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59 lines
1.3 KiB
59 lines
1.3 KiB
/*
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ISC License
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Copyright (c) 2026, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#pragma once
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#include "errno.hpp"
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#include <optional>
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struct Err
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{
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private:
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std::optional<int> _err;
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public:
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Err()
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{
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}
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operator int()
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{
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return (_err.has_value() ? _err.value() : -ENOENT);
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}
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Err&
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operator=(int v_)
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{
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if(!_err.has_value())
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_err = ((v_ >= 0) ? 0 : v_);
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else if(v_ >= 0)
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_err = 0;
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return *this;
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}
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bool
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operator==(int v_)
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{
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if(_err.has_value())
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return (_err.value() == v_);
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return false;
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}
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};
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