Custom Query (1030 matches)

Environment: CCL version 1.11-r16635 64bit under Windows 10 64bit

Possible issue: The Format function's F directive's k parameter fails to move the decimal point of the floating point argument to the right when preceded by a tilde and 2 consecutive commas. This fails in Clozure, but works in SBCL v1.3.15 64bit and in Clisp 2.49 when tested.

Example1: The Clozure prompt is "?".

? (format t "10 Percent ~,,2f ~%" .10)
10 Percent 0.1
NIL

Example2: The SBCL prompt is an asterisk "*". Clisp produces the same result.

* (format t "10 Percent ~,,2f ~%" .10)
10 Percent 10.0
NIL

Other scenarios seem to work fine...

Example3: Clozure produces the same result as SBCL Example4 if a 1 is entered for the d parameter (decimal digits) between the two commas.

? (format t "10 Percent ~,1,2f ~%" .10)
10 Percent 10.0
NIL

Example4: SBCL produces the same result as Clozure Example3 when entering a 1 between the two commas.

* (format t "10 Percent ~,1,2f ~%" .10)
10 Percent 10.0
NIL

Example5: Clozure "?" & SBCL "*" produce the same results when entering a 0 between the two commas.

? (format t "10 Percent ~,0,2f ~%" .10)
10 Percent 10.
NIL

* (format t "10 Percent ~,0,2f ~%" .10)
10 Percent 10.
NIL

Reference:

CLHS: 22.3.3.1 Tilde F: Fixed-Format Floating-Point.

"The full form is ~w,d,k,overflowchar,padcharF. The parameter w is the width of the field to be printed; d is the number of digits to print after the decimal point; k is a scale factor that defaults to zero."

​http://www.lispworks.com/documentation/HyperSpec/Body/22_cca.htm

It's annoying that I have to log back into the Trac site all the time. It would be nice if the login page had an option to keep you logged in.

Although it's implementation dependent what initial value *print-pprint-dispatch* is, NIL is rather inconvenient, since it causes set-pprint-dispatch without explicit table to error.