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/*
* Copyright 2020 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <limits>
#include <type_traits>
namespace bluetooth {
namespace common {
// Check if input is within numeric limits of RawType
template <typename RawType, typename InputType>
bool IsNumberInNumericLimits(InputType input) {
// Only arithmetic types are supported
static_assert(std::is_arithmetic_v<RawType> && std::is_arithmetic_v<InputType>);
// Either both are signed or both are unsigned
static_assert(
(std::is_signed_v<RawType> && std::is_signed_v<InputType>) ||
(std::is_unsigned_v<RawType> && std::is_unsigned_v<InputType>));
if (std::numeric_limits<InputType>::max() > std::numeric_limits<RawType>::max()) {
if (input > std::numeric_limits<RawType>::max()) {
return false;
}
}
if (std::numeric_limits<InputType>::lowest() < std::numeric_limits<RawType>::lowest()) {
if (input < std::numeric_limits<RawType>::lowest()) {
return false;
}
}
return true;
}
} // namespace common
} // namespace bluetooth
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