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Re:Hey, C Is a Functional Language Too by fauigerzigerk on Friday November 02, 2012 @09:28AM (#4732499)
I don't think that solves the problem. Whatever fixed stack size you choose, you still cannot write a program that determines the size of the lists at runtime. A Turing complete system would have to be able to do that.

The only way I see is to allocate (almost) the entire machine memory to the stack, create one giant array in that chunk of memory and then put all lists in that single array. That's tantamount to reimplementing malloc on the stack.

Re:Hey, C Is a Functional Language Too by charliesome on Friday November 02, 2012 @10:08AM (#4732651)
Any physical machine cannot be Turing complete because it has a finite amount of RAM.
Re:Hey, C Is a Functional Language Too by fauigerzigerk on Friday November 02, 2012 @10:18AM (#4732681)
Sure, but we're talking about whether or not this particular style of C can be Turing complete and I'm not sure it is, even on a machine with an infinite amout of RAM.
Re:Hey, C Is a Functional Language Too by jsight on Friday November 02, 2012 @10:31AM (#4732741)
A machine with an infinite amount of RAM can have an infinite stack size.
Re:Hey, C Is a Functional Language Too by fauigerzigerk on Friday November 02, 2012 @10:35AM (#4732767)
C arrays that live on the stack have to be created with a constant size (at least before C99). It's a limitation of the language regardless of any machine or stack size.
Re:Hey, C Is a Functional Language Too by Johngibb on Friday November 02, 2012 @10:49AM (#4732854)
If we're going to grant that a machine can have infinite ram, surely we can grant that a spec of C can have infinite stack allocated arrays... :)
Re:Hey, C Is a Functional Language Too by sp332 on Friday November 02, 2012 @10:42AM (#4732819)
That's already been granted in this argument. The question now is, given an infinite stack, is this programming style Turing-complete?
Re:Hey, C Is a Functional Language Too by Evbn on Friday November 02, 2012 @10:42AM (#4732818)
Address space is not limited by RAM. The only concern is fixed vs expandable width address.