diff options
Diffstat (limited to 'src/H5Dint.c')
| -rw-r--r-- | src/H5Dint.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/src/H5Dint.c b/src/H5Dint.c index f3e0b3c..a4f5c8d 100644 --- a/src/H5Dint.c +++ b/src/H5Dint.c @@ -1750,16 +1750,23 @@ H5D_alloc_storage(H5D_t *dset/*in,out*/, hid_t dxpl_id, H5D_time_alloc_t time_al case H5D_COMPACT: /* Check if space is already allocated */ if(NULL == layout->storage.u.compact.buf) { - /* Reserve space in layout header message for the entire array. */ - HDassert(layout->storage.u.compact.size > 0); - if(NULL == (layout->storage.u.compact.buf = H5MM_malloc(layout->storage.u.compact.size))) - HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate memory for compact dataset") - if(!full_overwrite) - HDmemset(layout->storage.u.compact.buf, 0, layout->storage.u.compact.size); - layout->storage.u.compact.dirty = TRUE; - - /* Indicate that we should initialize storage space */ - must_init_space = TRUE; + /* Reserve space in layout header message for the entire array. + * Starting from the 1.8.7 release, we allow dataspace to have + * zero dimension size. So the storage size can be zero. + * SLU 2011/4/4 */ + if(layout->storage.u.compact.size > 0) { + if(NULL == (layout->storage.u.compact.buf = H5MM_malloc(layout->storage.u.compact.size))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate memory for compact dataset") + if(!full_overwrite) + HDmemset(layout->storage.u.compact.buf, 0, layout->storage.u.compact.size); + layout->storage.u.compact.dirty = TRUE; + + /* Indicate that we should initialize storage space */ + must_init_space = TRUE; + } else { + layout->storage.u.compact.dirty = FALSE; + must_init_space = FALSE; + } } /* end if */ break; |