The following datatypes are predefined in HDF5.
IEEE floating point datatypes
- 32-bit and 64-bit
- Big-endian and little-endian
H5T_IEEE_F32BE
H5T_IEEE_F32LE
H5T_IEEE_F64BE
H5T_IEEE_F64LE
Standard datatypes
- Signed integer (2's complement), unsigned integer, and bitfield
- 8-bit, 16-bit, 32-bit, and 64-bit
- Big-endian and little-endian
H5T_STD_I8BE
H5T_STD_I8LE
H5T_STD_I16BE
H5T_STD_I16LE
H5T_STD_I32BE
H5T_STD_I32LE
H5T_STD_I64BE
H5T_STD_I64LE
| H5T_STD_U8BE
H5T_STD_U8LE
H5T_STD_U16BE
H5T_STD_U16LE
H5T_STD_U32BE
H5T_STD_U32LE
H5T_STD_U64BE
H5T_STD_U64LE
| H5T_STD_B8BE
H5T_STD_B8LE
H5T_STD_B16BE
H5T_STD_B16LE
H5T_STD_B32BE
H5T_STD_B32LE
H5T_STD_B64BE
H5T_STD_B64LE
|
- Object reference or dataset region reference
H5T_STD_REF_OBJ
H5T_STD_REF_DSETREG
UNIX-specific string datatypes
- 32-bit and 64-bit
- Big-endian and little-endian
H5T_UNIX_D32BE
H5T_UNIX_D32LE
H5T_UNIX_D64BE
H5T_UNIX_D64LE
C-specific string datatype
- String datatype in C (size defined in bytes rather than in bits)
H5T_C_S1
Fortran-specific string datatype
- String datatype in Fortran (as defined for the HDF5 C library)
H5T_FORTRAN_S1
Intel-specific datatypes
- For Intel CPUs
- Little-endian
- Signed integer (2's complement), unsigned integer, bitfield, and IEEE floating point
- 8-bit, 16-bit, 32-bit, and 64-bit
H5T_INTEL_I8
H5T_INTEL_I16
H5T_INTEL_I32
H5T_INTEL_I64
H5T_INTEL_U8
H5T_INTEL_U16
H5T_INTEL_U32
H5T_INTEL_U64
| H5T_INTEL_B8
H5T_INTEL_B16
H5T_INTEL_B32
H5T_INTEL_B64
H5T_INTEL_F32
H5T_INTEL_F64
|
DEC Alpha-specific datatypes
- For DEC Alpha CPUs
- Little-endian
- Signed integer (2's complement), unsigned integer, bitfield, and IEEE floating point
- 8-bit, 16-bit, 32-bit, and 64-bit
H5T_ALPHA_I8
H5T_ALPHA_I16
H5T_ALPHA_I32
H5T_ALPHA_I64
H5T_ALPHA_U8
H5T_ALPHA_U16
H5T_ALPHA_U32
H5T_ALPHA_U64
| H5T_ALPHA_B8
H5T_ALPHA_B16
H5T_ALPHA_B32
H5T_ALPHA_B64
H5T_ALPHA_F32
H5T_ALPHA_F64
|
OpenVMS DEC Alpha-specific datatypes
- For OpenVMS on DEC Alpha CPUs
- VAX byte order
- 32- and 64-bit floating point
H5T_VAX_F32 (Corresponds to F_Floating type)
H5T_VAX_F64 (Corresponds to G_Floating type)
|
MIPS-specific datatypes
- For MIPS CPUs, commonly used in SGI system
- Big-endian
- Signed integer (2's complement), unsigned integer, bitfield, and IEEE floating point
- 8-bit, 16-bit, 32-bit, and 64-bit
H5T_MIPS_I8
H5T_MIPS_I16
H5T_MIPS_I32
H5T_MIPS_I64
H5T_MIPS_U8
H5T_MIPS_U16
H5T_MIPS_U32
H5T_MIPS_U64
| H5T_MIPS_B8
H5T_MIPS_B16
H5T_MIPS_B32
H5T_MIPS_B64
H5T_MIPS_F32
H5T_MIPS_F64
|
Predefined native datatypes
These are the datatypes detected by H5detect. Their names differ from other HDF5 datatype names as follows:
- Instead of a class name, precision, and byte order as the last component, they have a C-like datatype name.
- If the datatype begins with
U, then it is the unsigned version of the integer datatype; other integer datatypes are signed. - The datatype
LLONG corresponds to C's long_long and LDOUBLE is long_double. These datatypes might be the same as LONG and DOUBLE, respectively.
H5T_NATIVE_CHAR
H5T_NATIVE_SCHAR
H5T_NATIVE_UCHAR
H5T_NATIVE_SHORT
H5T_NATIVE_USHORT
H5T_NATIVE_INT
H5T_NATIVE_UINT
H5T_NATIVE_LONG
H5T_NATIVE_ULONG
H5T_NATIVE_LLONG
H5T_NATIVE_ULLONG
| H5T_NATIVE_FLOAT
H5T_NATIVE_DOUBLE
H5T_NATIVE_LDOUBLE
H5T_NATIVE_B8
H5T_NATIVE_B16
H5T_NATIVE_B32
H5T_NATIVE_B64
H5T_NATIVE_OPAQUE
H5T_NATIVE_HADDR
H5T_NATIVE_HSIZE
H5T_NATIVE_HSSIZE
H5T_NATIVE_HERR
H5T_NATIVE_HBOOL
|
ANSI C9x-specific native integer datatypes
- Signed integer (2's complement) and unsigned integer
- 8-bit, 16-bit, 32-bit, and 64-bit
LEAST -- storage to use least amount of space
FAST -- storage to maximize performance
H5T_NATIVE_INT8
H5T_NATIVE_UINT8
H5T_NATIVE_INT_LEAST8
H5T_NATIVE_UINT_LEAST8
H5T_NATIVE_INT_FAST8
H5T_NATIVE_UINT_FAST8
H5T_NATIVE_INT16
H5T_NATIVE_UINT16
H5T_NATIVE_INT_LEAST16
H5T_NATIVE_UINT_LEAST16
H5T_NATIVE_INT_FAST16
H5T_NATIVE_UINT_FAST16
| H5T_NATIVE_INT32
H5T_NATIVE_UINT32
H5T_NATIVE_INT_LEAST32
H5T_NATIVE_UINT_LEAST32
H5T_NATIVE_INT_FAST32
H5T_NATIVE_UINT_FAST32
H5T_NATIVE_INT64
H5T_NATIVE_UINT64
H5T_NATIVE_INT_LEAST64
H5T_NATIVE_UINT_LEAST64
H5T_NATIVE_INT_FAST64
H5T_NATIVE_UINT_FAST64
|
Fortran API datatypes
- Datatypes defined for both the Fortran90 and Fortran2003 APIs, unless otherwise noted
- Native integer, single-precision real, double-precision real, and character
H5T_NATIVE_INTEGER
H5T_NATIVE_REAL
H5T_NATIVE_DOUBLE
H5T_NATIVE_CHARACTER
- Signed integer (2's complement), unsigned integer, and IEEE floating point
- 8-bit, 16-bit, 32-bit, and 64-bit
- Big-endian and little-endian
H5T_STD_I8BE
H5T_STD_I8LE
H5T_STD_I16BE
H5T_STD_I16LE
H5T_STD_I32BE
H5T_STD_I32LE
H5T_STD_I64BE
H5T_STD_I64LE
| H5T_STD_U8BE
H5T_STD_U8LE
H5T_STD_U16BE
H5T_STD_U16LE
H5T_STD_U32BE
H5T_STD_U32LE
H5T_STD_U64BE
H5T_STD_U64LE
| H5T_IEEE_F32BE
H5T_IEEE_F32LE
H5T_IEEE_F64BE
H5T_IEEE_F64LE
|
- Object reference or dataset region reference
H5T_STD_REF_OBJ
H5T_STD_REF_DSETREG
--- Last Modified: September 13, 2018 | 03:56 PM
