OCaml Common Pitfalls Forgetting parentheses around function arguments
Example
A common mistake is to forget surrounding compound function arguments with parentheses, leading to type errors.
# string_of_int 1+1;;
Error: This expression has type string but an expression was expected of type int
This is because of the precedence. In fact, the above evaluates to
# (string_of_int 1) + 1;;
which is wrong. A correct syntax would be
# string_of_int (1+1);;
- : string = "2"
