[svn-r13038] Purpose: Fixed user reported bug

Description:
    In Attribute::read, H5Aread malloc's memory for the read data buffer,
    so Attribute::read shouldn't allocate the buffer, but needs to
    deallocate with HDfree.

    Fixed a typo in H5StrType.cpp, should pass PredType::C_S1 to "copy"
    instead of H5T_C_S1.

Platforms tested:
    AIX 5.1 (copper)
    Linux 2.6 (kagiso)
    SunOS 5.8 64-bit (sol)

2 files changed, 12 insertions, 6 deletions

diff --git a/c++/src/H5Attribute.cpp b/c++/src/H5Attribute.cpp
index ec12d6b..438f6e7 100644
--- a/c++/src/H5Attribute.cpp
+++ b/c++/src/H5Attribute.cpp
@@ -30,6 +30,7 @@
 #include "H5CommonFG.h"
 #include "H5DataType.h"
 #include "H5DataSpace.h"
+#include "H5private.h"
 
 #ifndef H5_NO_NAMESPACE
 namespace H5 {
@@ -128,18 +129,23 @@ void Attribute::read( const DataType& mem_type, void *buf ) const
 ///\param	strg      - IN: Buffer for read string
 ///\exception	H5::AttributeIException
 // Programmer	Binh-Minh Ribler - Apr, 2003
+// Modification
+//		2006/12/9 - H5Aread allocates memory for character string
+//			    buffer with malloc, therefore, no allocation here,
+//			    but HDfree is needed. - BMR
 //--------------------------------------------------------------------------
 void Attribute::read( const DataType& mem_type, H5std_string& strg ) const
 {
-   size_t size = mem_type.getSize();
-   char* strg_C = new char[size+1];  // temporary C-string for C API
-   herr_t ret_value = H5Aread( id, mem_type.getId(), &strg_C );
+   char* strg_C;  // temporary C-string for C API
+
+   // call C API to get the attribute string of chars
+   herr_t ret_value = H5Aread( id, mem_type.getId(), &strg_C);
    if( ret_value < 0 )
    {
       throw AttributeIException("Attribute::read", "H5Aread failed");
    }
-   strg = strg_C;
-   delete []strg_C;
+   strg = strg_C;	// get 'string' from the C char*
+   HDfree(strg_C);
 }
 
 //--------------------------------------------------------------------------
diff --git a/c++/src/H5StrType.cpp b/c++/src/H5StrType.cpp
index 849f345..bbf2bf5 100644
--- a/c++/src/H5StrType.cpp
+++ b/c++/src/H5StrType.cpp
@@ -102,7 +102,7 @@ StrType::StrType( const int dummy, const size_t& size ) : AtomType()
 {
    // use DataType::copy to make a copy of the string predefined type
    // then set its length
-   copy(H5T_C_S1);
+   copy(PredType::C_S1);
    setSize(size);
 }