toascii, __toascii

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Converts characters to 7-bit ASCII by truncation.

Syntax

int __toascii(  
   int c   
);  
#define toascii __toascii  

Parameters

c
Character to convert.

Return Value

__toascii converts the value of c to the 7-bit ASCII range and returns the result. There is no return value reserved to indicate an error.

Remarks

The __toascii routine converts the given character to an ASCII character by truncating it to the low-order 7 bits. No other transformation is applied.

The __toascii routine is defined as a macro unless the preprocessor macro _CTYPE_DISABLE_MACROS is defined. For backward compatibility, toascii is defined as a macro only when __STDC__ is not defined or is defined as 0; otherwise it is undefined.

Requirements

The toascii macro is a POSIX extension, and __toascii is a Microsoft-specific implementation of the POSIX extension. For additional compatibility information, see Compatibility in the Introduction.

See Also

Data Conversion
is, isw Routines
to Functions