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1234567891011 |
- ( parsed is tight, all comments ahead. We read the first char
- outside of the loop because it *has* to be nonzero, which
- means _pdacc *has* to return 0.
-
- Then, we check for '-'. If we get it, we advance by one,
- recurse and invert result.
-
- We loop until _pdacc is nonzero, which means either WS or
- non-digit. 1 means WS, which means parsing was a success.
- -1 means non-digit, which means we have a non-decimal. )
-
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