Hello.

Can please anybody help me create template format2 like std.format.format,
so it can access to format string (change it for example)
then instantiate std.format.format template in compile-time-checkable way
format!"%d %s"(arg1, arg2)
so compiler can check format string vs arguments count at least.

i.e. if i would write
format2!"%d %s"(arg1)
i should give comile time error

and next difficulties, i want format2 have extra parameter (say "prefix"), not passed to std.format.format

for example, format2 should prepent prefix to format string then instantiate std.format.format

any advices
thanks

On Saturday, 1 May 2021 at 09:10:09 UTC, novice2 wrote:

Since std.format.format already does this, just create templates that simply pass on their arguments to it and let it validate them. "Prefixing" the format pattern is trivially done (in a separate template) before deferring to format.

https://run.dlang.io/is/QsYCkq

If you're not familiar with templates and the difference between compile-time and runtime parameters, there are several good write-ups, such as the template chapter of Ali Çehreli's book (which is available online at http://ddili.org/ders/d.en/templates.html).

On Saturday, 1 May 2021 at 16:21:33 UTC, Anonymouse wrote:

thanks for your time!