Re: How to serialize a double.

[Jake Pittis via Digitalmars-d-learn]

On Thursday, 1 December 2016 at 07:13:45 UTC, Bauss wrote:
On Thursday, 1 December 2016 at 00:36:30 UTC, Jake Pittis wrote:
[...]

You could do something like below which will allow you to 
serialize any number.

````
import std.stdio : writeln;
import std.traits : isNumeric;

ubyte[] bytes(T)(T num) if (isNumeric!T) {
        auto buf = new ubyte[T.sizeof];
        
        (*cast(T*)(buf.ptr)) = num;
        
        return buf;
}

T value(T)(ubyte[] buf) if (isNumeric!T) {
        return (*cast(T*)(buf.ptr));
}
````

And example usage:
````
double foo = 3.14;

writeln(foo); // Prints 3.14

ubyte[] bar = foo.bytes;

writeln(bar); // Prints the bytes equal to 3.14

foo = bar.value!double;

writeln(foo); // Prints 3.14
````

Regarding the test assertion that failed. Turns out I had a bug 
in the test. (of course)
This last solution is very pretty. Thanks.

You folks are all so kind!