troubleshooting Question

nested class

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perlperl asked on
8 Comments1 Solution225 ViewsLast Modified:
class A {
        std::set <uint32_t> ids;
   friend class B; 

   class B {
             B(uint32_t in) : num (in) {
                 ids.insert(num);  // compiler error here
             ~B() {
                 ids.erase(num);   // compier error here too. 
             uint32_t num; 

main() { 
   A onj;


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Compiler is failing with
 error: invalid use of nonstatic data member
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