diff options
Diffstat (limited to 'lib/libc/locale')
| -rw-r--r-- | lib/libc/locale/iswalnum.3 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/libc/locale/iswalnum.3 b/lib/libc/locale/iswalnum.3 index 6d3e98d..86b04a7 100644 --- a/lib/libc/locale/iswalnum.3 +++ b/lib/libc/locale/iswalnum.3 @@ -105,15 +105,16 @@ .Ft int .Fn iswxdigit "wint_t wc" .Sh DESCRIPTION -The functions are character classification utility functions, +The above functions are character classification utility functions, for use with wide characters .Po .Fa wchar_t or .Fa wint_t .Pc . -See description for singlebyte classification functions, like -.Xr isalnum 3 , +See the description for the similarly-named single byte classification +functions (like +.Xr isalnum 3 ), for details. .Sh RETURN VALUES The functions return zero if the character tests false and @@ -155,5 +156,7 @@ which are .Fx extensions. .Sh CAVEATS -The argument to these functions must be WEOF or valid wchar_t -value with current locale; otherwise, the result is undefined. +The result of these functions is undefined unless +the argument is WEOF or a valid +.Vt wchar_t +value for the current locale. |
