| Summary: | error: use of ‘X’ before deduction of ‘auto’ | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Craig Schroeder <cas43> |
| Component: | c++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | Keywords: | diagnostic |
| Priority: | P3 | ||
| Version: | 5.1.0 | ||
| Target Milestone: | 8.0 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2015-06-28 00:00:00 | |
Author: paolo Date: Fri Oct 6 19:04:25 2017 New Revision: 253502 URL: https://gcc.gnu.org/viewcvs?rev=253502&root=gcc&view=rev Log: 2017-10-06 Paolo Carlini <paolo.carlini@oracle.com> PR c++/66690 * g++.dg/cpp1y/pr66690.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp1y/pr66690.C Modified: trunk/gcc/testsuite/ChangeLog Fixed in trunk. |
PROBLEM: When compiling the (invalid) code below, two diagnostics are issued. The first is valid (constructor is private). The second diagnostic is perplexing. Fixing the error results in a clean compile. CODE: template<class T> auto foo(T t) {return 3;} class B {B();}; template<class T> class D:public B { D() { T x00; foo(x00); } }; D<int> d; DIAGNOSTIC: prog.cpp:5:5: error: ‘D<T>::D() [with T = int]’ is private D() ^ prog.cpp:11:8: error: within this context D<int> d; ^ prog.cpp: In instantiation of ‘D<T>::D() [with T = int]’: prog.cpp:11:8: required from here prog.cpp:2:10: error: ‘B::B()’ is private class B {B();}; ^ prog.cpp:6:5: error: within this context { ^ prog.cpp:8:12: error: use of ‘auto foo(T) [with T = int]’ before deduction of ‘auto’ foo(x00); ^ VERSION: Using built-in specs. COLLECT_GCC=g++-5 COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.1.0-0ubuntu11~14.04.1' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=c++98 --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 5.1.0 (Ubuntu 5.1.0-0ubuntu11~14.04.1)