Multiplatform development[DOUBT]

[wiki via Digitalmars-d-learn]

A friend of mine asked me a question today if D is multiplatform 
I particularly believe it is but I wanted to know the opinion of 
who has already developed the most time in it and even of the 
developers because I looked for some cisa on the net about such 
subject and did not find anything that said about Whether or not 
it is multplataforma ..
For C and C ++ if I develop in a standard ansi then could compile 
on both Unix, Linux, Windows platforms with D does this happen?