57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
#pragma once
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////////////////////////////////////////////////////////////////////////////////
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// The MIT License (MIT)
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//
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// Copyright (c) 2018 Nicholas Frechette & Animation Compression Library contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////
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#include "acl/core/impl/compiler_utils.h"
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ACL_IMPL_FILE_PRAGMA_PUSH
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namespace acl
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{
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//////////////////////////////////////////////////////////////////////////
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// This class is meant to encapsulate a simple error message and easily
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// coerce with 'bool' in order to simplify and clean up error handling.
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// In an ideal world, I would love for a C++11 equivalent of std::result in Rust.
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//////////////////////////////////////////////////////////////////////////
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class error_result
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{
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public:
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error_result() : m_error(nullptr) {}
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explicit error_result(const char* error) : m_error(error) {}
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bool empty() const { return m_error == nullptr; }
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bool any() const { return m_error != nullptr; }
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const char* c_str() const { return m_error != nullptr ? m_error : ""; }
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void reset() { m_error = nullptr; }
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private:
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const char* m_error;
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};
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}
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ACL_IMPL_FILE_PRAGMA_POP
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