Indicates if a wide character is classed as an alphabetic character
in the program's current locale.
Format
#include <wctype.h> (ISO C)
#include <wchar.h> (XPG4)
int iswalpha (wint_t wc);
Arguments
- wc
- An object of type wint_t. The value of wc must be
representable as a wchar_t in the current locale, or must equal
the value of the macro WEOF. If it has any other value, the behavior
is undefined.
Return Values
| nonzero | If alphabetic. |
| 0 | If not alphabetic. |
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