src/conversion.cpp


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#include "conversion.hpp"

#include <climits>
#include <stdexcept>

unsigned int str_to_uint(std::string_view str)
{
	if (str.at(0) == '-')
	{
		throw "Less than 0";
	}

	std::size_t waste_pos = 0;

	uint64_t num = 0;

	try
	{
		num = std::stoul(str.data(), &waste_pos, NUMBER_BASE);
	}
	catch (const std::invalid_argument &exc)
	{
		throw "Not a number";
	}
	catch (const std::out_of_range &exc)
	{
		throw "Out of range";
	}

	if (waste_pos != str.length())
	{
		throw "Not a number";
	}

	if (num > UINT_MAX)
	{
		throw "Out of range";
	}

	return static_cast<unsigned int>(num);
}