mirror of
https://github.com/triqs/dft_tools
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21 lines
738 B
C++
21 lines
738 B
C++
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#include <triqs/arrays/array.hpp>
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#include <triqs/arrays/h5/simple_read_write.hpp>
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namespace tqa=triqs::arrays; namespace h5=tqa::h5;
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int main() {
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tqa::array<long,2> A(2,2),B; A() = 3; // declare some array and init it
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h5::H5File file("ess.h5",H5F_ACC_TRUNC); // open the file ess.h5
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h5::write(file,"A",A); // write A in the file as 'A'
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file.createGroup("G"); // create a subgroup G (Cf hdf5 doc, C++ API)
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h5::write(file,"G/A",A); // write A as G/A
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h5::Group G = file.openGroup("G"); // another way to do it : open the group and write G/A2
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h5::write(G, "A2",A);
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h5::read (file, "A",B); // Read from the file. NB : B is automatically resized
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}
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