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throwing statement in derived class constructor

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throwing statement in derived class constructor

 
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  #1
Jan 30th, 2008
i noticed that when u compile with visual C++ u don't need the throw statement in function headers, but when u compile with g++ u need to explicitly mention all the exceptions u're function might throw.
i mean:
C++ Syntax (Toggle Plain Text) 
  1. void functionx() throw ( exception1 , exception 2)
  2. {
  3. //blabla
  4. throw exception1;
  5. //blabla
  6. throw exception2;
  7. }
but if u have a base class A and a derived class B, how do u write the throw statement for the B class constructor?
because

B::B() : a() throw ( exception1 , exception2 )
gives the
errorr C2612: trailing 'throw' illegal in base/member initializer list

thx
Last edited by Ancient Dragon; Jan 30th, 2008 at 7:14 am. Reason: add code tags
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Re: throwing statement in derived class constructor

 
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  #2
Jan 30th, 2008
c++ Syntax (Toggle Plain Text) 
  1. struct A
  2. {
  3.   A( int i ) throw(char,int,double) : value(i) {}
  4.   int value ;
  5. };
  6.  
  7. struct B : A
  8. {
  9.   B() throw(char,int,double) ;
  10. };
  11.  
  12. B::B() throw(char,int,double) : A(20) {}
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Re: throwing statement in derived class constructor

 
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  #3
Jan 30th, 2008
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Originally Posted by vijayan121 View Post
c++ Syntax (Toggle Plain Text) 
  1. struct A
  2. {
  3.   A( int i ) throw(char,int,double) : value(i) {}
  4.   int value ;
  5. };
  6.  
  7. struct B : A
  8. {
  9.   B() throw(char,int,double) ;
  10. };
  11.  
  12. B::B() throw(char,int,double) : A(20) {}
thx
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