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// Copyright © 2021 HQS Quantum Simulations GmbH. All Rights Reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except // in compliance with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software distributed under the // License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either // express or implied. See the License for the specific language governing permissions and // limitations under the License. //! Classical registers for roqoqo. //! //! Registers are used to store classical information during the execution of a //! roqoqo circuit and to provide a unified output interface for the different backends. use num_complex::Complex64; // This could be optimized by using bit-vec or bitvec traits // but needs to be tested first. /// Represents classical register of bits for computation in qoqo. pub type BitRegister = Vec<bool>; /// Represents classical register of float numbers for computation in qoqo. pub type FloatRegister = Vec<f64>; /// Represents classical register of complex numbers for computation in qoqo. pub type ComplexRegister = Vec<Complex64>; /// Represents classical bit registers for output of computations in qoqo. /// /// Vector over single bit registers that are each the output of a single run /// of a quantum program. pub type BitOutputRegister = Vec<BitRegister>; /// Represents classical float registers for output of computations in qoqo. /// /// Vector over single float registers that are each the output of a single run /// of a quantum program. pub type FloatOutputRegister = Vec<FloatRegister>; /// Represents classical complex registers for output of computations in qoqo. /// /// Vector over single complex registers that are each the output of a single run /// of a quantum program. pub type ComplexOutputRegister = Vec<ComplexRegister>;