"Bronek Kozicki" <brok@rubikon.pl> ha scritto nel messaggio news:3sflue4cj1fw.xzo45r0v4i7n.dlg@40tude.net...
On Thu, 15 Apr 2004 20:34:19 +0200, Andrea Torsello wrote:
I tested the code with gcc 3.3.1 and successfully compiled it with comeau online.
Here you have some results from different compilers.
Great thanks!
MSVC71 non-const lvalue copy contructor explicit copy constructor non-const rvalue move constructor non-const rvalue move constructor non-const rvalue move constructor non-const rvalue move constructor non-const lvalue copy contructor explicit copy constructor non-const rvalue move constructor non-const rvalue move constructor discriminate: non-const lvalue discriminate: const value non-const rvalue move constructor discriminate: non-const rvalue non-const rvalue move constructor discriminate: const value
const rvalues get treated like non-const rvalues. I never noticed it because I never return const temporaries, but the same happens on gcc 3.3.1. Does the same happen with mojo? I ask because the const vs temporary deduction is taken almost verbatim from it
Comeau in relaxed mode (no -a , no -A options set, backend is MSVC71) non-const lvalue copy contructor explicit copy constructor non-const lvalue copy contructor explicit copy constructor non-const lvalue copy contructor const copy constructor const copy constructor discriminate: non-const lvalue discriminate: const value discriminate: non-const lvalue discriminate: const value
Comeau cannot discriminate temporaries in relaxed mode but can in strict mode
Comeau in strict mode (-A options set) non-const lvalue copy contructor explicit copy constructor non-const rvalue move constructor explicit copy constructor non-const rvalue move constructor explicit copy constructor
Looks like all copy constructor of the form X x2(x1); use the explicit constructor. I wonder what happens with the more common X x2=x1;
non-const rvalue move constructor non-const rvalue move constructor non-const lvalue copy contructor const copy constructor non-const rvalue move constructor non-const rvalue move constructor non-const rvalue move constructor const copy constructor discriminate: non-const lvalue discriminate: const value non-const rvalue move constructor discriminate: non-const rvalue non-const rvalue move constructor discriminate: const value
everything else works OK. I have attached a new version with an easyer output to parse. It also changes the constructors from the form X x2(x1); to X x2=x1; Can you please re-run the tests? Thank you. Andrea Torsello P.S. Here's the output for gcc 3.3.1 The const temporaries are not treated as consts in this case as well. Constructors -- Copy non-const lvalue non-const lvalue copy contructor -- Copy const lvalue const copy constructor -- Copy non-const rvalue non-const rvalue move constructor non-const rvalue move constructor -- Copy const rvalue non-const rvalue move constructor const copy constructor Pass by const ref -- Pass non-const lvalue -- Pass const lvalue -- Pass non-const rvalue non-const rvalue move constructor -- Pass const rvalue non-const rvalue move constructor Pass by value -- Pass non-const lvalue non-const lvalue copy contructor -- Pass const lvalue const copy constructor -- Pass non-const rvalue non-const rvalue move constructor non-const rvalue move constructor -- Pass const rvalue non-const rvalue move constructor const copy constructor Discriminate -- Pass non-const lvalue discriminate: non-const lvalue -- Pass const lvalue discriminate: const value -- Pass non-const rvalue -- Pass const rvalue non-const rvalue move constructor discriminate: const value begin 666 move_test.cc 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