chickadee » fx-utils

fx-utils

Documentation

Additional fixnum routines.

Fixnum Computations

Usage

(import fx-utils)

N N1 ... X1 ... Y1 ... below are fixnum.

fxrandom

fxrandom #!optional Nprocedure

N fixnum limit.

fxlog2

fxlog2 Nprocedure

Returns index of highest bit set, so N is treated as unsigned.

fxpow2log2

fxpow2log2 Nprocedure

Returns fixnum 2^N.

fxdistance

fxdistance X1 Y1 X2 Y2procedure

Pythagorean distance between the points X1 Y1 and X2 Y2.

fxdistance*

fxdistance* X1 Y1 X2 Y2procedure

Pythagorean distance, inaccurate but useful for relative comparisons.

fxquo-and-mod

fxquo-and-mod N Dprocedure

Returns the quotient & remainder values for fixnums D & D.

fxmax-and-min

fxmax-and-min N ...procedure

Returns the maximum & minimum values for the fixnums N ....

Fixnum Inlines

Usage

(import fx-inlines)

N N1 ... X1 ... Y1 ... below are fixnum.

fxzero?

fxzero? Nprocedure

fxpositive?

fxpositive? Nprocedure

fxcardinal?

fxcardinal? Nprocedure

fxnegative?

fxnegative? Nprocedure

fxclosed-right?

fxclosedr?

fxclosed-right? L N Hprocedure
fxclosedr? L N Hprocedure

Returns N in (L .. H].

N, L & H are fixnum low & high limits.

fxclosed?

Returns N in [L .. H].

fxclosed? L N Hprocedure

N, L & H are fixnum low & high limits.

fxclosed-left?

fxclosedl?

Returns N in [L .. H).

fxclosed-left? L N Hprocedure
fxclosedl? L N Hprocedure

N, L & H are fixnum low & high limits.

fxadd1

fxadd1 Nprocedure

fxsub1

fxsub1 Nprocedure

fxabs

fxabs Nprocedure

fxsqr

fxsqr Nprocedure

fxcub

fxcub Nprocedure

Author

Kon Lovett

Version history

4.0.0
C5 port.

License

This code is in the public domain.

Contents »