Squashed commit of the following:

commit c7ee3ba
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 23:54:33 2018 -0400

    doc

commit c083773
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 23:33:50 2018 -0400

    real64 read

commit 595b031
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 23:29:22 2018 -0400

    stub real32 read

commit 3de9d3d
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 23:24:25 2018 -0400

    write real32/64

commit 76504ea
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 23:04:52 2018 -0400

    per variable chunk_size, up to 6-d array (more possible)

commit d31e4d9
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 22:47:57 2018 -0400

    cleanup attribute write

commit da47ec3
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 22:26:42 2018 -0400

    dedupe

commit 6817f9a
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 22:24:42 2018 -0400

    functionalize wrapup

commit 46b8c98
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 22:19:12 2018 -0400

    use self% properties

commit 25e5b4a
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 21:54:24 2018 -0400

    function deflate

commit a1ff185
Author: Michael Hirsch, Ph.D <[email protected]>
Date:   Mon Apr 9 21:51:25 2018 -0400

    function rename

Author: scivision

README.md

@@ -8,9 +8,7 @@ Abstracts away the messy parts of HDF5 so that you can read/write various types/
 Polymorphic API with read/write integer / real32/64:
 
 * scalar
-* 1-D
-* 2-D
-* 3-D
+* 1-D .. 6-D
 
 as well as character (string) variables and attributes.
 If you'd like higher-rank arrays, let us know via GitHub Issue.
@@ -43,6 +41,8 @@ make
 make test
 ```
 
+The library `libh5oo` is built, link it into your program as usual.
+
 ## Usage
 
 All examples assume:
@@ -84,7 +84,7 @@ call h5f%finalize()
 
 real :: val2(1000,1000,3) = 0.
 
-call h5f%initialize('test.h5',status='old',action='rw', comp_lvl=1)
+call h5f%initialize('test.h5', comp_lvl=1)
 
 call h5f%add('/value2', val2)
 

src/CMakeLists.txt

@@ -4,13 +4,11 @@ project(hdf5iface Fortran)
 
 if(${CMAKE_Fortran_COMPILER_ID} STREQUAL Intel)
     list(APPEND FFLAGS -check all -traceback -warn -debug extended)
-    set(F64 -r8)
 elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) 
     if(${CMAKE_Fortran_COMPILER_VERSION} VERSION_LESS 5.4.1)
       message(ERROR " gfortran >= 5.4.1 required, you have " ${CMAKE_Fortran_COMPILER_VERSION})
     endif()
     list(APPEND FFLAGS -std=f2008ts -march=native -Wall -Wextra -Wpedantic -Werror=array-bounds -fbacktrace -fcheck=all)
-    set(F64 -fdefault-real-8)
 endif()
 
 add_compile_options(-O3 -g ${FFLAGS})
@@ -21,29 +19,15 @@ find_package(HDF5 REQUIRED COMPONENTS Fortran Fortran_HL)
 include_directories(${HDF5_INCLUDE_DIRS} ${HDF5_Fortran_INCLUDE_DIRS})
 
 
-add_library(hdf5iface_32 hdf5_interface.f90)
-target_link_libraries(hdf5iface_32
-    ${HDF5_Fortran_LIBRARIES} ${HDF5_Fortran_HL_LIBRARIES})
-set_target_properties(hdf5iface_32 PROPERTIES Fortran_MODULE_DIRECTORY mod.real32)
+add_library(hdf5oo hdf5_interface.f90)
+target_link_libraries(hdf5oo ${HDF5_Fortran_LIBRARIES} ${HDF5_Fortran_HL_LIBRARIES})
 
-add_library(hdf5iface_64 hdf5_interface.f90)
-target_compile_options(hdf5iface_64 PUBLIC ${F64})
-target_link_libraries(hdf5iface_64
-    ${HDF5_Fortran_LIBRARIES} ${HDF5_Fortran_HL_LIBRARIES})
-set_target_properties(hdf5iface_64 PROPERTIES Fortran_MODULE_DIRECTORY mod.real64)
+# ========== test
 
+add_executable(testh5 test_hdf5_ifc.f90)
+target_link_libraries(testh5 hdf5oo)
+target_compile_options(testh5 PRIVATE -Wno-compare-reals)
 
-add_executable(test_hdf5_ifc_32 test_hdf5_ifc.f90)
-target_link_libraries(test_hdf5_ifc_32 hdf5iface_32)
-target_compile_options(test_hdf5_ifc_32 PRIVATE -Wno-compare-reals)
-set_target_properties(test_hdf5_ifc_32 PROPERTIES Fortran_MODULE_DIRECTORY mod.real32)
-
-add_executable(test_hdf5_ifc_64 test_hdf5_ifc.f90)
-target_link_libraries(test_hdf5_ifc_64 hdf5iface_64)
-target_compile_options(test_hdf5_ifc_64 PRIVATE -Wno-compare-reals)
-set_target_properties(test_hdf5_ifc_64 PROPERTIES Fortran_MODULE_DIRECTORY mod.real64)
 #---------------------------
 enable_testing()
-add_test(NAME h5iface_32 COMMAND test_hdf5_ifc_32)
-
-add_test(NAME h5iface_64 COMMAND test_hdf5_ifc_64)
+add_test(NAME h5oo COMMAND testh5)