🚀 go-pugleaf

Jean-Louis Moser (jlm@two-oo-one.fr) wrote:
: | According to the standard, are the two lines of the main
: | equivalent ? My Opinion is yes, but one of my compilers would
: | like to access copy contructor to be happy with the
: | second line as if it would like to build a2 from a temporary A
: | which would be build from the int value 99. If we make copy
: | constructor public, this one isn't called, but the compiler
: | is happy. Thank you for answers.

: #include <iostream.h>

: class A {
: public:
:     A (int i) {cout << "A" << endl;}
: private:
:     A (const A&) {cout << "COPY" << endl;}
: };

: void main ()
: {
:     A a1 (100);
:     A a2 = 99;
: }

Have you tried to remove the copy constuctor?
You are right! S. Lippman described this characteristic in his
book, 'C++ Primer'

Your compiler may not following the C++ standard!
Can you tell us what brand it was? :)

--
! Anthony S. H. Lee [Lee, Shih Hao]         Internet: tony@ews360.nec.com.tw
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