ACos() bug

[Spiff59]

The x86 version of the ACos() function seems to go south after six calls. The example below returns the value of pi for six calls, and then returns the string "-1.#IND" on all subsequent calls. The bug exhibits itself both within SciTE and in "compiled" executables. Beta 3.3.7.23 behaves identically.

#include <Array.au3>
Global $result[11]

For $x = 1 to 10
	$result[$x] = ACos(-1)
Next
_ArrayDisplay($result)

[anonymous]

This happens ONLY with ACos(-1). I also tested 0, 0.1 and 1 without this problem.
If you call ACos() with another value than -1 after the error occurs, it works again for one call.

#include <Array.au3>
Global $result[11]

For $x = 1 to 10
	$result[$x] = ACos(-1)
	If $x = 6 Then ACos(0) ; reset error for next call
Next
_ArrayDisplay($result)

[Valik]

Fixed by revision [6733] in version: 3.3.9.0