foo.cc: In constructor 'Person::Person(const char*, int, int, int, int, int, int)':
foo.cc:60:20: warning: argument to 'sizeof' in 'void* memcpy(void*, const void*, size_t)' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess]
   60 |   memcpy(name, ch, sizeof(name));
      |                    ^~~~~~~~~~~~
foo.cc: In member function 'Person& Person::operator=(Person)':
foo.cc:76:24: warning: argument to 'sizeof' in 'void* memcpy(void*, const void*, size_t)' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess]
   76 |   memcpy(name, p.name, sizeof(name));
      |                        ^~~~~~~~~~~~
foo.cc: In member function 'void Persons::Output()':
foo.cc:115:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Person*>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |   for(int i=0;i<ps.size();i++)
      |               ~^~~~~~~~~~

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