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/*
* Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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.
*/
#include "souschef/LexicalCast.h"
#include <cassert>
#include <limits>
#include <stdexcept>
namespace souschef
{
template <> float to_number(const std::string &s) { return std::stof(s); }
template <> int to_number(const std::string &s) { return std::stoi(s); }
template <> int16_t to_number(const std::string &s)
{
// There are no standard function to parse int16_t or short int
// This function simulates behavior similar stoi, stol and stoll
int res = std::stol(s);
// standard does not specify string in error message, this is arbitrary
if (res < std::numeric_limits<int16_t>::min() || res > std::numeric_limits<int16_t>::max())
{
throw std::out_of_range("to_number<int16_t>");
}
return res;
}
template <> int64_t to_number(const std::string &s) { return std::stoll(s); }
template <> uint8_t to_number(const std::string &s)
{
int temp = std::stoi(s);
assert(temp >= 0);
assert(temp <= std::numeric_limits<uint8_t>::max());
return static_cast<uint8_t>(temp);
}
template <> int8_t to_number(const std::string &s)
{
int temp = std::stoi(s);
assert(temp >= std::numeric_limits<int8_t>::min());
assert(temp <= std::numeric_limits<int8_t>::max());
return static_cast<int8_t>(temp);
}
template <> bool to_number(const std::string &s)
{
if (s == "T" || s == "t" || s == "TRUE" || s == "true" || s == "1")
return true;
if (s == "F" || s == "f" || s == "FALSE" || s == "false" || s == "0")
return false;
throw std::invalid_argument("Unsupported boolean argument");
}
template <> std::string to_number(const std::string &s) { return s; }
} // namespace souschef
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