// C++N4741 Committee Draft, Standard for Programming Language C++
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/n741.pdf
const char* msg= "C++N4741(230)18 Exception handling [except]p389.cpp";
// Edited by Dr. Ogawa Kiyoshi. Compile procedure and results record.

#include <iostream>
#include <cstdlib>

using namespace std;

void f() {
  goto l1; // ill-formed
  goto l2; // ill-formed
  try {
    goto l1; // OK
    goto l2; // ill-formed
l1:
    ;
  } catch (...) {
l2:
    ;
    goto l1; // ill-formed
    goto l2; // OK
  }
}

typedef int T1  ;
typedef int T2  ;

int condition;
void g() {
lab:
  try {
    T1 t1;
    try {
      T2 t2;
      if (condition )
        goto lab;
    } catch(...) { /* handler 2 */ }
  } catch(...) { /* handler 1 */ }
}

namespace N {
  int f(int);
  class C {
    int i;
    double d;
  public:
    C(int, double);
  };
  C::C(int ii, double id)
try :
    i(f(ii)), d(id) {
// constructor statements
  } catch (...) {
// handles exceptions thrown from the ctor-initializer and from the constructor statements
  }
}

int main() {
  f();
  g();
  cout << msg << endl;
  return EXIT_SUCCESS;

}

$ ../c1.sh p389
$ clang++ p389.cpp  -std=c++2a -Wall
p389.cpp:20:1: error: cannot jump from this goto statement to its label
goto l1; // ill-formed
^
p389.cpp:14:1: note: jump bypasses initialization of try block
try {
^
p389.cpp:16:1: error: cannot jump from this goto statement to its label
goto l2; // ill-formed
^
p389.cpp:18:3: note: jump bypasses initialization of catch block
} catch (...) {
  ^
p389.cpp:13:1: error: cannot jump from this goto statement to its label
goto l2; // ill-formed
^
p389.cpp:18:3: note: jump bypasses initialization of catch block
} catch (...) {
  ^
p389.cpp:12:1: error: cannot jump from this goto statement to its label
goto l1; // ill-formed
^
p389.cpp:14:1: note: jump bypasses initialization of try block
try {
^
p389.cpp:33:4: warning: unused variable 't2' [-Wunused-variable]
T2 t2;
   ^
p389.cpp:31:4: warning: unused variable 't1' [-Wunused-variable]
T1 t1;
   ^
p389.cpp:44:8: warning: private field 'd' is not used [-Wunused-private-field]
double d;
       ^
3 warnings and 4 errors generated.

// C++N4741 Committee Draft, Standard for Programming Language C++
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/n741.pdf
const char* msg= "C++N4741(230)18 Exception handling [except]p389a.cpp";
// Edited by Dr. Ogawa Kiyoshi. Compile procedure and results record.

#include <iostream>
#include <cstdlib>

using namespace std;

void f() {
///goto l1; // ill-formed
///goto l2; // ill-formed
  try {
    goto l1; // OK
///goto l2; // ill-formed
l1:
    ;
  } catch (...) {
l2:
    ;
///goto l1; // ill-formed
    goto l2; // OK
  }
}

typedef int T1  ;
typedef int T2  ;

int condition;
void g() {
lab:
  try {
    T1 t1;
    cout << "t1="<<(t1=1)<<endl;
    try {
      T2 t2;
      cout <<"t2="<<(t2=2)<<endl;
      if (condition )
        goto lab;
    } catch(...) { /* handler 2 */ }
  } catch(...) { /* handler 1 */ }
}

namespace N {
  int f(int) {
    return true;
  };/// add {} for linke error
  class C {
    int i;
    double d;
  public:
    C(int, double);
    void h() {
      cout << "d="<<d<<endl;
    }
  };
  C::C(int ii, double id)
try :
    i(f(ii)), d(id) {
// constructor statements
  } catch (...) {
// handles exceptions thrown from the ctor-initializer and from the constructor statements
  }
}

int main() {
  f();
  g();
  cout << msg << endl;
  return EXIT_SUCCESS;

}

$ ../cpla.sh p389a
$ clang++ p389a.cpp -std=c++03 -Wall
t1=1
t2=2
C++N4741(230)18 Exception handling [except]p389a.cpp
$ clang++ p389a.cpp -std=c++2a -Wall
t1=1
t2=2
C++N4741(230)18 Exception handling [except]p389a.cpp

$ g++-8 p389a.cpp -std=c++03  -Wall
t1=1
t2=2
C++N4741(230)18 Exception handling [except]p389a.cpp

$ g++-8 p389a.cpp -std=c++2a  -Wall
t1=1
t2=2
C++N4741(230)18 Exception handling [except]p389a.cpp