FT_BYTEOR()
Perform bit-wise OR on two ASCII characters (bytes)
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Syntax

FT_BYTEOR( <cByte1>, <cByte2> ) -> cNewByte

Arguments

<cByte1> and <cByte2> are characters from CHR(0) TO CHR(255).
May be passed in CHR() form, as character literals, or as
expressions evaluating to CHR() values.

Returns

Returns resulting byte, in CHR() form. If parameters are faulty,
returns NIL.

Description

Can be used for bit-wise byte manipulation. In effect, this is a
bit-by-bit OR operation. Equivalent to OR assembler instruction.

This function is presented to illustrate that bit-wise operations
are possible with Clipper code. For greater speed, write .C or
.ASM versions and use the Clipper Extend system.

Examples

This code performs a bit-wise OR on two bytes represented
by CHR(20) and CHR(10):

cNewByte := FT_BYTEOR( CHR(20), CHR(10) )
? ASC( cNewByte ) // result: 30
? cNewByte // result: non-printable character

For a demonstration of Clipper bit manipulations, compile and
link the program BITTEST.PRG in the Nanforum Toolkit source code.

Source: BYTEOR.PRG

Author: Forest Belt, Computer Diagnostic Services, Inc.