On Wednesday, 5 January 2022 at 09:32:36 UTC, Robert Schadek
wrote:
In
https://forum.dlang.org/post/tfdycnibnxyryizec...@forum.dlang.org I complained
that error message related to range primitives like
isInputRange, especially on
template constraints, are not great.
[...]
cool!
As I'm not a fan of needing to refactor code I made my first DMD
PR to try to make it possible to include this in phobos here:
https://github.com/dlang/dmd/pull/13511
```d
source/app.d(43,5): Error: template `app.fun` cannot deduce
function from argument types `!()(Sample1)`
source/app.d(22,6): Candidates are: `fun(T)(T t)`
with `T = Sample1`
must satisfy the following constraint:
` isInputRange!T: Sample1 is not an InputRange because:
the function 'popFront' does not exist`
source/app.d(24,6): `fun(T)(T t)`
with `T = Sample1`
must satisfy the following constraint:
` isRandomAccessRange!T: Sample1 is not an
RandomAccessRange because
the function 'popFront' does not exist
and the property 'save' does not exist
and must allow for array indexing, aka. [] access`
```
