Exercise 16 [Æñ°×ÅÙ 2]
º£¤Þ¤Ç¤Î¤³¤È¤ò±þÍѤ·¤Æ¡¤
¶õ¥ê¥¹¥È
[]¡¤±¦·ë¹ç¤ÎÆó¹à±é»»»Ò
::¡¤
match ¼°¤òƳÆþ¤·¤Æ¡¤¥ê¥¹¥È¤¬°·¤¨¤ë¤è¤¦¤Ë
ML4
¥¤¥ó¥¿¥×¥ê¥¿¤ò³ÈÄ¥¤»¤è¡¥
match¼°¤Î¹½Ê¸¤Ï¡¤
match <¼°1> with []→<¼°2>
| <¼±ÊÌ»Ò1> :: <¼±ÊÌ»Ò2>→<¼°1>
|
ÄøÅÙ¤ÎÀ©¸Â¤µ¤ì¤¿¤â¤Î¤Ç¤è¤¤¡¥
Exercise 20 [Æñ°×ÅÙ 2]
¤³¤³¤Þ¤ÇÍ¿¤¨¤¿¹½Ê¸µ¬Â§¤Ç¤Ï¡¤Objective Caml¤È¤Ï°Û¤Ê¤ê¡¤
if¡¤
let,
fun,
match ¼°¤Ê¤É¤Î¡Ö¤Ç¤¤ë¤À¤±±¦¤Ë±ä¤Ð¤·¤ÆÆÉ¤à¡×¹½Ê¸¤¬Æó¹à
±é»»»Ò¤Î±¦Â¦¤ËÍ褿¾ì¹ç¡¤³ç¸Ì¤¬É¬ÍפˤʤäƤ·¤Þ¤¦¡¥¤³¤Î³ç¸Ì¤¬É¬Íפʤ¯¤Ê
¤ë¤è¤¦¤Ê¹½Ê¸µ¬Â§¤òÍ¿¤¨¤è¡¥Î㤨¤Ð¡¤
1 + if true then 2 else 3;;
¤Ê¤É¤¬Àµ¤·¤¤¥×¥í¥°¥é¥à¤È¤·¤ÆÇ§¤á¤é¤ì¤ë¤è¤¦¤Ë¤»¤è¡¥