   initialization on construction
  In the end, once this has been compiled, are there any differences between those two :// initializer listclass foo {public:    foo(int value) : bar(value) {}private:    int bar;}// explicit initializationclass foo {public:    foo(int value) {   bar = value;    }private:    int bar;}I'm wondering if it's just a matter of preferences or there is some point for using one or the other...   
C++ FAQ Lite 10.6;  For ints, the compiler will probably generate the same machine code. For class types, the first one is more efficient as the second one will generate a call to the default constructor followed by a call to the assignment operator (unless the compiler has access to the code for both and can optimize it out).   ;  thx a lot guys   