sc_attribute_randomized.h

/*******************************************************************************
 * Copyright 2022 MINRES Technologies GmbH
 *
 * 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.
 *******************************************************************************/
 
#ifndef _SCC_SC_ATTRIBUTE_RANDOMIZED_H_
#define _SCC_SC_ATTRIBUTE_RANDOMIZED_H_
 
#include "mt19937_rng.h"
#include <sysc/kernel/sc_attribute.h>
#include <type_traits>
 
namespace scc {
template <typename T> class sc_attribute_randomized : public sc_core::sc_attribute<T> {
public:
    sc_attribute_randomized(const std::string& name_)
    : sc_core::sc_attribute<T>(name_) {}
 
    sc_attribute_randomized(const std::string& name_, const T& value_)
    : sc_core::sc_attribute<T>(name_) {}
 
    sc_attribute_randomized(const sc_core::sc_attribute<T>& a)
    : sc_core::sc_attribute<T>(a.name()) {}
 
    // destructor (does nothing)
 
    virtual ~sc_attribute_randomized() {}
 
    template <bool cond, typename U> using resolvedType = typename std::enable_if<cond, U>::type;
 
    template <typename U = T> resolvedType<std::is_signed<T>::value, U> get_value() {
        if(this->value < 0)
            return MT19937::uniform(0, -this->value);
        else
            return this->value;
    }
 
    template <typename U = T> resolvedType<std::is_unsigned<T>::value, U> get_value() { return this->value; }
};
} // namespace scc // end of scc-sysc
#endif    /* _SCC_SC_ATTRIBUTE_RANDOMIZED_H_ */