1e2fa738e1
After r269667 which introduced joust_maybe_elide_copy, in C++17 we can elide a constructor if it uses a conversion function that returns a prvalue, and use the conversion function in its stead. This eliding means that if we have a candidate that previously didn't have ->second_conv, it can have it after the elision. This confused the -Wconversion warning because it was assuming that if cand1->second_conv is non-null, so is cand2->second_conv. Here cand1->second_conv was non-null but cand2->second_conv remained null, so it crashed in compare_ics. I checked with clang that both compilers call A::operator B() in C++17 and B::B(A const &) otherwise. * call.c (joust): Don't attempt to warn if ->second_conv is null. * g++.dg/cpp0x/overload-conv-4.C: New test. From-SVN: r277593 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
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| libcc1 | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
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| compile | ||
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| configure | ||
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| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
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| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
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| MAINTAINERS | ||
| Makefile.def | ||
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| missing | ||
| mkdep | ||
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| test-driver | ||
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