Acces violation in re-entrant parser.

Hello, I have made a non re-entrant parser succesfully with bison 1.875 and flex 2.5.4a to parse user-defined formulas and retrieve the result. I have tried afterwards to do the same with re-entrants options ("%pure_parser" in bison and "%option reentrant stack" in flex), with the help of biso

Reentrant parser

Hello, I would like to use a reentrant parser under windows, by using bison and flex. I am currently using bison 1.875 and flex 2.5.4a. Since reentrant options are not present in flex 2.5.4a, I was considering installing flex 2.5.31 but found no binary versions for windows on Internet. So my q