exceptions.h

Go to the documentation of this file.

 
// SPDX-License-Identifier: LGPL-2.1-or-later
 
#ifndef TASKOLIB_EXCEPTIONS_H_
#define TASKOLIB_EXCEPTIONS_H_
 
#include <cstring>
#include <stdexcept>
#include <string>
 
#include "taskolib/StepIndex.h"
 
namespace task {
 
class Error : public std::runtime_error
{
public:
    explicit Error(const std::string& msg, OptionalStepIndex opt_step_index = gul14::nullopt)
        : std::runtime_error(msg)
        , index_{ opt_step_index }
    {}
 
    explicit Error(const char* msg, OptionalStepIndex opt_step_index = gul14::nullopt)
        : std::runtime_error(msg)
        , index_{ opt_step_index }
    {}
 
    OptionalStepIndex get_index() const { return index_; }
 
    friend bool operator==(const Error& lhs, const Error& rhs) noexcept
    {
        return (std::strcmp(lhs.what(), rhs.what()) == 0)
            && lhs.index_ == rhs.index_;
    }
 
    friend bool operator!=(const Error& lhs, const Error& rhs) noexcept
    {
        return !(lhs == rhs);
    }
 
private:
    OptionalStepIndex index_;
};
 
} // namespace task
 
#endif