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re PR libfortran/31001 ([4.1 only] PACK crashes on zero-sized arrays)

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PR libfortran/31001

        * intrinsics/pack_generic.c (pack_internal): Add special checks
        for zero-sized arrays.

        * gfortran.dg/zero_sized_3.f90: New test.

From-SVN: r122507
This commit is contained in:
Francois-Xavier Coudert 2007-03-03 17:37:54 +01:00 committed by François-Xavier Coudert
parent 4e09692de3
commit 42d53ef301
4 changed files with 37 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2007-03-03 Francois-Xavier Coudert <coudert@clipper.ens.fr>
PR libfortran/31001
* gfortran.dg/zero_sized_3.f90: New test.
2007-03-03 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR c++/15787

20
gcc/testsuite/gfortran.dg/zero_sized_3.f90 Normal file
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@ -0,0 +1,20 @@
! { dg-do run }
! Testcase for PR libfortran/31001
implicit none
integer :: i, j, k
integer, allocatable :: mm(:)
logical, allocatable :: mask(:)
do i = 2, -2, -1
do k = 0, 1
allocate (mm(i), mask(i))
mm(:) = k
mask(:) = (mm == 0)
j = count (mask)
print *, pack (mm, mask)
if (size (pack (mm, mask)) /= j) call abort
deallocate (mm, mask)
end do
end do
end

6
libgfortran/ChangeLog
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@ -1,3 +1,9 @@
2007-03-03 Francois-Xavier Coudert <coudert@clipper.ens.fr>
PR libfortran/31001
* intrinsics/pack_generic.c (pack_internal): Add special checks
for zero-sized arrays.
2007-03-01 Brooks Moses <brooks.moses@codesourcery.com>
* Makefile.am: Add dummy install-pdf target.

6
libgfortran/intrinsics/pack_generic.c
View File

@ -93,15 +93,19 @@ pack_internal (gfc_array_char *ret, const gfc_array_char *array,
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
int zero_sized;
index_type n;
index_type dim;
index_type nelem;
dim = GFC_DESCRIPTOR_RANK (array);
zero_sized = 0;
for (n = 0; n < dim; n++)
{
count[n] = 0;
extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
if (extent[n] <= 0)
zero_sized = 1;
sstride[n] = array->dim[n].stride * size;
mstride[n] = mask->dim[n].stride;
}
@ -154,6 +158,8 @@ pack_internal (gfc_array_char *ret, const gfc_array_char *array,
const GFC_LOGICAL_4 *m = mptr;
total = 0;
if (zero_sized)
m = NULL;
while (m)
{