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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "utils.hpp"
#include <charconv>
namespace search::features::util {
template <typename T>
T strToInt(vespalib::stringref str)
{
T retval = 0;
if ((str.size() > 2) && (str[0] == '0') && ((str[1] | 0x20) == 'x')) {
std::from_chars(str.data()+2, str.data()+str.size(), retval, 16);
} else {
std::from_chars(str.data(), str.data()+str.size(), retval, 10);
}
return retval;
}
template <>
uint8_t
strToNum<uint8_t>(vespalib::stringref str) {
return strToInt<uint16_t>(str);
}
template <>
int8_t
strToNum<int8_t>(vespalib::stringref str) {
return strToInt<int16_t>(str);
}
template double strToNum<double>(vespalib::stringref str);
template float strToNum<float>(vespalib::stringref str);
template <> uint16_t strToNum<uint16_t>(vespalib::stringref str) { return strToInt<uint16_t>(str); }
template <> uint32_t strToNum<uint32_t>(vespalib::stringref str) { return strToInt<uint32_t>(str); }
template <> uint64_t strToNum<uint64_t>(vespalib::stringref str) { return strToInt<uint64_t>(str); }
template <> int16_t strToNum<int16_t>(vespalib::stringref str) { return strToInt<int16_t>(str); }
template <> int32_t strToNum<int32_t>(vespalib::stringref str) { return strToInt<int32_t>(str); }
template <> int64_t strToNum<int64_t>(vespalib::stringref str) { return strToInt<int64_t>(str); }
}
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