From: Malte Milatz <malteNOSPAM@...>
Date: 2006-02-28T19:13:42+09:00
Subject: Re: Is this Ruby warning making sense???

rubyrus schrieb:
> Does anyone think if this the warning makes any sense?
> 
> irb(main):002:0> puts "abc" if (a=true) (irb):2: warning: found = in
> conditional, should be == abc

Yes, because you are testing an expression (a=true) though it's obvious in 
this context that it will return true. This means that the `if` is 
meaningless for `puts "abc"`.

You won't get the warning when you write `if true`, however. In this case 
Ruby assumes that you wrote this intenionally, while in the above case, the 
programmer might simply have failed to write ==.

Malte