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Niels Lohmann
9b1e4f2cea
The JSON number grammar is encoded twice: as the scan_number() state machine and as the contiguous fast path. The fast path declining on anything it does not recognize keeps most divergence harmless, but if it ever accepted something the state machine rejects the result would be a silent correctness bug, and the existing test only pinned a hand-written list of numbers. Enumerate every string of length 1..4 over "01.eE+-" (2800 tokens) and require both paths to agree on the parsed value and on the exact error message. Verified to fail if the fast path's grammar is perturbed. Signed-off-by: Niels Lohmann <mail@nlohmann.me>