Brian Dunning's FileMaker Custom Functions

IsPowerOfTwo ( number )

Returns True(1) if number is a power of two; otherwise returns False(0).

  Average rating: 4.0 (42 votes) Log in to vote

Michael Horak   Michael Horak - Show more from this author
*COMMENT Visual Realisation

Share on Facebook Share on Twitter

  Sample input:
IsPowerOfTwo ( 0 )
IsPowerOfTwo ( 1 )
IsPowerOfTwo ( 2 )
IsPowerOfTwo ( 3 )
IsPowerOfTwo ( 4 )
IsPowerOfTwo ( 5 )
...
IsPowerOfTwo ( 1023 )
IsPowerOfTwo ( 1024 )
IsPowerOfTwo ( 1025 )
  Sample output:
0
1
1
0
1
0
...
0
1
0

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

A recursive function to determine if number is a power of two. Returns True(1) if number is a power of two; otherwise returns False(0).

A power of two is 2 multiplied by itself any number of times. Note that 1 is a power of two, since 2^0=1.

 

Comments

Log in to post comments.

 

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

Support this website.

This library has been a free commmunity resource for FileMaker users and developers for 15 years. It receives no funding and has no advertisements. If it has helped you out, I'd really appreciate it if you could contribute whatever you think it's worth: