https://dlang.org/library/std/process/pipe.html
import std;
void main()
{
auto p = pipe();
}
Output:
/dlang/dmd/linux/bin64/../../src/phobos/std/functional.d(1272): Error: template instance `std.functional.compose!()` does not match template declaration `compose(fun...)`
with `fun = ()`
must satisfy the following constraint:
` fun.length > 0`
onlineapp.d(5): Error: template instance `std.functional.pipe!()` error instantiating