Pedro F. Giffuni
039b877ef0
regex: prevent two improbable signed integer overflows. ...
In matcher() we used an integer to index nsub of type size_t.
In print() we used an integer to index nstates of type sopno,
typedef'd long.
In both cases the indexes never take negative values.
Match the types to avoid any error.
MFC after: 5 days
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039b877ef0