In pseudo code it should look like this:
Expressions N expressions;
construct( expressions );// or something similar
do_step( epxressions , x ); // my method
How about something like?
~
#include boost/proto/proto.hpp
using namespace boost::proto;
On Mar 18, 2011, at 9:17 AM, Karsten Ahnert wrote:
Hmm, this might work. It is similar to
my_method( fusion::make_vector( i+i , i*i*i , i*i ) , x );
But the expression might become really large, say 100 elements. A
separation between construction and usage would be nicer.
How about?
On Feb 26, 2011, at 4:55 AM, Eric Niebler wrote:
On 2/26/2011 8:18 AM, Nate Knight wrote:
int main()
{
la::state_type x = {1.0,2.0};
la::state_type const xc = x;
// this compiles
la::EvalOpt()( lit(x)[1] );
// this fails to compile
//la::EvalOpt()( lit(xc)[1
On Feb 20, 2011, at 4:43 AM, Joel Falcou wrote:
On 20/02/11 12:41, Eric Niebler wrote:
On 2/20/2011 6:40 PM, Joel Falcou wrote:
On 20/02/11 12:31, Karsten Ahnert wrote:
It is amazing that the proto expression is faster then the naive one.
The compiler must really love the way proto
Not sure what happened to those tables. I'll try again.
MacBook Pro, 10.6.6, Core 2 Duo
ProtoContextProtoTransform ProtoLambda Loop
GCC 4.2.1 (Apple) : 5.3565438 5.3721942 126.38458
1.3657978
GCC 4.4.5 : 1.8878364
On 2/12/2011 7:17 AM, Nate Knight wrote:
I see in the Proto documentation a trick for getting the Proto operator
overloads found by ADL using something like
templateclass T, class Dummy = proto::is_proto_expr
struct my_complex
{
BOOST_PROTO_EXTENDS(
typename proto::terminalstd
Eric Niebler eric@... writes:
This is a fun little problem. The answer is very simple, but requires
some knowledge of proto's pass_through transform, possessed by
proto::nary_expr (and friends):
Eric,
Thanks for the pointers. I had tried this with nary_expr, but had some trouble
them all). Also, as written the transform doesn't
recurse properly, and I'm having some trouble seeing how to correct this.
As I'm really just trying to get my mind around how proto works, any comments
would be appreciated.
Thanks
Nate Knight
test2.cpp
Description: test2.cpp
