Gaudi::Functional::details::zip Namespace Reference

Functions
template<typename OS, typename Arg>
OS &	printSizes (OS &out, Arg &&arg)
	Print the parameter.
template<typename OS, typename Arg, typename... Args> requires ( sizeof...( Args ) > 0 )
OS &	printSizes (OS &out, Arg &&arg, Args &&... args)
	Print the parameters.
template<typename A, typename... Rest>
bool	check_sizes (const A &first, const Rest &... rest) noexcept
	Compare sizes of 1 or more containers.
template<typename... Args>
decltype(auto)	verifySizes (Args &... args)
	Verify the data container sizes have the same sizes.
template<typename... Args>
decltype(auto)	range (Args &&... args)
	Zips multiple containers together to form a single range.
template<typename... Args>
decltype(auto)	const_range (Args &&... args)
	Zips multiple containers together to form a single const range.

Function Documentation

check_sizes()

template<typename A, typename... Rest>

bool Gaudi::Functional::details::zip::check_sizes ( const A & first, const Rest &... rest )

noexcept

Compare sizes of 1 or more containers.

Definition at line 48 of file zip.h.

                                                                     {
      return ( ( first.size() == rest.size() ) && ... );
    }

const_range()

template<typename... Args>

decltype(auto) Gaudi::Functional::details::zip::const_range ( Args &&... args )

inline

Zips multiple containers together to form a single const range.

Definition at line 80 of file zip.h.

                                                          {
#ifndef NDEBUG
      verifySizes( args... );
#endif
#if defined( GAUDI_FUNCTIONAL_USES_STD_RANGES )
      return std::ranges::as_const_view( std::ranges::zip_view( std::forward<Args>( args )... ) );
#else
      return ranges::views::const_( ranges::views::zip( std::forward<Args>( args )... ) );
#endif
    }

printSizes() [1/2]

template<typename OS, typename Arg>

OS & Gaudi::Functional::details::zip::printSizes	(	OS &	out,
		Arg &&	arg )

Print the parameter.

Definition at line 33 of file zip.h.

                                         {
      out << "SizeOf'" << System::typeinfoName( typeid( Arg ) ) << "'=" << arg.size();
      return out;
    }

printSizes() [2/2]

template<typename OS, typename Arg, typename... Args>
requires ( sizeof...( Args ) > 0 )

OS & Gaudi::Functional::details::zip::printSizes	(	OS &	out,
		Arg &&	arg,
		Args &&...	args )

Print the parameters.

Definition at line 41 of file zip.h.

                                                         {
      printSizes( out, arg ) << ", ";
      return printSizes( out, args... );
    }

range()

template<typename... Args>

decltype(auto) Gaudi::Functional::details::zip::range ( Args &&... args )

inline

Zips multiple containers together to form a single range.

Definition at line 67 of file zip.h.

                                                    {
#ifndef NDEBUG
      verifySizes( args... );
#endif
#if defined( GAUDI_FUNCTIONAL_USES_STD_RANGES )
      return std::ranges::zip_view( std::forward<Args>( args )... );
#else
      return ranges::views::zip( std::forward<Args>( args )... );
#endif
    }

verifySizes()

template<typename... Args>

decltype(auto) Gaudi::Functional::details::zip::verifySizes ( Args &... args )

inline

Verify the data container sizes have the same sizes.

Definition at line 55 of file zip.h.

                                                         {
      if ( !check_sizes( args... ) ) {
        std::ostringstream mess;
        mess << "Zipped containers have different sizes : ";
        printSizes( mess, args... );
        throw GaudiException( mess.str(), "Gaudi::Functional::details::zip::verifySizes", StatusCode::FAILURE );
      }
    }