digitalmars.D.learn - ElementType of MapResult is a delegate??
- Yuxuan Shui (4/4) Dec 08 2018 This surprised me A LOT:
- John Chapman (4/8) Dec 08 2018 But in your example, "(a) =>" returns "{return tmp;}", which is a
- Steven Schveighoffer (4/15) Dec 09 2018 This is exactly why (a) => {return tmp;} should not compile.
This surprised me A LOT: https://d.godbolt.org/z/82a_GZ So if I call something.map!().array, I get an array of delegates? That makes no sense to me.
Dec 08 2018
On Saturday, 8 December 2018 at 13:02:00 UTC, Yuxuan Shui wrote:This surprised me A LOT: https://d.godbolt.org/z/82a_GZ So if I call something.map!().array, I get an array of delegates? That makes no sense to me.But in your example, "(a) =>" returns "{return tmp;}", which is a delegate. Just write "(a) => tmp", or invoke the delegate by turning it into a call: "{return tmp;}()".
Dec 08 2018
On 12/8/18 8:19 AM, John Chapman wrote:On Saturday, 8 December 2018 at 13:02:00 UTC, Yuxuan Shui wrote:This is exactly why (a) => {return tmp;} should not compile. Almost everyone has made that mistake. -SteveThis surprised me A LOT: https://d.godbolt.org/z/82a_GZ So if I call something.map!().array, I get an array of delegates? That makes no sense to me.But in your example, "(a) =>" returns "{return tmp;}", which is a delegate. Just write "(a) => tmp", or invoke the delegate by turning it into a call: "{return tmp;}()".
Dec 09 2018