Walter Banks wrote:
> I wish that pascal had braces and statement locals and C had
> pascal's local functions.

Pascal has BEGIN/END, which is pretty much the same as C braces.  A
BEGIN/END block is a compound statement that is viewed as a single statemen=
t
outside the block.

I'm not sure what you mean by "statement locals".  If you mean temporary
variables only within the scope of a specific block of code, as apposed to =
a
whole routine, then I don't know of anything similar in Pascal.  That is a
reasonable idea that is embodied in C (Wow, who'd have thought!).

In my source to source translator, there is a significant section of code i=
n
the C back end to deal with local functions.  I emulate them by using globa=
l
functions and explicitly passing any accessed local state down to the
function.

This can get messy with nesting.  Let's say routine A calls local routine B=
,
which calls its own local routine C.  C may access a local variable of A, s=
o
that variable has to be passed to B just so B can pass it to C when these
local routines are emulated with global routines.  My translator does
multiple passes of pushing call arguments up the chain until no changes are
made in a pass.  The result is not pretty, but it works for the C output
language.


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