Helper to return a converted sequence from FHiCL configuration. More...

#include <FHiCLutils.h>

Public Member Functions
	SequenceWrapper (SeqValueType seqValue)

template<typename T >
	operator std::vector< T > () const

Public Attributes
SeqValueType	seqValue

Detailed Description

template<typename SeqValueType>
struct util::fhicl::SequenceWrapper< SeqValueType >

Helper to return a converted sequence from FHiCL configuration.

Template Parameters

SeqValueType type of the sequence value being extracted

This class can be used to apply implicit conversion of a fhicl::Sequence of objects into a std::vector of another type, as sometimes fhicl::Sequence does not support the desired type directly. For example:

struct MyData {
  int fValue;
  MyData(int value): fValue(value) {}
};
struct Config {
  fhicl::Sequence<int> Data {
    fhicl::Name("Data"),
    fhicl::Comment("The data"),
    { 0, 1, 2 }
    };
};
std::vector<MyData> fData;
MyClass(Config const& config)
  : fData(util::FHiCLsequenceWrapper(config.Data()))
  {}