Hi!
I am using the gfortran compiler in Ubuntu 8.10 (gfortran 4.3.2).
I ran into a bug with calling mkdtemp(3) via the BIND(C) feature.
In some way gfortran truncates the string on return from the
Fortran subroutine. All results seems to be Ok inside
the Fortran subroutine but the caller does not get the proper value?
Please look at the examples below and mkdtemp(3) as they explain
better than I can with my poor English. :-)
Wrong results from gfortran:
na56:1d_longtime>gfortran -o callbug callbug.f90
na56:1d_longtime>./callbug
ctemp = /tmp/foo.XXXXXX
ctemp after call: /tmp/foo.HMq3kW
template = [/tmp/foo.HMq3kW]
template = .HMq3kW
na56:1d_longtime>
Correct results from sunstudio 12
na56:1d_longtime>sunf95 -o callbug callbug.f90
na56:1d_longtime>./callbug
ctemp = /tmp/foo.XXXXXX
ctemp after call: /tmp/foo.lEniI6
template = [/tmp/foo.lEniI6]
template = /tmp/foo.lEniI6
na56:1d_longtime>
I will attach the source code in another post.
Thank you for a great compiler!
Henrik Holst
--
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.2-1ubuntu11'
--with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3
--program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug
--enable-objc-gc --enable-mpfr --enable-targets=all --enable-checking=release
--build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu11)
--
Summary: string truncated on return from subroutine (calling
mkdtemp bind(c))
Product: gcc
Version: 4.3.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: holst at matmech dot com
GCC target triplet: i486-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38082
