theBelovedSTL

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sin( Tp return X) builtin sin x): friend constexpr difference type operator- (const Iterator X, const Iterator requires detail:: advanceable Winc using detail:: is integer like; using detail: is signed integer like; using Dt difference type; if constexpr ( is integer like Winc) if constexpr ( is signed integer like Winc) returnDtfDt( X. Mvalue) Dt( y. M value)); else return y. M value X. M value) Dt (- Dt( y. M value x. M value)) Dt ( X. M value y. M value); else return X. M value Me looking the definition of and ST function because I’m interested in haw it is implemented