I've run into this issue before, in a C++ class. I want a member foo to act in-place or return a result. What I really want is a succinct way to modify a function, much like + and += are related, as is any @ to its @=.

So, given x.foo() or foo(x), have a universal way to add the "x=" at the beginning. Maybe x.!foo() can mean "do foo in place on x".

I'm not proposing actual (good) syntax; just pointing out the idea. What we really want is a succinct "in place" modifier.

—John

In reply to Re: DWIM Part Nineteen: Unary Operators in Void Context by John M. Dlugosz
in thread DWIM Part Nineteen: Unary Operators in Void Context by CheeseLord

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