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In which language is F#'s compiler written?
I've heard that F#'s compiler is written in F# :)
(each next version of F# compiler is written on its previous version)
But:
1. Can't google if it's true.
2. If it's true, in which language is the first version of the F# compiler written?
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The F specifier is for decimal real data items. The general form is F [ w [ . d ] ] : The F w and F w.d edit specifiers indicate that the field to be edited occupies w positions.
However, functional programming languages are not highly popular. Most programmers never learn any functional programming languages, choosing instead to learn one of C#, Java, C++, Javascript and stick with it indefinitely. For that reason, F# is stuck in a position of being the number 3 .
Nope. Not only the syntax of both languages is completely different, but even the paradigm they implement is different: F# is a functional language, while Fortran is essentially imperative.
The F# compiler is written in F#. The source code is available.
It was originally bootstrapped years ago using OCaml, I believe (and perhaps a little C++ as well). (There is still a non-trivial subset of F# that cross-compiles with OCaml, though the F# compiler source base has long since diverged from that.)
The current implementation always uses an LKG (last-known-good) set of binaries (.NET DLLs and EXEs) to bootstrap itself when building from source.
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