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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. struct Foo {
  6.     int x = 0;    
  7. };
  8.  
  9. void func(Foo *const x, Foo *y) {
  10.     x->x = 42;
  11.     // x = y; // error: assignment of read-only parameter ‘x’
  12. }
  13.  
  14. int main() {
  15.     Foo a;
  16.     Foo b;
  17.     cout << a.x << endl;
  18.     func(&a, &b);
  19.     cout << a.x << endl;
  20. }
Success #stdin #stdout 0s 2896KB
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					 https://ideone.com/Lojlvt
					
					
					
					
					

												

												
						
						

					

					
					
					

						
language:

						
C++14 (gcc 8.3)

					

					

						
created:
								
						
13 years ago

					

					

						
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