Trade-offs worth knowing: genericClosure's std::map tracks seen keys at O(log n) per step. With unique monotonic keys, the check is effectively a sorted insert, but the map still grows linearly with step count. State must be data that deepSeq can fully evaluate. deepSeq recurses through attrsets and lists, but a function value is already in normal form. There's nothing inside a closure for deepSeq to force. If each step builds a new closure that wraps the previous one (say, { process = x: prev.process (x + 1); } where prev is last step's state), the chain of closure references grows with N. deepSeq sees a function, stops, and the chain survives. The trampoline runs fine; the blowup arrives when you call the accumulated function. A constant function carried unchanged across steps causes no problem at any N.
Iterator A (country = 'United States'): [100, 101, 102, 103, ...]
。新收录的资料是该领域的重要参考
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According to Gurman, the touchscreen MacBook may be priced even higher than the recently announced M5 Pro and M5 Max MacBook Pro models. The M5 Max MacBook Pro currently has a starting price of $3,599.
為何美國以色列此刻出手？伊朗進入「生存模式」，結局仍充滿變數