Re: calculation in scheme causes "assertion failed" as of Ly 2.25.11

[Aaron Hill]

On 2024-04-11 10:12 am, K. Blum via bug-lilypond wrote:
> Starte lilypond.exe 2.25.14 [mwe scheme.ly]...
> »C:/Users/Flower/Desktop/mwe scheme.ly« wird verarbeitet
> Analysieren.../home/lily/lilypond-2.25.14/release/binaries/mingw/dependencies/src/guile-3.0.9/libguile/integers.c:115:
> assertion failed
> Wurde mit dem Return-Code 3 beendet.


Assertion [1] is from the negative_long function in integers.c:

 112 static inline long
 113 negative_long (unsigned long mag)
 114 {
 115   ASSERT (mag <= (unsigned long) LONG_MIN);
 116   return ~mag + 1;
 117 }

[1]: 
https://git.savannah.gnu.org/gitweb/?p=guile.git;a=blob;f=libguile/integers.c;h=cc62d1c7847a0eef47b86e340295f43df01a9f50;hb=9b20ca275dba758a194073936cde7c95311bd51e#l115


Seems to be something specific to the Windows build.  I could not 
reproduce the failing assertion on the Linux builds of LilyPond also 
running Guile 3.0.9.  I could reproduce it with the 2.25.14 Windows 
build using scheme-sandbox.ly as well as using the -e command-line 
option:

  lilypond -e "(let* ((a 1) (b -3) (c (+ b 0.3))) (> (- b (/ a 2)) c))"


-- Aaron Hill