diff options
Diffstat (limited to 'c++/examples/h5tutr_subset.cpp')
| -rw-r--r-- | c++/examples/h5tutr_subset.cpp | 89 |
1 files changed, 41 insertions, 48 deletions
diff --git a/c++/examples/h5tutr_subset.cpp b/c++/examples/h5tutr_subset.cpp index 0747880..5c62c89 100644 --- a/c++/examples/h5tutr_subset.cpp +++ b/c++/examples/h5tutr_subset.cpp @@ -6,7 +6,7 @@ * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the COPYING file, which can be found at the root of the source code * - * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ @@ -24,58 +24,56 @@ using std::endl; #include "H5Cpp.h" using namespace H5; -const H5std_string FILE_NAME("h5tutr_subset.h5"); -const H5std_string DATASET_NAME("IntArray"); +const H5std_string FILE_NAME("h5tutr_subset.h5"); +const H5std_string DATASET_NAME("IntArray"); -const int RANK = 2; -const int DIM0_SUB = 3; // subset dimensions -const int DIM1_SUB = 4; -const int DIM0 = 8; // size of dataset -const int DIM1 = 10; +const int RANK = 2; +const int DIM0_SUB = 3; // subset dimensions +const int DIM1_SUB = 4; +const int DIM0 = 8; // size of dataset +const int DIM1 = 10; -int main (void) +int +main(void) { - int i,j; - int data[DIM0][DIM1], sdata[DIM0_SUB][DIM1_SUB], rdata[DIM0][DIM1]; + int i, j; + int data[DIM0][DIM1], sdata[DIM0_SUB][DIM1_SUB], rdata[DIM0][DIM1]; // Try block to detect exceptions raised by any of the calls inside it - try - { + try { // Turn off the auto-printing when failure occurs so that we can // handle the errors appropriately Exception::dontPrint(); // --------------------------------------------------- - // Create a new file using the default property lists. - // Then create a dataset and write data to it. + // Create a new file using the default property lists. + // Then create a dataset and write data to it. // Close the file and dataset. // --------------------------------------------------- - - H5File file(FILE_NAME, H5F_ACC_TRUNC); - hsize_t dims[2]; - dims[0] = DIM0; - dims[1] = DIM1; - DataSpace dataspace = DataSpace (RANK, dims); + H5File file(FILE_NAME, H5F_ACC_TRUNC); - DataSet dataset(file.createDataSet( DATASET_NAME, - PredType::STD_I32BE, dataspace) ); + hsize_t dims[2]; + dims[0] = DIM0; + dims[1] = DIM1; + DataSpace dataspace = DataSpace(RANK, dims); + DataSet dataset(file.createDataSet(DATASET_NAME, PredType::STD_I32BE, dataspace)); for (j = 0; j < DIM0; j++) { - for (i = 0; i < DIM1; i++) - if (i< (DIM1/2)) + for (i = 0; i < DIM1; i++) + if (i < (DIM1 / 2)) data[j][i] = 1; - else + else data[j][i] = 2; - } + } dataset.write(data, PredType::NATIVE_INT); cout << endl << "Data Written to File:" << endl; for (j = 0; j < DIM0; j++) { for (i = 0; i < DIM1; i++) - cout << " " << data[j][i]; + cout << " " << data[j][i]; cout << endl; } @@ -94,20 +92,20 @@ int main (void) file.openFile(FILE_NAME, H5F_ACC_RDWR); dataset = file.openDataSet(DATASET_NAME); - // Specify size and shape of subset to write. + // Specify size and shape of subset to write. offset[0] = 1; offset[1] = 2; - count[0] = DIM0_SUB; - count[1] = DIM1_SUB; + count[0] = DIM0_SUB; + count[1] = DIM1_SUB; stride[0] = 1; stride[1] = 1; block[0] = 1; block[1] = 1; - + // Define Memory Dataspace. Get file dataspace and select // a subset from the file dataspace. @@ -117,7 +115,7 @@ int main (void) DataSpace memspace(RANK, dimsm, NULL); dataspace = dataset.getSpace(); - dataspace.selectHyperslab(H5S_SELECT_SET, count, offset, stride, block); + dataspace.selectHyperslab(H5S_SELECT_SET, count, offset, stride, block); // Write a subset of data to the dataset, then read the // entire dataset back from the file. @@ -126,17 +124,16 @@ int main (void) cout << " offset=1x2 stride=1x1 count=3x4 block=1x1" << endl; for (j = 0; j < DIM0_SUB; j++) { for (i = 0; i < DIM1_SUB; i++) - sdata[j][i] = 5; - } - + sdata[j][i] = 5; + } + dataset.write(sdata, PredType::NATIVE_INT, memspace, dataspace); dataset.read(rdata, PredType::NATIVE_INT); - cout << endl << "Data in File after Subset is Written:" << endl; for (i = 0; i < DIM0; i++) { - for (j = 0; j < DIM1; j++) - cout << " " << rdata[i][j]; + for (j = 0; j < DIM1; j++) + cout << " " << rdata[i][j]; cout << endl; } cout << endl; @@ -148,29 +145,25 @@ int main (void) dataset.close(); file.close(); - } // end of try block + } // end of try block // catch failure caused by the H5File operations - catch(FileIException error) - { + catch (FileIException error) { error.printErrorStack(); return -1; } // catch failure caused by the DataSet operations - catch(DataSetIException error) - { + catch (DataSetIException error) { error.printErrorStack(); return -1; } // catch failure caused by the DataSpace operations - catch(DataSpaceIException error) - { + catch (DataSpaceIException error) { error.printErrorStack(); return -1; } - return 0; // successfully terminated + return 0; // successfully terminated } - |