#942 string to wstr conversion fails for invalid multibyte characters

[Jeff Marshall]

Forum report: WSTR Crash on linux 32-bit

Example:

dim as string s = chr(&hC4 , &hEE)

? lcase(Wstr(s))

Is due to unhandled error condition of mbstowcs() in the rtlib

[Jeff Marshall]

I thought this would have been a quick fix but it failed the test-suite.
attempted fix: [bd600eb442e110a9e6a001e68fb27a8a33fdc4be]
reverted: [ca8c993aac43971dc2539c5d11f888fdc7590522]

[Jeff Marshall]

I see now. mbstowcs() behaves differently for me on windows versus linux.

[Jeff Marshall]

fixed in fbc 1.09.0
commit: [95fd0fab9018436cf6b8283dbc6248534367a9b8]

There are differences between windows and linux on how invalid mutibyte chars are handled