size_t scatter(void const * memory, size_t extent, struct field const * field, unsigned fields)
{
byte const * source = (byte const *) (memory);
while ((fields--) && (field->size < extent))
{
if (! field->type)
{
memcopy (field->base, source, field->size);
}
else
{
memfold (field->base, source, field->size);
}
source += field->size;
extent -= field->size;
field++;
}
return (source - (byte *) (memory));
}
size_t gather (void * memory, size_t extent, struct field const * field, unsigned fields)
{
byte * target = (byte *)(memory);
while ((fields--) && (field->size < extent))
{
if (!field->type)
{
memcopy (target, field->base, field->size);
}
else
{
memfold (target, field->base, field->size);
}
target += field->size;
extent -= field->size;
field++;
}
return (target - (byte *)(memory));
}