wcstombs_s wide string conversion with multibyte chars and locale + c...

 cl.exe 

Current locale: de-DE
Original string: José
	ret = 0, bytesConverted = 6, output = José
	concatenated = José-concatenated
Original string: 測試
	ret = 0, bytesConverted = 7, output = 測試
	concatenated = 測試-concatenated
Original string: αβ
	ret = 0, bytesConverted = 5, output = αβ
	concatenated = αβ-concatenated
Original string: �	ret = 42, bytesConverted = 0, output = 
	concatenated = -concatenated