[Why3-club] Difference between let and function?

Yannick Moy moy at adacore.com
Thu Aug 25 18:23:04 CEST 2016


-- David MENTRE (2016-08-25)
> Hello,
> 
> How would you define the difference in WhyML between a "let" and a
> "function"?
> 
> As far as I understood it, "function" is pure logical function, without
> side effect. Its body is visible and can be expanded. On the contrary,
> "let" is an "opaque" function definition only seen through its contract.
> It can have side effects.
> 
> Am I correct?

AFAIK, yes.
--
Yannick Moy, Senior Software Engineer, AdaCore



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