qualifications in prototypes (was Re: Problems with IBM RS6000 C compiler)

[Richard Tobin]

>>[Can you pass an unqualified `char *' to a function whose prototype declares
>>a parameter of type `char const *'?]

The idea (presumably) is that declaring a parameter `char const *'
doesn't mean that the function *requires* the argument to be constant,
but rather promises not to change it.  Similarly with assignement; you
can assign something to a variable that promises to be more careful
with it, but need a cast if the variable might be less careful.

-- Richard
-- 
Richard Tobin,                       JANET: R.Tobin at uk.ac.ed             
AI Applications Institute,           ARPA:  R.Tobin%uk.ac.ed at nsfnet-relay.ac.uk
Edinburgh University.                UUCP:  ...!ukc!ed.ac.uk!R.Tobin