define(START_FOREACH_FUNCTION,
`
extern void name`'rtype_qual`_'atype_code (rtype * const restrict retarray,
atype * const restrict array);
export_proto(name`'rtype_qual`_'atype_code);
void
name`'rtype_qual`_'atype_code (rtype * const restrict retarray,
atype * const restrict array)
{
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type sstride[GFC_MAX_DIMENSIONS];
index_type dstride;
const atype_name *base;
rtype_name *dest;
index_type rank;
index_type n;
rank = GFC_DESCRIPTOR_RANK (array);
if (rank <= 0)
runtime_error ("Rank of array needs to be > 0");
if (retarray->data == NULL)
{
retarray->dim[0].lbound = 0;
retarray->dim[0].ubound = rank-1;
retarray->dim[0].stride = 1;
retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
retarray->offset = 0;
retarray->data = internal_malloc_size (sizeof (rtype_name) * rank);
}
else
{
if (GFC_DESCRIPTOR_RANK (retarray) != 1)
runtime_error ("rank of return array does not equal 1");
if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank)
runtime_error ("dimension of return array incorrect");
}
dstride = retarray->dim[0].stride;
dest = retarray->data;
for (n = 0; n < rank; n++)
{
sstride[n] = array->dim[n].stride;
extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
count[n] = 0;
if (extent[n] <= 0)
{
/* Set the return value. */
for (n = 0; n < rank; n++)
dest[n * dstride] = 0;
return;
}
}
base = array->data;
/* Initialize the return value. */
for (n = 0; n < rank; n++)
dest[n * dstride] = 0;
{
')define(START_FOREACH_BLOCK,
` while (base)
{
{
/* Implementation start. */
')define(FINISH_FOREACH_FUNCTION,
` /* Implementation end. */
}
/* Advance to the next element. */
count[0]++;
base += sstride[0];
n = 0;
while (count[n] == extent[n])
{
/* When we get to the end of a dimension, reset it and increment
the next dimension. */
count[n] = 0;
/* We could precalculate these products, but this is a less
frequently used path so probably not worth it. */
base -= sstride[n] * extent[n];
n++;
if (n == rank)
{
/* Break out of the loop. */
base = NULL;
break;
}
else
{
count[n]++;
base += sstride[n];
}
}
}
}
}')define(START_MASKED_FOREACH_FUNCTION,
`
extern void `m'name`'rtype_qual`_'atype_code (rtype * const restrict,
atype * const restrict, gfc_array_l4 * const restrict);
export_proto(`m'name`'rtype_qual`_'atype_code);
void
`m'name`'rtype_qual`_'atype_code (rtype * const restrict retarray,
atype * const restrict array,
gfc_array_l4 * const restrict mask)
{
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type sstride[GFC_MAX_DIMENSIONS];
index_type mstride[GFC_MAX_DIMENSIONS];
index_type dstride;
rtype_name *dest;
const atype_name *base;
GFC_LOGICAL_4 *mbase;
int rank;
index_type n;
rank = GFC_DESCRIPTOR_RANK (array);
if (rank <= 0)
runtime_error ("Rank of array needs to be > 0");
if (retarray->data == NULL)
{
retarray->dim[0].lbound = 0;
retarray->dim[0].ubound = rank-1;
retarray->dim[0].stride = 1;
retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
retarray->offset = 0;
retarray->data = internal_malloc_size (sizeof (rtype_name) * rank);
}
else
{
if (GFC_DESCRIPTOR_RANK (retarray) != 1)
runtime_error ("rank of return array does not equal 1");
if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank)
runtime_error ("dimension of return array incorrect");
}
dstride = retarray->dim[0].stride;
dest = retarray->data;
for (n = 0; n < rank; n++)
{
sstride[n] = array->dim[n].stride;
mstride[n] = mask->dim[n].stride;
extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
count[n] = 0;
if (extent[n] <= 0)
{
/* Set the return value. */
for (n = 0; n < rank; n++)
dest[n * dstride] = 0;
return;
}
}
base = array->data;
mbase = mask->data;
if (GFC_DESCRIPTOR_SIZE (mask) != 4)
{
/* This allows the same loop to be used for all logical types. */
assert (GFC_DESCRIPTOR_SIZE (mask) == 8);
for (n = 0; n < rank; n++)
mstride[n] <<= 1;
mbase = (GFOR_POINTER_L8_TO_L4 (mbase));
}
/* Initialize the return value. */
for (n = 0; n < rank; n++)
dest[n * dstride] = 0;
{
')define(START_MASKED_FOREACH_BLOCK, `START_FOREACH_BLOCK')define(FINISH_MASKED_FOREACH_FUNCTION,
` /* Implementation end. */
}
/* Advance to the next element. */
count[0]++;
base += sstride[0];
mbase += mstride[0];
n = 0;
while (count[n] == extent[n])
{
/* When we get to the end of a dimension, reset it and increment
the next dimension. */
count[n] = 0;
/* We could precalculate these products, but this is a less
frequently used path so probably not worth it. */
base -= sstride[n] * extent[n];
mbase -= mstride[n] * extent[n];
n++;
if (n == rank)
{
/* Break out of the loop. */
base = NULL;
break;
}
else
{
count[n]++;
base += sstride[n];
mbase += mstride[n];
}
}
}
}
}')define(FOREACH_FUNCTION,
`START_FOREACH_FUNCTION
$1
START_FOREACH_BLOCK
$2
FINISH_FOREACH_FUNCTION')define(MASKED_FOREACH_FUNCTION,
`START_MASKED_FOREACH_FUNCTION
$1
START_MASKED_FOREACH_BLOCK
$2
FINISH_MASKED_FOREACH_FUNCTION')define(SCALAR_FOREACH_FUNCTION,
`
extern void `s'name`'rtype_qual`_'atype_code (rtype * const restrict,
atype * const restrict, GFC_LOGICAL_4 *);
export_proto(`s'name`'rtype_qual`_'atype_code);
void
`s'name`'rtype_qual`_'atype_code (rtype * const restrict retarray,
atype * const restrict array,
GFC_LOGICAL_4 * mask)
{
index_type rank;
index_type dstride;
index_type n;
rtype_name *dest;
if (*mask)
{
name`'rtype_qual`_'atype_code (retarray, array);
return;
}
rank = GFC_DESCRIPTOR_RANK (array);
if (rank <= 0)
runtime_error ("Rank of array needs to be > 0");
if (retarray->data == NULL)
{
retarray->dim[0].lbound = 0;
retarray->dim[0].ubound = rank-1;
retarray->dim[0].stride = 1;
retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
retarray->offset = 0;
retarray->data = internal_malloc_size (sizeof (rtype_name) * rank);
}
else
{
if (GFC_DESCRIPTOR_RANK (retarray) != 1)
runtime_error ("rank of return array does not equal 1");
if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank)
runtime_error ("dimension of return array incorrect");
}
dstride = retarray->dim[0].stride;
dest = retarray->data;
for (n = 0; n<rank; n++)
dest[n * dstride] = $1 ;
}')