diff options
Diffstat (limited to 'src/H5Dio.c')
| -rw-r--r-- | src/H5Dio.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index 9f220c6..8ae0528 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -361,8 +361,7 @@ done: *------------------------------------------------------------------------- */ herr_t -H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, const H5S_t *file_space, - void *buf /*out*/) +H5D__read(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_space, void *buf /*out*/) { H5D_chunk_map_t *fm = NULL; /* Chunk file<->memory mapping */ H5D_io_info_t io_info; /* Dataset I/O info */ @@ -457,21 +456,21 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, const H5S_t */ if (TRUE == H5S_SELECT_SHAPE_SAME(mem_space, file_space) && H5S_GET_EXTENT_NDIMS(mem_space) != H5S_GET_EXTENT_NDIMS(file_space)) { - const void *adj_buf = NULL; /* Pointer to the location in buf corresponding */ - /* to the beginning of the projected mem space. */ + ptrdiff_t buf_adj = 0; /* Attempt to construct projected dataspace for memory dataspace */ if (H5S_select_construct_projection(mem_space, &projected_mem_space, - (unsigned)H5S_GET_EXTENT_NDIMS(file_space), buf, &adj_buf, - type_info.dst_type_size) < 0) + (unsigned)H5S_GET_EXTENT_NDIMS(file_space), + type_info.dst_type_size, &buf_adj) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to construct projected memory dataspace") HDassert(projected_mem_space); - HDassert(adj_buf); + + /* Adjust the buffer by the given amount */ + buf = (void *)(((uint8_t *)buf) + buf_adj); /* Switch to using projected memory dataspace & adjusted buffer */ mem_space = projected_mem_space; - buf = (void *)adj_buf; /* Casting away 'const' OK -QAK */ - } /* end if */ + } /* end if */ /* Retrieve dataset properties */ /* <none needed in the general case> */ @@ -577,8 +576,7 @@ done: *------------------------------------------------------------------------- */ herr_t -H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, const H5S_t *file_space, - const void *buf) +H5D__write(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_space, const void *buf) { H5D_chunk_map_t *fm = NULL; /* Chunk file<->memory mapping */ H5D_io_info_t io_info; /* Dataset I/O info */ @@ -696,20 +694,20 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, const H5S_ */ if (TRUE == H5S_SELECT_SHAPE_SAME(mem_space, file_space) && H5S_GET_EXTENT_NDIMS(mem_space) != H5S_GET_EXTENT_NDIMS(file_space)) { - const void *adj_buf = NULL; /* Pointer to the location in buf corresponding */ - /* to the beginning of the projected mem space. */ + ptrdiff_t buf_adj = 0; /* Attempt to construct projected dataspace for memory dataspace */ if (H5S_select_construct_projection(mem_space, &projected_mem_space, - (unsigned)H5S_GET_EXTENT_NDIMS(file_space), buf, &adj_buf, - type_info.src_type_size) < 0) + (unsigned)H5S_GET_EXTENT_NDIMS(file_space), + type_info.src_type_size, &buf_adj) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to construct projected memory dataspace") HDassert(projected_mem_space); - HDassert(adj_buf); + + /* Adjust the buffer by the given amount */ + buf = (const void *)(((const uint8_t *)buf) + buf_adj); /* Switch to using projected memory dataspace & adjusted buffer */ mem_space = projected_mem_space; - buf = adj_buf; } /* end if */ /* Retrieve dataset properties */ |