https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88741
Bug ID: 88741
Summary: [9 Regression] Spurious "too long" error inside
template
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: steinar+gcc at gunderson dot no
Target Milestone: ---
Hi,
Since recent GCC 9 snapshots, this code now fails:
template <class T>
void foo() {
char row[] = {"test"};
}
void bar() {
foo<int>();
}
I believe it's spurious, since the code works fine outside a template. Works
with GCC 8 and Clang 7.
atum17:~> /usr/lib/gcc-snapshot/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/usr/lib/gcc-snapshot/bin/g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc-snapshot/libexec/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 20190102-1'
--with-bugurl=file:///usr/share/doc/gcc-snapshot/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++
--prefix=/usr/lib/gcc-snapshot --with-gcc-major-version-only --program-prefix=
--enable-shared --enable-linker-build-id --disable-nls --with-sysroot=/
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --with-system-zlib
--with-target-system-zlib --enable-objc-gc=auto --enable-multiarch
--disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none --enable-checking=yes
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.0.0 20190102 (experimental) [trunk revision 267505] (Debian
20190102-1)
atum17:~> /usr/lib/gcc-snapshot/bin/g++ -c test.cc
test.cc: In instantiation of 'void foo() [with T = int]':
test.cc:3:23: required from here
test.cc:1:47: error: initializer-string for array of chars is too long
[-fpermissive]
1 | template <class T> void foo() { char row[] = {"test"}; }
|
