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libISO

I do use Ubuntu 18.10. I was only successful with cmake and 'make test' when I changed
/usr/lib/x86_64-linux-gnu/cmake/opencoarrays/OpenCoarraysTargets-none.cmake
at line 42 and 46 from 'libcISO_Fortran_binding.a' to 'libISO_Fortran_binding.so.2.1.0'
Thank you for the stuff!

add fortran-tutorial tag

Could you add the tag fortran-tutorial to your project? If all relevant repos add this tag it will make such material easier to find on GitHub. Currently topics such javascript-tutorial and python-tutorial have many entries.

cmake errors

ian@ian-Aspire-One-753:$ cd fortran2018*
ian@ian-Aspire-One-753:/fortran2018examples$ ls
abi_check CMakeCache.txt _deps namelist real
array CMakeFiles fortran2018-examples openmp standard
benchmarks compile git overloading submodule
block contiguous io pointer system
character debug maximum random
ian@ian-Aspire-One-753:~/fortran2018examples$ cmake fortran2018-examples
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
/usr/local/share/cmake-3.16
CMake Error: Error executing cmake::LoadCache(). Aborting.

ian@ian-Aspire-One-753:~/fortran2018examples$ sudo cmake fortran2018-examples
fatal: not a git repository (or any of the parent directories): .git
CMake Error at git/CMakeLists.txt:14 (string):
string sub-command SUBSTRING requires four arguments.

fatal: not a git repository (or any of the parent directories): .git
CMake Error at git/CMakeLists.txt:18 (string):
string sub-command SUBSTRING requires four arguments.

fatal: not a git repository (or any of the parent directories): .git
-- Fortran2018Examples git revision: git_branch: git_porcelain: .true.
-- CMake at least through 3.20.1 and Make have a bug with this Fortran Syntax. CMake + Ninja works OK.

  • Openmp, tests using OpenMP

-- Configuring incomplete, errors occurred!
See also "/home/ian/fortran2018examples/CMakeFiles/CMakeOutput.log".
See also "/home/ian/fortran2018examples/CMakeFiles/CMakeError.log".

fortran program svd_example ! Declare variables integer, parameter :: m = 4, n = 3, lda = 4, ldu = 4, ldvt = 3 integer :: i, j, info real(kind=8) :: a(lda,n), s(n), u(ldu,m), vt(ldvt,n), superb(min(m,n)-1) ! Initialize matrix A with some random values do j=1,n do i=1,m a(i,j) = dble((i-1) + (j-1)*m) end do end do ! Compute the SVD of matrix A using LAPACK routine DGESVD call dgesvd('A', 'A', m, n, a, lda, s, u, ldu, vt, ldvt, superb, info) ! Print the results: matrices U and Vt and vector S. write(*,'(a)') 'Matrix U:' do i=1,m write(*,'(4f8.2)') (u(i,j),j=1,min(m,n)) end do write(*,*) write(*,'(a)') 'Vector S:' write(*,'(3f8.2)') (s(j),j=1,min(m,n)) write(*,*) write(*,'(a)') 'Matrix Vt:' do i=1,min(m,n) write(*,'(3f8.2,a,f8.2)') (vt(i,j),' ',char(10),superb(i)) end do end program svd_example

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