Why whole structure can not be compared in C, yet it can be copied?

Question

Why whole structure can not be compared in C yet it can be copied? In other words, Why comparison in below program does not work? It does not print string.

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Answer 1

But if you pass your value to a string, will it work?

void Comparethisvalue(emp a, emp b) 
{
    if(a.n.tostring()+a.age.tostring() == b.n.tostring()+b.age.tostring())
      return true; 
}

in code you can call

if(Comparethisvalue(e1, e2))
{
  //do something
}

Or you can implicit do it:

void Comparethisvalue(emp a, emp b) 
{
  if(a.n == b.n && a.age == b.age)
    return true; 
}