1 files changed, 80 insertions, 0 deletions
diff --git a/src/H5Tpublic.h b/src/H5Tpublic.h
index b34138b..b5dc566 100644
--- a/src/H5Tpublic.h
+++ b/src/H5Tpublic.h
@@ -11,6 +11,86 @@
  * help@hdfgroup.org.                                                        *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
+/**\defgroup H5T H5T
+ *
+ * Use the functions in this module to manage HDF5 datatypes.
+ *
+ * HDF5 datatypes describe the element type of HDF5 datasets and attributes.
+ * There's a large set of predefined datatypes, but users may find it useful
+ * to define new datatypes through a process called \Emph{derivation}.
+ *
+ * The element type is automatically persisted as part of the HDF5 metadata of
+ * attributes and datasets. Additionally, datatype definitions can be persisted
+ * to HDF5 files and linked to groups as HDF5 datatype objects or so-called
+ * \Emph{committed datatypes}.
+ *
+ * \defgroup ARRAY Array Datatypes
+ * \ingroup H5T
+ * \defgroup ATOM Atomic Datatypes
+ * \ingroup H5T
+ * \defgroup COMPOUND Compound Datatypes
+ * \ingroup H5T
+ * \defgroup CONV Conversion Function
+ * \ingroup H5T
+ * \defgroup ENUM Enumeration Datatypes
+ * \ingroup H5T
+ * \defgroup OPAQUE Opaque Datatypes
+ * \ingroup H5T
+ * \defgroup VLEN Variable-length Sequence Datatypes
+ * \ingroup H5T
+ *
+ * \defgroup PDT Predefined Datatypes
+ * \ingroup H5T
+ * \details What is a predefined HDF5 datatype?
+ * \todo Fill in the blanks!
+ *
+ * \defgroup PDTCPU By CPU
+ * \ingroup PDT
+ * \details CPU-specific datatypes
+ * \defgroup PDTALPHA DEC Alpha
+ * \ingroup PDTCPU
+ * \defgroup PDTX86 AMD & INTEL
+ * \ingroup PDTCPU
+ * \defgroup PDTMIPS SGI MIPS
+ * \ingroup PDTCPU
+ *
+ * \defgroup PDTIEEE IEEE
+ * \ingroup PDT
+ * \details The IEEE floating point types in big- and little-endian byte orders.
+ *
+ * \defgroup PDTSTD Standard Datatypes
+ * \ingroup PDT
+ * \details These are "standard" types. For instance, signed (2's complement)
+ *          and unsigned integers of various sizes in big- and little-endian
+ *          byte orders.
+ *
+ * \defgroup PDTUNIX UNIX-specific Datatypes
+ * \ingroup PDT
+ * \details Types which are particular to Unix.
+ * \todo Fill in the blanks!
+ *
+ * \defgroup PDTNAT Native Datatypes
+ * \ingroup PDT
+ * \details These are the datatypes detected during library \Emph{compilation}
+ *          by \c H5detect(). Their names differ from other HDF5 datatype names
+ *          as follows:
+ *          \li Instead of a class name, precision and byte order as the last
+ *              component, they have a C-like type name.
+ *          \li If the type begins with \c U then it is the unsigned version of
+ *              the integer type; other integer types are signed.
+ *          \li The datatype \c LLONG corresponds C's \Code{long long} and
+ *              \c LDOUBLE is \Code{long double}. These types might be the same
+ *              as \c LONG and \c DOUBLE, respectively.
+ * \defgroup PDTC9x C9x Integer Datatypes
+ * \ingroup PDTNAT
+ * \details C9x integer types
+ * \todo Fill in the blanks!
+ *
+ * \defgroup PDTS Strings
+ * \ingroup PDT
+ *
+ */
+
 /*
  * This file contains public declarations for the H5T module.
  */