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https://github.com/HDFGroup/hdf5.git
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118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/*
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* This example shows how to create groups within the file and
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* datasets within the file and groups.
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*/
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#include "hdf5.h"
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#define FILE "DIR.h5"
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#define RANK 2
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main()
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{
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hid_t file, dir;
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hid_t dataset, dataspace;
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herr_t status;
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size_t dims[2];
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size_t size[1];
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/*
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* Create a file.
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*/
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file = H5Fcreate(FILE, H5ACC_OVERWRITE, H5C_DEFAULT, H5C_DEFAULT);
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/*
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* Create two groups in a file.
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*/
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dir = H5Gcreate(file, "/IntData", 0);
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status = H5Gclose(dir);
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dir = H5Gcreate(file,"/FloatData", 0);
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status = H5Gclose(dir);
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/*
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* Create dataspace for the character string
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*/
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size[0] = 80;
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dataspace = H5Pcreate_simple(1, size, NULL);
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/*
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* Create dataset "String" in the root group.
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*/
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dataset = H5Dcreate(file, "String", H5T_NATIVE_CHAR, dataspace, H5C_DEFAULT);
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H5Dclose(dataset);
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/*
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* Create dataset "String" in the /IntData group.
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*/
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dataset = H5Dcreate(file, "/IntData/String", H5T_NATIVE_CHAR, dataspace,
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H5C_DEFAULT);
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H5Dclose(dataset);
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/*
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* Create dataset "String" in the /FloatData group.
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*/
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dataset = H5Dcreate(file, "/FloatData/String", H5T_NATIVE_CHAR, dataspace,
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H5C_DEFAULT);
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H5Pclose(dataspace);
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H5Dclose(dataset);
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/*
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* Create IntArray dataset in the /IntData group by specifying full path.
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*/
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dims[0] = 2;
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dims[1] = 3;
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dataspace = H5Pcreate_simple(RANK, dims, NULL);
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dataset = H5Dcreate(file, "/IntData/IntArray", H5T_NATIVE_INT, dataspace,
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H5C_DEFAULT);
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H5Pclose(dataspace);
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H5Dclose(dataset);
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/*
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* Set current group to /IntData and attach to the dataset String.
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*/
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status = H5Gset (file, "/IntData");
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dataset = H5Dopen(file, "String");
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if (dataset > 0) printf("String dataset in /IntData group is found\n");
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H5Dclose(dataset);
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/*
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* Set current group to /FloatData.
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*/
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status = H5Gset (file, "/FloatData");
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/*
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* Create two datasets FlatArray and DoubleArray.
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*/
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dims[0] = 5;
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dims[1] = 10;
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dataspace = H5Pcreate_simple(RANK, dims, NULL);
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dataset = H5Dcreate(file, "FloatArray", H5T_NATIVE_FLOAT, dataspace, H5C_DEFAULT);
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H5Pclose(dataspace);
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H5Dclose(dataset);
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dims[0] = 4;
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dims[1] = 6;
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dataspace = H5Pcreate_simple(RANK, dims, NULL);
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dataset = H5Dcreate(file, "DoubleArray", H5T_NATIVE_DOUBLE, dataspace,
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H5C_DEFAULT);
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H5Pclose(dataspace);
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H5Dclose(dataset);
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/*
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* Attach to /FloatData/String dataset.
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*/
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dataset = H5Dopen(file, "/FloatData/String");
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if (dataset > 0) printf("/FloatData/String dataset is found\n");
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H5Dclose(dataset);
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H5Fclose(file);
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}
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