diff options
Diffstat (limited to 'c++/examples/chunks.cpp')
| -rw-r--r-- | c++/examples/chunks.cpp | 84 |
1 files changed, 38 insertions, 46 deletions
diff --git a/c++/examples/chunks.cpp b/c++/examples/chunks.cpp index 03e2855..fdcb6d3 100644 --- a/c++/examples/chunks.cpp +++ b/c++/examples/chunks.cpp @@ -28,20 +28,20 @@ using std::endl; #include "H5Cpp.h" using namespace H5; -const H5std_string FILE_NAME( "SDSextendible.h5" ); -const H5std_string DATASET_NAME( "ExtendibleArray" ); -const int NX = 10; -const int NY = 5; -const int RANK = 2; -const int RANKC = 1; - -int main (void) +const H5std_string FILE_NAME("SDSextendible.h5"); +const H5std_string DATASET_NAME("ExtendibleArray"); +const int NX = 10; +const int NY = 5; +const int RANK = 2; +const int RANKC = 1; + +int +main(void) { - hsize_t i, j; + hsize_t i, j; // 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 @@ -51,8 +51,8 @@ int main (void) /* * Open the file and the dataset. */ - H5File file( FILE_NAME, H5F_ACC_RDONLY ); - DataSet dataset = file.openDataSet( DATASET_NAME ); + H5File file(FILE_NAME, H5F_ACC_RDONLY); + DataSet dataset = file.openDataSet(DATASET_NAME); /* * Get filespace for rank and dimension @@ -67,10 +67,9 @@ int main (void) /* * Get and print the dimension sizes of the file dataspace */ - hsize_t dims[2]; // dataset dimensions - rank = filespace.getSimpleExtentDims( dims ); - cout << "dataset rank = " << rank << ", dimensions " - << (unsigned long)(dims[0]) << " x " + hsize_t dims[2]; // dataset dimensions + rank = filespace.getSimpleExtentDims(dims); + cout << "dataset rank = " << rank << ", dimensions " << (unsigned long)(dims[0]) << " x " << (unsigned long)(dims[1]) << endl; /* @@ -81,13 +80,12 @@ int main (void) /* * Read dataset back and display. */ - int data_out[NX][NY]; // buffer for dataset to be read - dataset.read( data_out, PredType::NATIVE_INT, mspace1, filespace ); + int data_out[NX][NY]; // buffer for dataset to be read + dataset.read(data_out, PredType::NATIVE_INT, mspace1, filespace); cout << "\n"; cout << "Dataset: \n"; - for (j = 0; j < dims[0]; j++) - { + for (j = 0; j < dims[0]; j++) { for (i = 0; i < dims[1]; i++) cout << data_out[j][i] << " "; cout << endl; @@ -117,20 +115,20 @@ int main (void) */ hsize_t col_dims[1]; col_dims[0] = 10; - DataSpace mspace2( RANKC, col_dims ); + DataSpace mspace2(RANKC, col_dims); /* * Define the column (hyperslab) to read. */ - hsize_t offset[2] = { 0, 2 }; - hsize_t count[2] = { 10, 1 }; - int column[10]; // buffer for column to be read + hsize_t offset[2] = {0, 2}; + hsize_t count[2] = {10, 1}; + int column[10]; // buffer for column to be read /* * Define hyperslab and read. */ - filespace.selectHyperslab( H5S_SELECT_SET, count, offset ); - dataset.read( column, PredType::NATIVE_INT, mspace2, filespace ); + filespace.selectHyperslab(H5S_SELECT_SET, count, offset); + dataset.read(column, PredType::NATIVE_INT, mspace2, filespace); cout << endl; cout << "Third column: " << endl; @@ -161,20 +159,18 @@ int main (void) */ hsize_t chunk_dims[2]; int rank_chunk; - if( H5D_CHUNKED == cparms.getLayout() ) - { + if (H5D_CHUNKED == cparms.getLayout()) { /* * Get chunking information: rank and dimensions */ - rank_chunk = cparms.getChunk( 2, chunk_dims); - cout << "chunk rank " << rank_chunk << "dimensions " - << (unsigned long)(chunk_dims[0]) << " x " - << (unsigned long)(chunk_dims[1]) << endl; + rank_chunk = cparms.getChunk(2, chunk_dims); + cout << "chunk rank " << rank_chunk << "dimensions " << (unsigned long)(chunk_dims[0]) << " x " + << (unsigned long)(chunk_dims[1]) << endl; /* * Define the memory space to read a chunk. */ - DataSpace mspace3( rank_chunk, chunk_dims ); + DataSpace mspace3(rank_chunk, chunk_dims); /* * Define chunk in the file (hyperslab) to read. @@ -183,17 +179,16 @@ int main (void) offset[1] = 0; count[0] = chunk_dims[0]; count[1] = chunk_dims[1]; - filespace.selectHyperslab( H5S_SELECT_SET, count, offset ); + filespace.selectHyperslab(H5S_SELECT_SET, count, offset); /* * Read chunk back and display. */ - int chunk_out[2][5]; // buffer for chunk to be read - dataset.read( chunk_out, PredType::NATIVE_INT, mspace3, filespace ); + int chunk_out[2][5]; // buffer for chunk to be read + dataset.read(chunk_out, PredType::NATIVE_INT, mspace3, filespace); cout << endl; cout << "Chunk:" << endl; - for (j = 0; j < chunk_dims[0]; j++) - { + for (j = 0; j < chunk_dims[0]; j++) { for (i = 0; i < chunk_dims[1]; i++) cout << chunk_out[j][i] << " "; cout << endl; @@ -204,25 +199,22 @@ int main (void) * 2 0 0 0 0 */ } - } // 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; } |