tables::gtable::get
template <typename... Ts,is_primitive_type... Ps,typename... Gs>
template <typename... Ts,is_primitive_type... Ps,typename... Gs>
gtable<table<std::pair<Ts,Ps>...>,std::tuple<Gs...>>::ng_table_t
const grow_t& g
) constReturns table corresponding for g.
Example
Code
#include <cpptables/table.hh>
#include <iostream>
using namespace tables;
using namespace std;
struct c0{ constexpr static string_view name = "Col0"; };
struct c1{ constexpr static string_view name = "Col1"; };
struct c2{ constexpr static string_view name = "Col2"; };
using table_t = table<
pair<c0,string_view>,
pair<c1,unsigned>,
pair<c2,double>
>;
void gtable_get()
{
const table_t t(
{"abc", "def", "ghi", "abc", "def", "ghi"},
{100,200,300,400,500,600},
{1.0,2.0,3.0,4.0,5.0,6.0}
);
using gtable_t = table_t::group_by_t<tuple<c0>>;
using grow_t = gtable_t::grow_t;
const gtable_t gt = t.group_by<c0>();
const gtable_t::ng_table_t v = gt.get( grow_t( string_view("abc") ) );
cout << v << "\n";
}