mirror of https://gitee.com/openkylin/hdf5.git
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* This example illustrates how to write and read data in an existing
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* dataset. It is used in the HDF5 Tutorial.
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*/
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#include "hdf5.h"
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#define FILE "dset.h5"
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int main() {
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hid_t file_id, dataset_id; /* identifiers */
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herr_t status;
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int i, j, dset_data[4][6];
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/* Initialize the dataset. */
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for (i = 0; i < 4; i++)
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for (j = 0; j < 6; j++)
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dset_data[i][j] = i * 6 + j + 1;
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/* Open an existing file. */
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file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
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/* Open an existing dataset. */
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dataset_id = H5Dopen2(file_id, "/dset", H5P_DEFAULT);
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/* Write the dataset. */
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status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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dset_data);
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status = H5Dread(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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dset_data);
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/* Close the dataset. */
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status = H5Dclose(dataset_id);
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/* Close the file. */
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status = H5Fclose(file_id);
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}
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