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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Tracer {
  5.    Tracer(void)
  6.       :m_name("(none)")
  7.    {
  8.       std::cout << "[" << m_name << "]    " << __PRETTY_FUNCTION__ << std::endl;
  9.    }
  10.    Tracer(const std::string & name)
  11.       :m_name(name)
  12.    {
  13.       std::cout << "[" << m_name << "]    " << __PRETTY_FUNCTION__ << std::endl;
  14.    }
  15.    Tracer(const Tracer & other)
  16.       :m_name("from " + other.m_name)
  17.    {
  18.       std::cout << "[" << m_name << "]    " << __PRETTY_FUNCTION__ << std::endl;
  19.    }
  20.    Tracer & operator=(const Tracer & other) {
  21.       m_name = "from " + other.m_name;
  22.       std::cout << "[" << m_name << "]    " << __PRETTY_FUNCTION__ << std::endl;
  23.       return *this;
  24.    }
  25.    ~Tracer() {
  26.       std::cout << "[" << m_name << "]    " << __PRETTY_FUNCTION__ << std::endl;
  27.    }
  28.  
  29.    std::string m_name;
  30. };
  31.  
  32. struct A {
  33. 	A() : a( "init. list" ) {}
  34.     Tracer a;
  35. };
  36.  
  37. struct B {
  38. 	B() {
  39. 		b = Tracer( "c-tor" );
  40. 	}
  41.     Tracer b;
  42. };
  43.  
  44.  
  45. int main() {
  46. 	{
  47. 		A x;
  48. 	}
  49. 	cout << "1" << endl;
  50. 	{
  51. 		B x;
  52. 	}
  53. 	cout << "2" << endl;
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 3432KB
comments (?)
stdin 
Standard input is empty
stdout 
[init. list]    Tracer::Tracer(const string&)
[init. list]    Tracer::~Tracer()
1
[(none)]    Tracer::Tracer()
[c-tor]    Tracer::Tracer(const string&)
[from c-tor]    Tracer& Tracer::operator=(const Tracer&)
[c-tor]    Tracer::~Tracer()
[from c-tor]    Tracer::~Tracer()
2
https://ideone.com/X4AvnZ
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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