"SooHyoung Oh" <shoh@duonix.com> writes:

> Where can I get infomation about this? (ex: 'nnn' page on manual, articles
> or books)

I've not found any pointer that explains this specific point.

> # 1; 2;;
> Warning: this expression should have type unit.
> - : int = 2

If you decompose this expression, you have:
# 1;;
- : int = 1 <-- notice the type of '1' is 'int'
# 2;;
- : int = 2

In an expression 'expr1 ; expr2', expr1 should have type unit as its
result is not accessible to expr2.

Hope it helps,
d.
-- 
 David.Mentre@inria.fr
 Opinions expressed here are only mine.
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