCTION
  3.         <<iswalnum>>---alphanumeric wide character test
  4.  
  5. INDEX
  6.         iswalnum
  7.  
  8. ANSI_SYNOPSIS
  9.         #include <wctype.h>
  10.         int iswalnum(wint_t <[c]>);
  11.  
  12. TRAD_SYNOPSIS
  13.         #include <wctype.h>
  14.         int iswalnum(<[c]>)
  15.         wint_t <[c]>;
  16.  
  17. DESCRIPTION
  18. <<iswalnum>> is a function which classifies wide-character values that
  19. are alphanumeric.
  20.  
  21. RETURNS
  22. <<iswalnum>> returns non-zero if <[c]> is a alphanumeric wide character.
  23.  
  24. PORTABILITY
  25. <<iswalnum>> is C99.
  26.  
  27. No supporting OS subroutines are required.
  28. */
  29. #include <_ansi.h>
  30. #include <wctype.h>
  31.  
  32. int
  33. _DEFUN(iswalnum,(c),wint_t c)
  34. {
  35.   return (iswalpha (c) || iswdigit (c));
  36. }
  37.  
  38.