From 72d896f70948d515cf047e76d1067ae5c3ccd35c Mon Sep 17 00:00:00 2001 From: Binh-Minh Ribler Date: Fri, 27 Mar 2015 23:15:43 -0500 Subject: [PATCH] [svn-r26640] Purpose: Fix bugs Description: - Changed DataType::operator= to simply copy the id of rhs instead of calling H5Tcopy because, when the operator= is invoked, a different datatype id is created and it won't have the same characteristics as rhs', specifically, if the rhs represents a named datatype, "this" would still be a transient datatype. - Added a DataType constructor that takes a PredType object, and this constructor will cause H5Tcopy to generate another datatype id, from a predefined datatype. - Fixed various mistakes in tests. Platforms tested: Linux/64 (platypus) Linux/32 2.6 (jam/gnu and jam/icc 15) SunOS 5.11 (emu development/production) --- c++/src/H5DataType.cpp | 28 +++++++++++++++++++++++++++- c++/src/H5DataType.h | 3 +++ c++/src/H5IntType.h | 2 +- c++/test/tcompound.cpp | 2 +- c++/test/tobject.cpp | 26 ++++++++++++++++++++++---- 5 files changed, 54 insertions(+), 7 deletions(-) diff --git a/c++/src/H5DataType.cpp b/c++/src/H5DataType.cpp index c4b1694df2..9040668f63 100644 --- a/c++/src/H5DataType.cpp +++ b/c++/src/H5DataType.cpp @@ -140,6 +140,22 @@ DataType::DataType(const DataType& original) : H5Object() incRefCount(); // increment number of references to this id } +//-------------------------------------------------------------------------- +// Function: DataType overloaded constructor +///\brief Creates a integer type using a predefined type +///\param pred_type - IN: Predefined datatype +///\exception H5::DataTypeIException +// Programmer Binh-Minh Ribler - 2000 +// Description +// This is so that when a predefined type is passed in, a +// copy of it is made, not just a duplicate of the HDF5 id. +//-------------------------------------------------------------------------- +DataType::DataType(const PredType& pred_type) : H5Object() +{ + // use DataType::copy to make a copy of this predefined type + copy(pred_type); +} + //-------------------------------------------------------------------------- // Function: DataType::copy ///\brief Copies an existing datatype to this datatype object @@ -203,11 +219,21 @@ void DataType::copy(const DataSet& dset) // Makes a copy of the type on the right hand side and stores // the new id in the left hand side object. // Programmer Binh-Minh Ribler - 2000 +// Modification +// Changed operator= to simply copy the id of rhs instead of +// calling H5Tcopy because, when the operator= is invoked, a +// different datatype id is created and it won't have the same +// characteristics as the original one, specifically, if the +// rhs represents a named datatype, "this" would still be a +// transient datatype. //-------------------------------------------------------------------------- DataType& DataType::operator=( const DataType& rhs ) { if (this != &rhs) - copy(rhs); + { + id = rhs.id; + incRefCount(); // increment number of references to this id + } return(*this); } diff --git a/c++/src/H5DataType.h b/c++/src/H5DataType.h index 064bfe1c1f..e2af3f3d04 100644 --- a/c++/src/H5DataType.h +++ b/c++/src/H5DataType.h @@ -36,6 +36,9 @@ class H5_DLLCPP DataType : public H5Object { // Copy constructor: makes a copy of the original object DataType( const DataType& original ); + // Creates a copy of a predefined type + DataType(const PredType& pred_type); + // Creates a datatype by way of dereference. DataType(const H5Location& loc, const void* ref, H5R_type_t ref_type = H5R_OBJECT, const PropList& plist = PropList::DEFAULT); DataType(const Attribute& attr, const void* ref, H5R_type_t ref_type = H5R_OBJECT, const PropList& plist = PropList::DEFAULT); diff --git a/c++/src/H5IntType.h b/c++/src/H5IntType.h index 95fa64246c..e28f5c28a6 100644 --- a/c++/src/H5IntType.h +++ b/c++/src/H5IntType.h @@ -24,7 +24,7 @@ namespace H5 { //! Class IntType operates on HDF5 integer datatype. class H5_DLLCPP IntType : public AtomType { public: - // Creates a integer type using a predefined type + // Creates an integer type using a predefined type IntType(const PredType& pred_type); // Gets the integer datatype of the specified dataset diff --git a/c++/test/tcompound.cpp b/c++/test/tcompound.cpp index 156f4384eb..dbf2f0c86a 100644 --- a/c++/test/tcompound.cpp +++ b/c++/test/tcompound.cpp @@ -780,7 +780,7 @@ static void test_compound_set_size() CompType dtype_tmp = file.openCompType("dtype"); // Make a copy of the data type - dtype = dtype_tmp; + dtype.copy(dtype_tmp); // Verify that the compound is not packed // packed = dtype_tmp.packed(); // not until C library provides API diff --git a/c++/test/tobject.cpp b/c++/test/tobject.cpp index c74d34a8ff..2381ec23ae 100644 --- a/c++/test/tobject.cpp +++ b/c++/test/tobject.cpp @@ -182,20 +182,38 @@ static void test_get_objname_ontypes() // Create a datatype and save it IntType inttype(PredType::STD_B8LE); + inttype.commit(file, "INT type of STD_B8LE"); + // Close the type then open it again to test getting its name + inttype.close(); + inttype = file.openIntType("INT type of STD_B8LE"); + + // Get and verify its name + H5std_string inttype_name = inttype.getObjName(); + verify_val(inttype_name, "/INT type of STD_B8LE", "DataType::getObjName", __LINE__, __FILE__); + + // Make copy of a predefined type and save it DataType dtype(PredType::STD_B8LE); dtype.commit(file, "STD_B8LE"); + // Close the data type and file + dtype.close(); + file.close(); + + // Re-open the file and the data type to test getting its name + file.openFile(FILE_OBJECTS, H5F_ACC_RDWR); + dtype = file.openDataType("STD_B8LE"); + // Get and verify its name H5std_string type_name = dtype.getObjName(); - verify_val(type_name, "/STD_B8LE", "DataSet::getObjName", __LINE__, __FILE__); + verify_val(type_name, "/STD_B8LE", "DataType::getObjName", __LINE__, __FILE__); // Test getting type's name from copied type DataType copied_type; copied_type.copy(dtype); copied_type.commit(file, "copy of STD_B8LE"); type_name = copied_type.getObjName(); - verify_val(type_name, "/copy of STD_B8LE", "DataSet::getObjName", __LINE__, __FILE__); + verify_val(type_name, "/copy of STD_B8LE", "DataType::getObjName", __LINE__, __FILE__); // Test copying an integer predefined type IntType new_int_type(PredType::NATIVE_INT); @@ -203,8 +221,8 @@ static void test_get_objname_ontypes() // Name this datatype new_int_type.commit(grp, "IntType NATIVE_INT"); ssize_t name_len = new_int_type.getObjName(type_name); // default len - verify_val(name_len, (ssize_t)HDstrlen("/typetests/IntType NATIVE_INT"), "DataSet::getObjName", __LINE__, __FILE__); - verify_val(type_name, "/typetests/IntType NATIVE_INT", "DataSet::getObjName", __LINE__, __FILE__); + verify_val(name_len, (ssize_t)HDstrlen("/typetests/IntType NATIVE_INT"), "DataType::getObjName", __LINE__, __FILE__); + verify_val(type_name, "/typetests/IntType NATIVE_INT", "DataType::getObjName", __LINE__, __FILE__); // Close everything or they can be closed when objects go out of scope dtype.close();