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author | Allen Byrne <byrn@hdfgroup.org> | 2020-10-01 16:47:45 (GMT) |
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committer | Allen Byrne <byrn@hdfgroup.org> | 2020-10-01 16:47:45 (GMT) |
commit | 1ba1f2f3222cbe8df0bf601929a4bffd478d7e02 (patch) | |
tree | ae51dfc33cf40432dad25a5088767115a98f195e /examples/h5_group.c | |
parent | 8eef7d295cc3dd134aef0a826f1de4287629996d (diff) | |
download | hdf5-1ba1f2f3222cbe8df0bf601929a4bffd478d7e02.zip hdf5-1ba1f2f3222cbe8df0bf601929a4bffd478d7e02.tar.gz hdf5-1ba1f2f3222cbe8df0bf601929a4bffd478d7e02.tar.bz2 |
Source formatted
Diffstat (limited to 'examples/h5_group.c')
-rw-r--r-- | examples/h5_group.c | 105 |
1 files changed, 51 insertions, 54 deletions
diff --git a/examples/h5_group.c b/examples/h5_group.c index 8e89165..9d705d3 100644 --- a/examples/h5_group.c +++ b/examples/h5_group.c @@ -19,31 +19,29 @@ * in the root group and in the created group. */ - #include "hdf5.h" - -#define H5FILE_NAME "group.h5" -#define RANK 2 +#define H5FILE_NAME "group.h5" +#define RANK 2 static herr_t file_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, - void *opdata); /* Link iteration operator function */ + void *opdata); /* Link iteration operator function */ static herr_t group_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, - void *opdata); /* Link iteration operator function */ + void *opdata); /* Link iteration operator function */ int main(void) { - hid_t file; - hid_t grp; - hid_t dataset, dataspace; - hid_t plist; + hid_t file; + hid_t grp; + hid_t dataset, dataspace; + hid_t plist; - herr_t status; - hsize_t dims[2]; - hsize_t cdims[2]; + herr_t status; + hsize_t dims[2]; + hsize_t cdims[2]; - int idx_f, idx_g; + int idx_f, idx_g; /* * Create a file. @@ -61,16 +59,16 @@ main(void) * GZIP compression with the compression effort set to 6. * Note that compression can be used only when dataset is chunked. */ - dims[0] = 1000; - dims[1] = 20; - cdims[0] = 20; - cdims[1] = 20; + dims[0] = 1000; + dims[1] = 20; + cdims[0] = 20; + cdims[1] = 20; dataspace = H5Screate_simple(RANK, dims, NULL); plist = H5Pcreate(H5P_DATASET_CREATE); - H5Pset_chunk(plist, 2, cdims); - H5Pset_deflate( plist, 6); - dataset = H5Dcreate2(file, "/Data/Compressed_Data", H5T_NATIVE_INT, - dataspace, H5P_DEFAULT, plist, H5P_DEFAULT); + H5Pset_chunk(plist, 2, cdims); + H5Pset_deflate(plist, 6); + dataset = + H5Dcreate2(file, "/Data/Compressed_Data", H5T_NATIVE_INT, dataspace, H5P_DEFAULT, plist, H5P_DEFAULT); /* * Close the first dataset . */ @@ -80,11 +78,11 @@ main(void) /* * Create the second dataset. */ - dims[0] = 500; - dims[1] = 20; + dims[0] = 500; + dims[1] = 20; dataspace = H5Screate_simple(RANK, dims, NULL); - dataset = H5Dcreate2(file, "/Data/Float_Data", H5T_NATIVE_FLOAT, - dataspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + dataset = H5Dcreate2(file, "/Data/Float_Data", H5T_NATIVE_FLOAT, dataspace, H5P_DEFAULT, H5P_DEFAULT, + H5P_DEFAULT); /* *Close the second dataset and file. @@ -105,7 +103,8 @@ main(void) * Access "Compressed_Data" dataset in the group. */ dataset = H5Dopen2(grp, "Compressed_Data", H5P_DEFAULT); - if( dataset < 0) printf(" Dataset 'Compressed-Data' is not found. \n"); + if (dataset < 0) + printf(" Dataset 'Compressed-Data' is not found. \n"); printf("\"/Data/Compressed_Data\" dataset is open \n"); /* @@ -123,7 +122,8 @@ main(void) * hard link "Data_new". */ dataset = H5Dopen2(file, "/Data_new/Compressed_Data", H5P_DEFAULT); - if( dataset < 0) printf(" Dataset is not found. \n"); + if (dataset < 0) + printf(" Dataset is not found. \n"); printf("\"/Data_new/Compressed_Data\" dataset is open \n"); /* @@ -131,7 +131,6 @@ main(void) */ status = H5Dclose(dataset); - /* * Use iterator to see the names of the objects in the root group. */ @@ -141,10 +140,10 @@ main(void) * Unlink name "Data" and use iterator to see the names * of the objects in the file root direvtory. */ - if(H5Ldelete(file, "Data", H5P_DEFAULT) < 0) - printf(" H5Ldelete failed \n"); + if (H5Ldelete(file, "Data", H5P_DEFAULT) < 0) + printf(" H5Ldelete failed \n"); else - printf("\"Data\" is unlinked \n"); + printf("\"Data\" is unlinked \n"); idx_f = H5Literate(file, H5_INDEX_NAME, H5_ITER_INC, NULL, file_info, NULL); @@ -152,7 +151,8 @@ main(void) * Use iterator to see the names of the objects in the group * /Data_new. */ - idx_g = H5Literate_by_name(grp, "/Data_new", H5_INDEX_NAME, H5_ITER_INC, NULL, group_info, NULL, H5P_DEFAULT); + idx_g = + H5Literate_by_name(grp, "/Data_new", H5_INDEX_NAME, H5_ITER_INC, NULL, group_info, NULL, H5P_DEFAULT); /* * Close the file. @@ -173,7 +173,7 @@ file_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, void *opdata) /* avoid compiler warnings */ loc_id = loc_id; opdata = opdata; - linfo = linfo; + linfo = linfo; /* * Display group name. The name is passed to the function by @@ -184,23 +184,22 @@ file_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, void *opdata) return 0; } - /* * Operator function. */ static herr_t group_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, void *opdata) { - hid_t did; /* dataset identifier */ - hid_t tid; /* datatype identifier */ + hid_t did; /* dataset identifier */ + hid_t tid; /* datatype identifier */ H5T_class_t t_class; - hid_t pid; /* data_property identifier */ - hsize_t chunk_dims_out[2]; - int rank_chunk; + hid_t pid; /* data_property identifier */ + hsize_t chunk_dims_out[2]; + int rank_chunk; /* avoid warnings */ opdata = opdata; - linfo = linfo; + linfo = linfo; /* * Open the datasets using their names. @@ -215,38 +214,37 @@ group_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, void *opdata /* * Display dataset information. */ - tid = H5Dget_type(did); /* get datatype*/ + tid = H5Dget_type(did); /* get datatype*/ pid = H5Dget_create_plist(did); /* get creation property list */ /* * Check if dataset is chunked. */ - if(H5D_CHUNKED == H5Pget_layout(pid)) { + if (H5D_CHUNKED == H5Pget_layout(pid)) { /* * get chunking information: rank and dimensions. */ rank_chunk = H5Pget_chunk(pid, 2, chunk_dims_out); - printf("chunk rank %d, dimensions %lu x %lu\n", rank_chunk, - (unsigned long)(chunk_dims_out[0]), - (unsigned long)(chunk_dims_out[1])); + printf("chunk rank %d, dimensions %lu x %lu\n", rank_chunk, (unsigned long)(chunk_dims_out[0]), + (unsigned long)(chunk_dims_out[1])); } else { t_class = H5Tget_class(tid); - if(t_class < 0) { + if (t_class < 0) { puts(" Invalid datatype.\n"); } else { - if(t_class == H5T_INTEGER) + if (t_class == H5T_INTEGER) puts(" Datatype is 'H5T_NATIVE_INTEGER'.\n"); - if(t_class == H5T_FLOAT) + if (t_class == H5T_FLOAT) puts(" Datatype is 'H5T_NATIVE_FLOAT'.\n"); - if(t_class == H5T_STRING) + if (t_class == H5T_STRING) puts(" Datatype is 'H5T_NATIVE_STRING'.\n"); - if(t_class == H5T_BITFIELD) + if (t_class == H5T_BITFIELD) puts(" Datatype is 'H5T_NATIVE_BITFIELD'.\n"); - if(t_class == H5T_OPAQUE) + if (t_class == H5T_OPAQUE) puts(" Datatype is 'H5T_NATIVE_OPAQUE'.\n"); - if(t_class == H5T_COMPOUND) + if (t_class == H5T_COMPOUND) puts(" Datatype is 'H5T_NATIVE_COMPOUND'.\n"); } } @@ -256,4 +254,3 @@ group_info(hid_t loc_id, const char *name, const H5L_info_t *linfo, void *opdata H5Tclose(tid); return 0; } - |