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Simple, robust, thin HDF5 polymorphic Fortran read/write interface. Reading or writing {real64,real32,int32,int64} from scalar to 7d is as simple as

use h5fortran

call h5write('my.h5', '/x', x)

call h5read('my.h5', '/y', y)

h5fortran is designed for "serial" HDF5 read/write.

Uses Fortran submodule for clean template structure. This easy-to-use, thin object-oriented modern Fortran library abstracts away the messy parts of HDF5 so that you can read / write various types/ranks of data with a single command. In distinction from other high-level HDF5 interfaces, h5fortran works to deduplicate code, using polymorphism wherever feasible and extensive test suite.

Polymorphic API with read / write dataset types int32, int64, real32, real64, character (string) with rank scalar (0-D) through 7-D. Variable-length datasets "H5S_UNLIMITED" can also be read.

HDF5 attributes are also supported for read/write types int32, int64, real32, real64, character (string) with rank scalar (0-D) through 7-D.

For character, datasets and attributes are supported for fixed length and variable length strings. Character padding uses spaces as this is the default for Fortran. Space-padded, null-terminated and null-padded strings are also supported on read. UTF8 characters are passed through on read and write using the Fortran default character kind.

Array slicing on read and write is supported, that is, reading or writing part of a disk HDF5 array into a variable matching the slice shape.

Mismatched datatypes are coerced as per standard Fortran rules. For example, reading a float HDF5 variable into an integer Fortran variable: 42.3 => 42

Create HDF5 soft link variables--arbitrarily many soft-linked variable names can point to an actual variable, which need not yet exist.

This package contains a Simply Fortran example project.

Version: 20261104
Homepage: https://github.com/geospace-code/h5fortran
License: SciVision BSD

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