diff options
Diffstat (limited to 'examples/h5_attribute.c')
| -rw-r--r-- | examples/h5_attribute.c | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/examples/h5_attribute.c b/examples/h5_attribute.c index 76609ec..6857236 100644 --- a/examples/h5_attribute.c +++ b/examples/h5_attribute.c @@ -12,52 +12,52 @@ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ -/* +/* * This program illustrates the usage of the H5A Interface functions. * It creates and writes a dataset, and then creates and writes array, - * scalar, and string attributes of the dataset. + * scalar, and string attributes of the dataset. * Program reopens the file, attaches to the scalar attribute using * attribute name and reads and displays its value. Then index of the * third attribute is used to read and display attribute values. * The H5Aiterate function is used to iterate through the dataset attributes, - * and display their names. The function is also reads and displays the values - * of the array attribute. - */ - + * and display their names. The function is also reads and displays the values + * of the array attribute. + */ + #include <stdlib.h> #include "hdf5.h" #define H5FILE_NAME "Attributes.h5" -#define RANK 1 /* Rank and size of the dataset */ +#define RANK 1 /* Rank and size of the dataset */ #define SIZE 7 #define ARANK 2 /* Rank and dimension sizes of the first dataset attribute */ #define ADIM1 2 -#define ADIM2 3 +#define ADIM2 3 #define ANAME "Float attribute" /* Name of the array attribute */ #define ANAMES "Character attribute" /* Name of the string attribute */ -herr_t attr_info(hid_t loc_id, const char *name, void *opdata); +herr_t attr_info(hid_t loc_id, const char *name, void *opdata); /* Operator function */ -int +int main (void) { hid_t file, dataset; /* File and dataset identifiers */ - + hid_t fid; /* Dataspace identifier */ hid_t attr1, attr2, attr3; /* Attribute identifiers */ hid_t attr; - hid_t aid1, aid2, aid3; /* Attribute dataspace identifiers */ + hid_t aid1, aid2, aid3; /* Attribute dataspace identifiers */ hid_t atype; /* Attribute type */ hsize_t fdim[] = {SIZE}; hsize_t adim[] = {ADIM1, ADIM2}; /* Dimensions of the first attribute */ - - float matrix[ADIM1][ADIM2]; /* Attribute data */ + + float matrix[ADIM1][ADIM2]; /* Attribute data */ herr_t ret; /* Return value */ unsigned i,j; /* Counters */ @@ -69,10 +69,10 @@ main (void) * Data initialization. */ int vector[] = {1, 2, 3, 4, 5, 6, 7}; /* Dataset data */ - int point = 1; /* Value of the scalar attribute */ + int point = 1; /* Value of the scalar attribute */ char string[] = "ABCD"; /* Value of the string attribute */ - + for (i=0; i < ADIM1; i++) { /* Values of the array attribute */ for (j=0; j < ADIM2; j++) matrix[i][j] = -1.; @@ -83,7 +83,7 @@ main (void) */ file = H5Fcreate(H5FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - /* + /* * Create the dataspace for the dataset in the file. */ fid = H5Screate(H5S_SIMPLE); @@ -100,7 +100,7 @@ main (void) ret = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL , H5S_ALL, H5P_DEFAULT, vector); /* - * Create dataspace for the first attribute. + * Create dataspace for the first attribute. */ aid1 = H5Screate(H5S_SIMPLE); ret = H5Sset_extent_simple(aid1, ARANK, adim, NULL); @@ -125,7 +125,7 @@ main (void) /* * Write scalar attribute. */ - ret = H5Awrite(attr2, H5T_NATIVE_INT, &point); + ret = H5Awrite(attr2, H5T_NATIVE_INT, &point); /* * Create string attribute. @@ -139,23 +139,23 @@ main (void) /* * Write string attribute. */ - ret = H5Awrite(attr3, atype, string); + ret = H5Awrite(attr3, atype, string); /* * Close attribute and file dataspaces. */ - ret = H5Sclose(aid1); - ret = H5Sclose(aid2); - ret = H5Sclose(aid3); - ret = H5Sclose(fid); + ret = H5Sclose(aid1); + ret = H5Sclose(aid2); + ret = H5Sclose(aid3); + ret = H5Sclose(fid); /* * Close the attributes. - */ + */ ret = H5Aclose(attr1); ret = H5Aclose(attr2); ret = H5Aclose(attr3); - + /* * Close the dataset. */ @@ -177,12 +177,12 @@ main (void) dataset = H5Dopen(file,"Dataset"); /* - * Attach to the scalar attribute using attribute name, then read and + * Attach to the scalar attribute using attribute name, then read and * display its value. */ attr = H5Aopen_name(dataset,"Integer attribute"); ret = H5Aread(attr, H5T_NATIVE_INT, &point_out); - printf("The value of the attribute \"Integer attribute\" is %d \n", point_out); + printf("The value of the attribute \"Integer attribute\" is %d \n", point_out); ret = H5Aclose(attr); /* @@ -197,7 +197,7 @@ main (void) ret = H5Tclose(atype); /* - * Get attribute info using iteration function. + * Get attribute info using iteration function. */ idx = H5Aiterate(dataset, NULL, attr_info, NULL); @@ -207,21 +207,21 @@ main (void) H5Dclose(dataset); H5Fclose(file); - return 0; + return 0; } /* * Operator function. */ -herr_t +herr_t attr_info(hid_t loc_id, const char *name, void *opdata) { hid_t attr, atype, aspace; /* Attribute, datatype and dataspace identifiers */ int rank; - hsize_t sdim[64]; + hsize_t sdim[64]; herr_t ret; int i; - size_t npoints; /* Number of elements in the array attribute. */ + size_t npoints; /* Number of elements in the array attribute. */ float *float_array; /* Pointer to the array attribute. */ /* avoid warnings */ @@ -229,7 +229,7 @@ attr_info(hid_t loc_id, const char *name, void *opdata) /* * Open the attribute using its name. - */ + */ attr = H5Aopen_name(loc_id, name); /* @@ -239,7 +239,7 @@ attr_info(hid_t loc_id, const char *name, void *opdata) printf("Name : "); puts(name); - /* + /* * Get attribute datatype, dataspace, rank, and dimensions. */ atype = H5Aget_type(attr); @@ -252,7 +252,7 @@ attr_info(hid_t loc_id, const char *name, void *opdata) */ if(rank > 0) { - printf("Rank : %d \n", rank); + printf("Rank : %d \n", rank); printf("Dimension sizes : "); for (i=0; i< rank; i++) printf("%d ", (int)sdim[i]); printf("\n"); @@ -263,12 +263,12 @@ attr_info(hid_t loc_id, const char *name, void *opdata) */ if (H5T_FLOAT == H5Tget_class(atype)) { - printf("Type : FLOAT \n"); + printf("Type : FLOAT \n"); npoints = H5Sget_simple_extent_npoints(aspace); - float_array = (float *)malloc(sizeof(float)*(int)npoints); + float_array = (float *)malloc(sizeof(float)*(int)npoints); ret = H5Aread(attr, atype, float_array); printf("Values : "); - for( i = 0; i < (int)npoints; i++) printf("%f ", float_array[i]); + for( i = 0; i < (int)npoints; i++) printf("%f ", float_array[i]); printf("\n"); free(float_array); } |