http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51664
Bug #: 51664
Summary: comparison incorrectly treated as template
instantiation
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: [email protected]
ReportedBy: [email protected]
The following valid C++ code is rejected by GCC 4.6.1:
---
template<class T> bool foo(T x){return x.foo<1;}
---
$ g++ bug.cpp
---
bug.cpp: In function ‘bool foo(T)’:
bug.cpp:1:42: error: parse error in template argument list
---
(The following similar code compiles:
template<class T> bool bar(T x){return x.foo<1;}
while the compilation of this code shows another instance of this broken
behavior:
template<class T> bool foo(T x){return x.qux<1;}
template<class T> bool bar(T x){return x.foo<1;} )
further details:
$ cat bug.cpp
template<class T> bool foo(T x){return x.foo<1;}
$ g++ -save-temps bug.cpp
bug.cpp: In function ‘bool foo(T)’:
bug.cpp:1:42: error: parse error in template argument list
$ cat bug.ii
# 1 "bug.cpp"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "bug.cpp"
template<class T> bool foo(T x){return x.foo<1;}
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.6.1-9ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr
--program-suffix=-4.6 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin
--enable-objc-gc --disable-werror --with-arch-32=i686 --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 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
