Folks,
I think I isolated the rounding (?) issue leading to the misplaced note
head in https://sourceforge.net/p/testlilyissues/issues/5303/
Please forgive the horrible C/C++ jumble - it's been quite long since I
did this kind of stuff and usually only ever wrote vanilla C:
#include <stdio.h>
double a = -0x1.7ffffffffffffp+1;
int main(void) {
printf("%a, as float: %f, as int: %d\n", a, a, int (a));
}
Compiled with gcc (4.8.5, 5.5.0, 6.5.0, 7.4.0 on my x86_64) this displays:
-0x1.7ffffffffffffp+1, as float: -3.000000, as int: -2
I'm not familiar with technicalities involved and thought I'd ask here
because I'm sure somebody here (David K.?) will be able to explain
what's happening here much faster than I could ever hope by reading up
on float representations, rounding issues, etc.
Best
Lukas
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