[C++ & C#] Miniscript aborts when _dateStr handles excessive number

[Withered-Flower-0422]

In cmd:

> _dateStr 1e20
PS C:\Users\13390>  // MiniScript aborts

In MM:

]_dateStr 1e14  // null
]_dateStr 1e15
7909-01-14 12:55:42  // wrong date
]_dateStr 1e16
2634-12-20 03:40:52  // wrong date

[marcgurevitx]

For C++, I think adding

if (errno == EOVERFLOW) return "";

after this line should fix it:

miniscript/MiniScript-cpp/src/DateTimeUtils.cpp

Line 34 in e85ec61

localtime_r(&t, &dateTime);

(As for C#, don't know...)

[marcgurevitx]

Seems like on Windows the problem was on this line (when _localtime64() returned NULL):

miniscript/MiniScript-cpp/src/DateTimeUtils.cpp

Line 16 in e85ec61

*buf = *_localtime64(timer);

Filed a PR

[JoeStrout]

Closing thanks to PR#162.

[JoeStrout]

Oops, that was a mistake. Meant to close #164. This one needs to stay open until we've addressed the same thing in the C# code.