/prog/ - Programming★

I often have to grit my teeth using a language that isn't really built for metaprogramming. I'll start off writing things in a certain way, but then realize that it will just become a nightmare to deal with and it would be easier doing it in the standard way.

I am yet to try a language that isn't a Lisp which makes non-trivial metaprogramming relatively simple. Anyone have any suggestions?

it's pretty cool but i hardly use it.

crytek makes excessive use of it, e.g. for their RPC functions. when working with the freesdk i realized IDEs really suck at dealing with that kind of thing, took me some time to figure out how and where functions were declared and defined.

>>2867

forth is great for meta programming

\ extra registers
create rn 8 cells allot
: @rn @ rn + ;
: ldn ( n -- | -- n ) create , does> @rn @ ;
: stn ( n -- | n -- ) create , does> @rn ! ;
: regacc dup ldn stn ;
0 regacc ld0 st0
1 regacc ld1 st1
2 regacc ld2 st2
3 regacc ld3 st3
4 regacc ld4 st4
5 regacc ld5 st5
6 regacc ld6 st6
7 regacc ld7 st7

Is some code I just wrote.

C++ templates are great until you destroy your first project with them. It's a race to see what will kill it first: code bloat or compile time. Experiment with them and see what the overhead is. I guarantee you'll be shocked as no one believes they're so prone to these problems until you force their eyes open.

> ruin time

I almost always use it with types in C++ to make some functions and comparisons more generic- i.e compare by an attribute of a class or struct instead of operator overloading. However, not much beyond that.

For example:

template <typename OBJ, typename ATTR>
void bytype(const ATTR OBJ::*p, const vector<OBJ>& input)

…

bytype<Struct, string>(&Struct::attribute, data);