Revision as of 09:51, 13 March 2020 edit Citation bot (talk \| contribs) Bots 5,871,307 edits m Alter: template type, title. Add: date, year, citeseerx. Removed URL that duplicated unique identifier. \| You can use this bot yourself. Report bugs here. \| Activated by User:AManWithNoPlan \| All pages linked from User:AManWithNoPlan/sandbox2 \| via #UCB_webform_linked ← Previous edit		Revision as of 00:31, 22 April 2020 edit undo ThomasJMarko (talk \| contribs) 67 edits →Compile-time class generation: Add information on consteval from C++20 Next edit →
Line 51: To be able to use templates in this manner, the compiler must know the value of its parameters at compile time, which has the natural precondition that factorial<X>::value can only be used if X is known at compile time. In other words, X must be a constant literal or a constant expression. In [[C++11]] and [[C++20]], [[constexpr]], aand consteval were ~~way~~introduced to let the compiler execute ~~simple constant expressions, was added~~code. Using constexpr and consteval, one can use the usual recursive factorial definition with the non-templated syntax.<ref>http://www.cprogramming.com/c++11/c++11-compile-time-processing-with-constexpr.html</ref> ==Compile-time code optimization==

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