diff options
Diffstat (limited to 'src/H5Zscaleoffset.c')
| -rw-r--r-- | src/H5Zscaleoffset.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/H5Zscaleoffset.c b/src/H5Zscaleoffset.c index 4bfc8b1..eb3c6e6 100644 --- a/src/H5Zscaleoffset.c +++ b/src/H5Zscaleoffset.c @@ -806,6 +806,11 @@ H5Z_set_local_scaleoffset(hid_t dcpl_id, hid_t type_id, hid_t space_id) if(NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype") +#ifdef H5_CLEAR_MEMORY + /* Initialize the parameters to a known state */ + HDmemset(cd_values, 0, sizeof(cd_values)); +#endif /* H5_CLEAR_MEMORY */ + /* Get the filter's current parameters */ if(H5P_get_filter_by_id(dcpl_plist, H5Z_FILTER_SCALEOFFSET, &flags, &cd_nelmts, cd_values, (size_t)0, NULL, NULL) < 0) HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't get scaleoffset parameters") @@ -1182,6 +1187,14 @@ H5Z_filter_scaleoffset(unsigned flags, size_t cd_nelmts, const unsigned cd_value for(i = 0; i < sizeof(unsigned long long); i++) ((unsigned char *)outbuf)[5+i] = (unsigned char)((minval & ((unsigned long long)0xff << i*8)) >> i*8); +#ifdef H5_CLEAR_MEMORY + /* Zero out remaining, unused bytes */ + /* (Looks like an error in the original determination of how many + * bytes would be needed for parameters. - QAK, 2010/08/19) + */ + HDmemset(outbuf + 13, 0, (size_t)8); +#endif /* H5_CLEAR_MEMORY */ + /* special case: minbits equal to full precision */ if(minbits == p.size * 8) { HDmemcpy(outbuf + buf_offset, *buf, nbytes); |