On Sunday, 20 December 2020 at 13:58:00 UTC, Max Haughton wrote:
The if is a template constraint.
Ah sorry! I must have missed that part of the dlang tour.
(https://tour.dlang.org/tour/en/gems/template-meta-programming)
Thanks a lot!
On Sunday, 20 December 2020 at 13:51:08 UTC, Rekel wrote:
I found a lot of the Phobos documentation to contain template
arguments and if statements that made no sense to me, for
example:
```
uint readf(alias format, A...) (
auto ref A args
)
if (isSomeString!(typeof(format)));
uint
I found a lot of the Phobos documentation to contain template
arguments and if statements that made no sense to me, for example:
```
uint readf(alias format, A...) (
auto ref A args
)
if (isSomeString!(typeof(format)));
uint readf(A...) (
scope const(char)[] format,
auto ref A args
);
```
