Complex canonicalizer for the variable atom
Complex2Real.variable_canon(expr, real_args, imag_args, real2imag)
expr
: An Expression objectreal_args
: A list of Constraint objects for the real part of the expressionimag_args
: A list of Constraint objects for the imaginary part of the expressionreal2imag
: A list mapping the ID of the real part of a complex expression to the ID of its imaginary part.A canonicalization of a variable atom, where the returned variables are the real component and the NULL imaginary component.