Similarly to the static import expression, this imports a function pointer obtained by dynamic linking as an SML# function. The type of $⟨$exp$\mathrm{⟩}$ must be codeptr. When evaluating this expression, $⟨$exp$\mathrm{⟩}$ is evaluated to an function pointer. If the function pointer points to a C function of the type indicated by $⟨$cfunty$\mathrm{⟩}$, the value of this expression is the SML# function that calls the C function. Otherwise, the value of this expression is undefined.