[Bug 51139] Application T at X 2021 freezes when trying to transmit data to Elster (German Tax Application)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51139

--- Comment #17 from ms <mst.misc at arcor.de> ---
(In reply to Dieter Jurzitza from comment #16)
> thereby trying to avoid a divide - by - zero situation. However, this did
> not change anything in regards to the system behavior and the bug apparently
> remained "as is", wine crashing after messaging that a severe error had
> occured.

that is the right place, not sure why that doesn't work - maybe delta is still
too close to 0?

for the workaround, try either:

-    if (t < 0.0f || t > 1.0f)
+    if (isnan(t) || t < 0.0f || t > 1.0f)
         return TRUE;

or:

+   if (isnan(t)) { t = 0.0f; }
    if (t < 0.0f || t > 1.0f)
         return TRUE;

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