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Home » Community » U++ community news and announcements » get_i
Re: get_i [message #54275 is a reply to message #54274] Wed, 17 June 2020 23:59 Go to previous messageGo to previous message
Novo is currently offline  Novo
Messages: 1358
Registered: December 2006
Ultimate Contributor
A more generic version of
template <typename... T>
constexpr const char *get_i(int i, const char* p0, const T& ...args)
{
	const char *list[] = { p0, args... };
	return list[clamp(i, 0, (int)sizeof...(args))];
}

	template <typename A, typename... T>
	constexpr A* get_i(int i, A* p0, const T& ...args)
	{
		A* list[] = { p0, args... };
		return list[clamp(i, 0, (int)sizeof...(args))];
	}

Example:
	const char* cr = get_i(1, "0", "11", "222");
	RLOG(cr);
	cr = get_i(1, "0", String("11"), "222");
	RLOG(cr);
	const wchar _0[] = {0};
	const wchar _3[] = {2, 2, 2};
	const wchar* wcr = get_i(1, _0, WString("11"), _3);
	RLOG(wcr);


Regards,
Novo

[Updated on: Thu, 18 June 2020 00:00]

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