Re: Implicit encoding conversion on string ~= int ?

[Adam D. Ruppe]

I think what's happening is the compiler considers chars to be 
integral types (like they were in C), which means some implicit 
conversions between char, int, dchar, and others happen.

So
char[] a;
int b = 1000;
a ~= b;

the "a ~= b" is more like "a ~= cast(dchar) b", and then dchar -> 
char means it may be multibyte encoded, going from utf-32 to 
utf-8.