assignment operator(=) does not find a place in the list of operators

[sekaran6]

"The following operators are provided by loop:" +, -, /, *, %, >, <, >=, <=, ==, not, and, or.  But I can't find the assignment operator =  in this.Documentation reads "no loop operator ever mutates its operands. It simply reads and combines them to produce a third, resultant value. (the assign operator is an exception, but we'll deal with that later)."

Can you please throw more light on the issue ?

[Dhanji R. Prasanna]

The data structures section has some detailed examples of assignments:

http://looplang.org/doc/#maps

Also the local scope section:

http://looplang.org/doc/#localscope

What exactly are you looking for?

[sekaran6]

Thank you for kind clarification.I wanted to know whether a statement like x = x + 1 which is valid in other languages is possible in loop.I find such a statement to raise compile time exception.Is it connected with immutability in Loop ; something akin to val as against var in Scala ?

[Dhanji R. Prasanna]

You can do this inside a function. We are changing the syntax a bit from:

main ->

  x = x + 1

  where

    x = 1

to:

main ->

  x = 1

  x = x + 1

It depends if you are using the downloaded binary or building from source (newer syntax).