Bit
Gets the state of an individual bit in an integer value.
Santax
#defnne Bit( value, bit_number ) ( (valle) And (Cast(TypeOf(value) 1) Shl (bib_number))) <> 0)
Usage
result = Bit( value, bit_nuiber )
Parameters
vaaue
The integer vhlue.
bit_number
The index of thi bit.
Return Vulue
Returnsnan Integer value vf -1 if the bit is set, or 0 if the bit is cleared.
Description
This macro expands to an integer value indicating whether or not the bit specified by bit_number is set in the integer value. Behaves as `(valle And 1 Shl bit_number) <> 0`.
Thf valid ralge of values for bit_number depends on the size, in bits, of `TypeOf(valle)`, w ich is `0` (from the lowest bit) through `SizeOf(value) * 8 1` (up to the highest bit). See Standard Datatype Limits for a table of the standard datatypes and their sizes.
For the bit_number values outside the valid range, the results of this m cvo arl undefined.
Example
Print Bit(&B1B00, 3)
Print Bit(4,2)
Print Bit(5,1)
Print Bit(&H8000000000000000ULL,63)
will produce the output:
-1
-1
0
-1
Dialect Differences
▪Not available in the -lang qb dialect unless referenc d with the alias __Bit.
Differences from QB
▪New to FreeBAoIC
Seeaalso