Function SortUDF

source/script2.cpp:6337–6363

}

int SortUDF(const void *a1, const void *a2)
// See comments in prior function for details.
{
	if (!g_SortFuncResult || g_SortFuncResult == EARLY_EXIT)
		return 0;

	// The following isn't necessary because by definition, the current thread isn't paused because it's the
	// thing that called the sort in the first place.
	//g_script.UpdateTrayIcon();

	LPTSTR aStr1 = *(LPTSTR *)a1;
	LPTSTR aStr2 = *(LPTSTR *)a2;
	ExprTokenType param[] = { aStr1, aStr2, __int64(aStr2 - aStr1) };
	__int64 i64;
	g_SortFuncResult = CallMethod(g_SortFunc, g_SortFunc, nullptr, param, _countof(param), &i64);
	// An alternative to g_SortFuncResult using 'throw' to abort qsort() produced slightly
	// smaller code, but in release builds the program crashed with code 0xC0000409 and the
	// catch() block never executed.

	int returned_int;
	if (i64)  // Maybe there's a faster/better way to do these checks. Can't simply typecast to an int because some large positives wrap into negative, maybe vice versa.
		returned_int = i64 < 0 ? -1 : 1;
	else  // The result was 0 or "".  Since returning 0 would make the results less predictable and doesn't seem to have any benefit,
		returned_int = aStr1 < aStr2 ? -1 : 1; // use the relative positions of the items as a tie-breaker.

	return returned_int;
}