FT_BITSET

FT_BITSET()
 Set selected bit in a byte

 Syntax

      FT_BITSET( <cByte>, <nBitPos> ) -> cByte

 Arguments

     <cByte> is a character from CHR(0) to CHR(255).

     <nBitPos> is a number from 0 to 7 conforming to standard right-to-left
     bit numbering convention and representing the position of the bit
     within the byte.

 Returns

     Returns new byte, with designated bit set.  If parameters are faulty,
     returns NIL.

 Description

     In effect, ORs argument byte with a byte that has only the target bit
     set.  If bit is already set, it remains set.
     Note: Calls FT_ISBIT() which is also in this Library.

     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 would set bit 4 in a byte represented by CHR(107):

          cNewbyte := FT_BITSET( CHR(107), 4 )
          ? ASC( cNewbyte )             // result: 123
          ? cNewbyte                    // result: '{'

     This code would set bit 5 in the byte represented by the letter 'A'.

          ? FT_BITSET( 'A', 5 )         // result: 'a'
                                        // bit 5 set

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

 Source: BITSET.PRG

 Author: Forest Belt, Computer Diagnostic Services, Inc.

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See Also: FT_BITCLR() FT_ISBIT()