Pulseview hangs on startup in some strange situations in method pv:views:trace::View::calculate_tick_spacing.

I tried to debug it a little bit and here are my findings:

 - Running pulseview with LANG=C solves the problem for me
 - My regular LANG is cs_CZ.utf8 which triggers the bug but it seems that it is not the only thing.
 - Debugging the application in qt-creator hides the bug but using pure gdb reveals it. Maybe qt-creator is doing something with environment variables.


In the code, there is a loop

do {
...
} while (tick_period_width < label_width);

which never ends.

Difference in executions is for first tick_period=0.01 and scale_=0.001 where equation

tick_period_width = (tick_period / scale_).convert_to<double>();

the result is 10 for LANG=C and 9 for LANG=cs_CZ.utf8. I really don't understand the consequences and how can LANG influence this calculation. So my debugging ends here. The value of label_width is calculated correctly and the same in both cases.


pulseview: 0.4.2
libsigrok: 0.5.2
boost: 1.79.0
GCC: 11.3.0
qt: 5.15.5