lysdexic@programming.dev to Rust@programming.devEnglish · 1 year agoCommon Rust Lifetime Misconceptions (2020)github.comexternal-linkmessage-square5fedilinkarrow-up138arrow-down11cross-posted to: hackernews@lemmy.smeargle.fanshackernews@derp.foo
arrow-up137arrow-down1external-linkCommon Rust Lifetime Misconceptions (2020)github.comlysdexic@programming.dev to Rust@programming.devEnglish · 1 year agomessage-square5fedilinkcross-posted to: hackernews@lemmy.smeargle.fanshackernews@derp.foo
minus-squareKillTheMule@programming.devlinkfedilinkarrow-up1·edit-21 year agoNote that when you change num to take &self instead, this works out (you also need to mark foo as mutable, of course).
minus-squarehairyballs@programming.devlinkfedilinkarrow-up1·1 year agoIt’s a toy example. In that case, the solution is to assign the expression to a variable to compute its result upfront.
Note that when you change
numto take&selfinstead, this works out (you also need to markfooas mutable, of course).It’s a toy example. In that case, the solution is to assign the expression to a variable to compute its result upfront.