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[svn-r7104] Purpose:

Browse Source 
Bug fix

Description:
    Missing returning error for failures occur in C++ examples.

Solution:
    Added "return -1;" when an exception is caught.
    Also, turned off automatic error printing so that the C++ API
        will catch and handle the failures.

Platforms:
    SunOS 5.7 (arabica)
    Linux 2.4 (eirene)
    IRIX 6.5.11 (modi4)
This commit is contained in:
Binh-Minh Ribler
2003-06-25 12:25:11 -05:00
parent c9f162a58c
commit fa77b6691e
7 changed files with 240 additions and 134 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
c++/examples/readdata.cpp
View File

@@ -42,9 +42,9 @@ const int RANK_OUT = 3;
int main (void)
{
//
// Output buffer initialization.
//
/*
* Output buffer initialization.
*/
int i, j, k;
int data_out[NX][NY][NZ ]; /* output buffer */
for (j = 0; j < NX; j++)
@@ -56,52 +56,78 @@ int main (void)
}
}
// Try block to detect exceptions raised by any of the calls inside it
/*
* Try block to detect exceptions raised by any of the calls inside it
*/
try
{
//
// Open the specified file and the specified dataset in the file.
//
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Open the specified file and the specified dataset in the file.
*/
H5File file( FILE_NAME, H5F_ACC_RDONLY );
DataSet dataset = file.openDataSet( DATASET_NAME );
// Get the class of the datatype that is used by the dataset.
/*
* Get the class of the datatype that is used by the dataset.
*/
H5T_class_t type_class = dataset.getTypeClass();
// Get class of datatype and print message if it's an integer.
/*
* Get class of datatype and print message if it's an integer.
*/
if( type_class == H5T_INTEGER )
{
cout << "Data set has INTEGER type" << endl;
// Get the integer datatype
/*
* Get the integer datatype
*/
IntType intype = dataset.getIntType();
// Get order of datatype and print message if it's a little endian.
/*
* Get order of datatype and print message if it's a little endian.
*/
string order_string;
H5T_order_t order = intype.getOrder( order_string );
cout << order_string << endl;
// Get size of the data element stored in file and print it.
/*
* Get size of the data element stored in file and print it.
*/
size_t size = intype.getSize();
cout << "Data size is " << size << endl;
}
// Get dataspace of the dataset.
/*
* Get dataspace of the dataset.
*/
DataSpace dataspace = dataset.getSpace();
// Get the number of dimensions in the dataspace.
/*
* Get the number of dimensions in the dataspace.
*/
int rank = dataspace.getSimpleExtentNdims();
// Get the dimension size of each dimension in the dataspace and
// display them.
/*
* Get the dimension size of each dimension in the dataspace and
* display them.
*/
hsize_t dims_out[2];
int ndims = dataspace.getSimpleExtentDims( dims_out, NULL);
cout << "rank " << rank << ", dimensions " <<
(unsigned long)(dims_out[0]) << " x " <<
(unsigned long)(dims_out[1]) << endl;
// Define hyperslab in the dataset; implicitly giving strike and
// block NULL.
/*
* Define hyperslab in the dataset; implicitly giving strike and
* block NULL.
*/
hssize_t offset[2]; // hyperslab offset in the file
hsize_t count[2]; // size of the hyperslab in the file
offset[0] = 1;
@@ -110,14 +136,18 @@ int main (void)
count[1] = NY_SUB;
dataspace.selectHyperslab( H5S_SELECT_SET, count, offset );
// Define the memory dataspace.
/*
* Define the memory dataspace.
*/
hsize_t dimsm[3]; /* memory space dimensions */
dimsm[0] = NX;
dimsm[1] = NY;
dimsm[2] = NZ ;
DataSpace memspace( RANK_OUT, dimsm );
// Define memory hyperslab.
/*
* Define memory hyperslab.
*/
hssize_t offset_out[3]; // hyperslab offset in memory
hsize_t count_out[3]; // size of the hyperslab in memory
offset_out[0] = 3;
@@ -128,8 +158,10 @@ int main (void)
count_out[2] = 1;
memspace.selectHyperslab( H5S_SELECT_SET, count_out, offset_out );
// Read data from hyperslab in the file into the hyperslab in
// memory and display the data.
/*
* Read data from hyperslab in the file into the hyperslab in
* memory and display the data.
*/
dataset.read( data_out, PredType::NATIVE_INT, memspace, dataspace );
for (j = 0; j < NX; j++)
@@ -153,24 +185,28 @@ int main (void)
catch( FileIException error )
{
error.printError();
return -1;
}
// catch failure caused by the DataSet operations
catch( DataSetIException error )
{
error.printError();
return -1;
}
// catch failure caused by the DataSpace operations
catch( DataSpaceIException error )
{
error.printError();
return -1;
}
// catch failure caused by the DataSpace operations
catch( DataTypeIException error )
{
error.printError();
return -1;
}
return 0; // successfully terminated