[Bug fortran/54840] New: ieee_arithmetic intrinsic module

["andy.nelson at lanl dot gov" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54840

             Bug #: 54840
           Summary: ieee_arithmetic intrinsic module
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: andy.nelson@lanl.gov


I guess this isn't actually a bug, but an rfe, or something similarly named.
Don't know the right place for putting this into the record, so I'm putting it
into bugzilla in hopes of having it somewhere.

It would be a very nice thing to have available the ieee_arithmetic intrinsic
module, which afaik, does not exist in gfortran yet (see below), at least as of
4.7.0. Probably, for some compiler newbie, it would be a fairly easy task to
implement it. (not me unfortunately...round tuit shortages are a fact of life
in my universe).

In particular the functionality that does things like ieee_is_nan(x) and its
friends would be what I was after most specifically.

Thanks,

Andy Nelson





 gfortran define_kind.f90 
define_kind.f90:17.4:

use ieee_arithmetic
    1
Fatal Error: Can't open module file 'ieee_arithmetic.mod' for reading at (1):
No such file or directory
115 ml-fey : gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/aprojects/hpcsoft/moonlight/gcc/4.7.0/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.7.0/configure
--prefix=/usr/projects/hpcsoft/moonlight/gcc/4.7.0 --enable-bootstrap
--enable-shared --enable-threads=posix --enable-checking=release
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-languages=c,c++,fortran --disable-libgcj --disable-multilib
--with-gmp=/tmp/dog/gmp-5.0.4 --with-mpfr=/tmp/dog/mpfr-3.1.0
--with-mpc=/tmp/dog/mpc-0.9 --with-ppl=/tmp/dog/ppl-0.12
--with-cloog=/tmp/dog/cloog-parma-0.16.1 --enable-cloog-backend=ppl
--with-host-libstdcxx='-L/tmp/dog/gcc/lib64 -lstdc++ -lsupc++ -lm'
Thread model: posix
gcc version 4.7.0 (GCC) 


...gives similar errors for various other spellings like:

120 ml-fey : !gfo
gfortran define_kind.f90
define_kind.f90:17.17:

use, intrinsic :: ieee_arithmetic
                 1
Fatal Error: Can't find an intrinsic module named 'ieee_arithmetic' at (1)