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std::unordered_map s_list;
Die Klasse2 hat einen Kopierkonstruktor der Form:
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class2::class2(const class2& obj)
{
x = obj.x;
y = obj.y;
}
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class2::class2(std::string x1, double y1)
{
x = x1;
y = y1;
}
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class2 s_obj(x1, y1);
s_list[x1] = s_obj;
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error: no matching function for call to ‘class2::class2()’
second(std::forward(std::get(__tuple2))...)
^