D serialization temporary fixup?

[TheFlyingFiddle via Digitalmars-d-learn]

On Thursday, 22 October 2015 at 16:15:23 UTC, Shriramana Sharma 
wrote:
> I wanted a D equivalent to: 
> http://doc.qt.io/qt-5/qdatastream.html 
> https://docs.python.org/3/library/pickle.html
>
> and saw that one is under construction: 
> http://wiki.dlang.org/Review/std.serialization
>
> But till it's finalized, I'd just like to have a quick but 
> reliable way to store real and int data types into a binary 
> data file and read therefrom. Is there such a solution? The 
> size of the data is fixed, but especially since I have real 
> values, I'd like to not write to limited fixed decimal text 
> format.

If your only interested in POD data something like this should do 
the trick.

module pod_encoding;
import std.traits;
import std.stdio;

void encode(T)(string s, T[] t)
    if(!hasIndirections!T && (is(T == struct) || isNumeric!T))
{
    File(s, "wb").rawWrite(t);
}

T[] decode(T)(string s)
    if(!hasIndirections!T && (is(T == struct) || isNumeric!T))
{
   File f = File(s, "rb");
   assert(f.size % T.sizeof == 0, "File does not contain array of 
" ~ T.stringof ~ ".");
   auto size = f.size / U.sizeof;
   auto data = new T[size];
   data      = f.rawRead(data);
   return data;
}