https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88564
Bug ID: 88564
Summary: expected primary-expression error with operator=<X>
invocation
Product: gcc
Version: 8.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jdtournier at gmail dot com
Target Milestone: ---
I'm encountering compile failures in my project using later builds of gcc 8.2.1
on MSYS2 MinGW64 (running on Windows 10). I originally reported this here:
https://stackoverflow.com/q/53842888/3244166.
I've stripped this back to a very minimal code example below that triggers the
error:
test.cpp:
---------
template <typename X> class Test {
public:
template<typename Y>
X& operator=(const Y& other)
{
return *this;
}
X& operator=(const X& other)
{
return operator=<X>(other);
}
};
int main () { return 0; }
-------
Compiling with:
$ g++ test.cpp -o test
results in error:
test.cpp: In member function 'X& Test<X>::operator=(const X&)':
test.cpp:12:25: error: expected primary-expression before '>' token
return operator=<X>(other);
^
When I compile with the previous g++ 8.2.1 snapshot available (20181123), the
example compiles fine with no errors. The error only occurs with g++ 8.2.1
snapshot 20181130 (and also 20181207) as provided by the MSYS2 project
(detailed specs below).
Thank you!
Donald.
Problematic version of g++:
$ g++ -v
Using built-in specs.
COLLECT_GCC=C:\Users\donald\msys64\mingw64\bin\g++.exe
COLLECT_LTO_WRAPPER=C:/Users/donald/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.2.1/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-8-20181130/configure --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
--with-tune=generic --enable-languages=ada,c,lto,c++,objc,obj-c++,fortran
--enable-shared --enable-static --enable-libatomic --enable-threads=posix
--enable-graphite --enable-fully-dynamic-string
--enable-libstdcxx-filesystem-ts=yes --enable-libstdcxx-time=yes
--disable-libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check
--enable-lto --enable-libgomp --disable-multilib --enable-checking=release
--disable-rpath --disable-win32-registry --disable-nls --disable-werror
--disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64
--with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64
--with-pkgversion='Rev1, Built by MSYS2 project'
--with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
--with-gnu-ld
Thread model: posix
gcc version 8.2.1 20181130 (Rev1, Built by MSYS2 project)
Version of g++ that does NOT trigger the error:
$ g++ -v
Using built-in specs.
COLLECT_GCC=C:\Users\donald\msys64\mingw64\bin\g++.exe
COLLECT_LTO_WRAPPER=C:/Users/donald/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.2.1/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-8-20181123/configure --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
--with-tune=generic --enable-languages=ada,c,lto,c++,objc,obj-c++,fortran
--enable-shared --enable-static --enable-libatomic --enable-threads=posix
--enable-graphite --enable-fully-dynamic-string
--enable-libstdcxx-filesystem-ts=yes --enable-libstdcxx-time=yes
--disable-libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check
--enable-lto --enable-libgomp --disable-multilib --enable-checking=release
--disable-rpath --disable-win32-registry --disable-nls --disable-werror
--disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64
--with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64
--with-pkgversion='Rev1, Built by MSYS2 project'
--with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
--with-gnu-ld
Thread model: posix
gcc version 8.2.1 20181123 (Rev1, Built by MSYS2 project)
