• Support for Objects: The STL, 7 popular Linear Algebra Systems arbitrarily deep POD struct, arrays, raw pointers...
• True usability / flexibility trade-off
• Can start with zero HDF5 knowledge
• Zero overhead over HDF5 CAPI

h5::fd_t fd = h5::create("example.h5",H5F_ACC_TRUNC);
std::vector vec = h5::utils::get_test_data(20);
h5::write(fd, "path/to/object",  vec,
    h5::current_dims{100},  h5::max_dims{H5S_UNLIMITED},
    h5::offset{3}, h5::block{2}, h5::stride{2},
    h5::chunk{20} | h5::gzip{9} );

RAII idiom for file,dataset,property descriptors

Fundamental,POD struct or arrays of them

The object is marked with h5::write template call

type-safe arguments in any order

how is it done?

• template meta-programming for piecewise construction of functions
• file|dataset|property descriptors are binary compatible with CAPI: interop governed by conversion policy
• no virtual tables: Curiously Recurrent Templates - static polymorphism

what does it do

• LLVM7.0.0 based parser generates the AST of the TU Translation Unit
• objects marked/painted with the operators are identified,
• topological reordering of dependency graph
• elimination
• code generation: HDF5 Data Description Language
• include the generated header file into your TU translation unit
• second stage: invoke your favourite compiler: intel, gcc, cray, ibm, pg, ...

• Support for Objects: The STL, 7 popular Linear Algebra Systems arbitrarily deep POD struct, arrays, raw pointers...
• True usability / flexibility trade-off
• Can start with zero HDF5 knowledge
• Zero overhead over HDF5 CAPI