bug? floating point precision with std.format

[H. S. Teoh via Digitalmars-d]

On Mon, Jun 05, 2017 at 04:29:06PM +0000, Seb via Digitalmars-d wrote:
> On Monday, 5 June 2017 at 15:37:42 UTC, Steven Schveighoffer wrote:
> > It appears that the precision parameter in std.format differs from its
> > meaning in printf. Is that expected behavior?
> > 
> > Example:
> > 
> > import std.stdio;
> > import core.stdc.stdio;
> > 
> > void main()
> > {
> >     auto f = 20.66666;
> >     writeln(f);
> >     writefln("%0.3s", f);
[...]

That should be "%0.3f", not "%0.3s".

If you use the "%s" specifier, precision is interpreted differently,
i.e., as "maximum number of characters", as per "%s" in C's printf.


T

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