https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109662
Bug ID: 109662
Summary: bad namelist input but gfortran accepted it
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: john.harper at vuw dot ac.nz
Target Milestone: ---
This program compiled and ran with the std=f2018 option though it has a comma
between the namelist group name and the variable name, which I and ifort
believe is non-standard. The program:
program testnmlread
use iso_fortran_env,only: compiler_version,compiler_options,output_unit
implicit none
character(16) :: list = '&stuff, n = 666/'
integer :: n
namelist/stuff/n
print *,'Compiler version = ',trim(compiler_version())
print *,'Compiler options = ',trim(compiler_options())
read(list,nml=stuff)
write(output_unit,nml=stuff)
end program testnmlread
The output:
Compiler version = GCC version 12.1.0
Compiler options = -mtune=generic -march=x86-64 -g -std=f2018
-fpre-include=/usr/include/finclude/math-vector-fortran.h
&STUFF
N=666 ,
/
Result of gfortran -v :
Using built-in specs.
COLLECT_GCC=gfortran-12
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/12/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
12.1.0-2ubuntu1~22.04' --with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-12
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-vtable-verify --enable-plugin
--enable-default-pie --with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none=/build/gcc-12-sZcx2y/gcc-12-12.1.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-12-sZcx2y/gcc-12-12.1.0/debian/tmp-gcn/usr
--enable-offload-defaulted --without-cuda-driver --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.1.0 (Ubuntu 12.1.0-2ubuntu1~22.04)
