Re: Most performant way of converting int to string

[Minas Mina via Digitalmars-d-learn]

On Wednesday, 23 December 2015 at 22:29:31 UTC, Andrew Chapman 
wrote:
On Wednesday, 23 December 2015 at 11:46:37 UTC, Jakob Ovrum 
wrote:
On Wednesday, 23 December 2015 at 11:21:32 UTC, Jakob Ovrum 
wrote:
Dynamic memory allocation is expensive. If the string is 
short-lived, allocate it on the stack:

See also std.conv.toChars[1] for stringifying lazily/on-demand.
http://dlang.org/phobos/std_conv#toChars

Thanks Jakob!  I did try toChars but I couldn't quite figure 
out a syntax of calling it that the compiler was happy with.  
From memory I tried things along the lines of:

string v = toChars!(16,char,LetterCase.lower)(i);

to convert an integer to Hex for example, but the compiler 
wasn't happy with it.  How would I convert an int to a string 
using this?

Cheers.

I haven't tested it, but:
`toChars` doesn't return a string -- that's the whole point :)
It returns a range, so you have to call it something like:
auto v = toChars!(16,char,LetterCase.lower)(i);