Function SCIPintervalPowerScalarIntegerSup 

pub unsafe extern "C" fn SCIPintervalPowerScalarIntegerSup(
    operand1: f64,
    operand2: c_int,
) -> f64

computes upper bound on power of a scalar operand1 to an integer operand2

Both operands need to be finite numbers. Needs to have operand1 ≥ 0 and needs to have operand2 ≥ 0 if operand1 = 0.