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Read solved variables with get_var_primalresult to avoid incorrect column indices after presolve. #4

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Read solved variables with get_var_primalresult to avoid incorrect column indices after presolve. #4

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10 changes: 5 additions & 5 deletions pylpsolve/pylpsolve.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -2580,11 +2580,11 @@ cdef class LP(object):
if self.lp == NULL:
raise LPException("Final variables available only after solve() is called.")

# Okay, now we've got it

cdef double *vars

get_ptr_variables(self.lp, &vars)
# Use get_var_primalresult instead of get_ptr_variables in order
# to use our original column indices: presolve may have deleted
# columns and this is the only way to get their solved values.
vars = [get_var_primalresult(self.lp, self.n_rows + 1 + col)
for col in range(self.n_columns)]

cdef tuple t
cdef ar[size_t, ndim=2, mode="c"] idx_bounds
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