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12.2.2.16 ‘-ylx’: Maximum length of expressions that can be expanded with the post-increment operators of Fortran or Ratfor

Fortran and Ratfor can expand expressions such as ‘x(i) += dx’ into their Fortran counterparts such as ‘x(i) = x(i) + dx’. It does so in a very straightforward way, by copying the expression to the left of the equals sign. ‘-ylx’ controls the maximum size of that expression.