__isascii, iswascii

Determines whether a particular character is an ASCII character.

int __isascii( 
   int c 
);
int iswascii( 
   wint_t c 
);

Parameters

• c
  Integer to test.

Return Value

Each of these routines returns nonzero if c is a particular representation of an ASCII character. __isascii returns a nonzero value if c is an ASCII character (in the range 0x00 – 0x7F). iswascii returns a nonzero value if c is a wide-character representation of an ASCII character. Each of these routines returns 0 if c does not satisfy the test condition.

Generic-Text Routine Mappings

Requirements

.NET Framework Equivalent

System::Char::IsLetter

See Also

Concepts

Character Classification

Locale

is, isw Routines