Re: Memory allocation faile on string concat

[Steven Schveighoffer]

On Wed, 10 Nov 2010 13:55:26 -0500, sybrandy <sybra...@gmail.com> wrote:
On 11/10/2010 11:33 AM, Xie wrote:
Can't run a simple program. What's wrong, GC?

import std.stdio;
import std.date;

void f0()
{
        wstring a[];

        foreach(i; 0 .. 100_000_000)
        {
                a ~= " "w;
        }
}

void main()
{
        auto r = benchmark!(f0)(1);
        writeln(r, "ms");
}

DMD 2.047

In addition to what everybody else is suggesting you look at, you may  
want to look into using an appender (defined in std.array).  Not sure if  
it will help with the memory usage, but it's supposed to be faster for  
appending data to an array.

Just tried it, Appender is actually slower.  This *is* a problem, it  
should be way faster than builtin array appending.

I will look into it.

-Steve