dune-common  2.2.0
Static Public Member Functions
Dune::ForLoop< Operation, first, last > Class Template Reference

A static loop using TMP. More...

#include <dune/common/forloop.hh>

Inheritance diagram for Dune::ForLoop< Operation, first, last >:
Dune::GenericForLoop< ForLoopHelper::Apply, Operation, first, last > Dune::ForLoopHelper::Apply< Operation< first >, GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >

List of all members.

Static Public Member Functions

static void apply ()
static void apply (T1 &p1)
static void apply (T1 &p1, T2 &p2)
static void apply (T1 &p1, T2 &p2, T3 &p3)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8, T9 &p9)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8, T9 &p9, T10 &p10)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8, T9 &p9, T10 &p10, T11 &p11)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8, T9 &p9, T10 &p10, T11 &p11, T12 &p12)
static void apply (T1 &p1, T2 &p2, T3 &p3, T4 &p4, T5 &p5, T6 &p6, T7 &p7, T8 &p8, T9 &p9, T10 &p10, T11 &p11, T12 &p12, T13 &p13)

Detailed Description

template<template< int > class Operation, int first, int last>
class Dune::ForLoop< Operation, first, last >

A static loop using TMP.

The ForLoop takes a

template<int i> class Operation

template argument with a static apply method which is called for i=first...last (first<=last are int template arguments). A specialization for class template class Operation for i=first or i=last is not required. The class Operation must provide a static void function apply(...). Arguments (as references) can be passed through the ForLoop to this function (up to 5 at the moment).

It is possible to pass a subclass to the ForLoop (since no specialization is needed).

Example of usage:

template<class Tuple>
struct PrintTupleTypes
{
template <int i>
struct Operation
{
template<class Stream>
static void apply(Stream &stream, const std::string &prefix)
{
stream << prefix << i << ": "
<< className<typename tuple_element<i, Tuple>::type>()
<< std::endl;
}
};
template<class Stream>
static void print(Stream &stream, const std::string &prefix)
{
// cannot attach on-the-fly in the argument to ForLoop<..>::apply() since
// that would yield an rvalue
std::string extended_prefix = prefix+" ";
stream << prefix << "tuple<" << std::endl;
ForLoop<Operation, 0, tuple_size<Tuple>::value-1>::
apply(stream, extended_prefix);
stream << prefix << ">" << std::endl;
}
};
Note:
Don't use any rvalues as the arguments to apply().

Rvalues will bind to const-references, but not to references that are non-const. Since we do want to support modifiable arguments to apply(), we have to use non-const references as arguments. Supporting const references as well would lead to an insane number of overloads which all have to be written more-or-less by hand.

Examples of rvalues are: literals (1.0, 0, "huhu"), the results of functions returning an object (std::make_pair(0, 1.0)) and temporary object constructions (std::string("hello"));


Member Function Documentation

static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( )
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8,
T9 &  p9 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8,
T9 &  p9,
T10 &  p10 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8,
T9 &  p9,
T10 &  p10,
T11 &  p11 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8,
T9 &  p9,
T10 &  p10,
T11 &  p11,
T12 &  p12 
)
inlinestaticinherited
static void Dune::ForLoopHelper::Apply< Operation< first > , GenericForLoop< ForLoopHelper::Apply, Operation, first+1, last > >::apply ( T1 &  p1,
T2 &  p2,
T3 &  p3,
T4 &  p4,
T5 &  p5,
T6 &  p6,
T7 &  p7,
T8 &  p8,
T9 &  p9,
T10 &  p10,
T11 &  p11,
T12 &  p12,
T13 &  p13 
)
inlinestaticinherited

The documentation for this class was generated from the following file: