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ISWALNUM(3)             NetBSD Library Functions Manual            ISWALNUM(3)


NAME
iswalnum, iswalpha, iswblank, iswcntrl, iswdigit, iswgraph, iswlower, iswprint, iswpunct, iswspace, iswupper, iswxdigit -- wide character clas- sification utilities
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wctype.h> int iswalnum(wint_t wc); int iswalpha(wint_t wc); int iswblank(wint_t wc); int iswcntrl(wint_t wc); int iswdigit(wint_t wc); int iswgraph(wint_t wc); int iswlower(wint_t wc); int iswprint(wint_t wc); int iswpunct(wint_t wc); int iswspace(wint_t wc); int iswupper(wint_t wc); int iswxdigit(wint_t wc);
DESCRIPTION
The functions are character classification utility functions, for use with wide characters (wchar_t or wint_t). See the description of single- byte classification functions, like isalnum(3), for details.
RETURN VALUES
The functions return zero if the character tests false and return non- zero if the character tests true.
SEE ALSO
isalnum(3), isalpha(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3)
STANDARDS
The functions conform to ISO/IEC 9899:1999 (``ISO C99'').
CAVEATS
The argument to these functions must be WEOF or a valid wchar_t value with the current locale; otherwise, the result is undefined. NetBSD 9.1 December 22, 2000 NetBSD 9.1
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