[Bug c++/54521] g++ fails to call explicit constructors in the second step of copy initialization

[tsoae at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54521

--- Comment #2 from Nikolka <tsoae at mail dot ru> 2012-09-08 12:36:29 UTC ---
(In reply to comment #1)
> Works fine with 4.6.3, 4.7.2 20120716 (prerelease) and 
> 4.8.0 20120716 (experimental)
> 
> As requested when submitting the bug, please provide the information requested
> at http://gcc.gnu.org/bugs/ including the command line and output of gcc -v

1) Version info:

Target: i686-pc-mingw32
Configured with: ../src/configure --prefix=/c/temp/gcc/dest
--with-gmp=/c/temp/gcc/gmp --with-mpfr=/c/temp/gcc/mpfr
--with-mpc=/c/temp/gcc/mpc --enable-languages=c,c++ --with-arch=i686
--with-tune=generic --disable-libstdcxx-pch --disable-nls --disable-shared
--disable-sjlj-exceptions --disable-win32-registry --enable-checking=release
--enable-lto
Thread model: win32
gcc version 4.7.1 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-mtune=generic' '-march=i686'

c:/common/c++/mingw/mingw-gcc-4.7.1/bin/../libexec/gcc/i686-pc-mingw32/4.7.1/cc1plus.exe
-quiet -v -iprefix ..\bin\../lib/gcc/i686-pc-mingw32/4.7.1/ test.cpp -quiet
-dumpbase test.cpp -mtune=generic -march=i686 -auxbase test -std=c++11 -version
-o
GNU C++ (GCC) version 4.7.1 (i686-pc-mingw32)
    compiled by GNU C version 4.7.1, GMP version 5.0.5, MPFR version 3.1.0-p10,
MPC version 0.9

Diagnostic message:

test.cpp: In function 'int main()':
test.cpp:9:15: error: no matching function for call to 'X::X(X)'
test.cpp:9:15: note: candidate is:
test.cpp:3:9: note: X::X(int)
test.cpp:3:9: note:   no known conversion for argument 1 from 'X' to 'int'

2) Version info:

Target: i686-pc-linux-gnu
Configured with: .../configure --prefix=.../target --enable-languages=c,c++
Thread model: posix
gcc version 4.8.0 20120826 (experimental) (GCC)

Diagnostic message:

test.cpp: In function ‘int main()’:
test.cpp:9:15: error: no matching function for call to ‘X::X(X)’
         X x = 1; // error: no matching function for call to 'X::X(X)'
               ^
test.cpp:9:15: note: candidate is:
test.cpp:3:9: note: X::X(int)
         X(int) {}
         ^
test.cpp:3:9: note:   no known conversion for argument 1 from ‘X’ to ‘int’