Member initialization via member initialization list vs. statement in constructor body

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1 total messages Started by David Franke Mon, 07 Aug 1989 15:39

#335

Author: David Franke
Date: Mon, 07 Aug 1989 15:39

44 lines
1372 bytes

g++ version 1.35.1- compiles the following without incident:

    class class1 {
     public:
      int var1;
    };

    class class2 : public class1 {
     public:
      class2 ( int val ) { var1 = val; }
    };

    class class3 : public class1 {
     public:
      class3 ( int val ) { var1 = val+1; }
    };

but reports:

In method struct class3 *class3::class3 (int):
testb1.c:14: multiple initializations given for member `var1'

on the following source:

    class class1 {
     public:
      int var1;
    };

    class class2 : public class1 {
     public:
      class2 ( int val ) : var1(val) {}
    };

    class class3 : public class1 {
     public:
      class3 ( int val ) : var1(val+1) {}
    };

Aren't these equivalent?  Lippman, Section 6.1 (p. 242-243) 
leads me to believe they are.
 David Franke, MCC CAD Program | ARPA: franke@mcc.com | Phone: [512] 338-3641
 UUCP: {uunet,harvard,gatech,pyramid}!cs.utexas.edu!milano!cadillac!franke

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