The Format function's F directive's k parameter fails when preceded by a tilde and 2 commas

[ninejaguar]

Copied from Trac Issue#1416 per request from rme. In addition, see earlier Trac Issue#1297. Links are at the bottom of this Issue.

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 "?". Note the issue is that 0.1 is returned rather than 10.0

? (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

Original Trac Issue Tickets:
https://trac.clozure.com/ccl/ticket/1297
https://trac.clozure.com/ccl/ticket/1416

[xrme]

fixed in c80d02b and cherry-picked to 1.11 in 1de27e0

[ninejaguar]

Great job. Thank you. = Appi =

…

On Wed, Mar 28, 2018 at 2:27 PM, R. Matthew Emerson < ***@***.***> wrote: Closed #51 <#51>. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AcJTWNHlSU8UDo_iTTlzcfg6diQwT2o7ks5tjAAqgaJpZM4N9Wu9> .

[ninejaguar]

Great job. Thank you. = Appi =

…

On Wed, Mar 28, 2018 at 2:27 PM, R. Matthew Emerson < ***@***.***> wrote: fixed in c80d02b <c80d02b> and cherry-picked to 1.11 in 1de27e0 <1de27e0> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AcJTWN47v4GRveecpN2--c1rIon_ru37ks5tjAApgaJpZM4N9Wu9> .