Fix display of long double in tools (#469)

* OESS-98 convert plugin option to FetchContent, add tests

* Fixes for pkcfg files because of plugin option

* OESS-98 fix tools test for plugins

* Keep doxygen comments under 100 chars long - format hint

* Whitespace

* HDFFV-11144 - Reclassify CMake messages

* HDFFV-11099/11100 added help text

* Reworked switch statement to compare string instead

* Fix typo

* Update CDash mode

* Correct name of threadsafe

* Correct option name

* Undo accidental commit

* Note LLVM 10 to 11 format default changes

* Update format plugin

* Undo clang-format version 11 changes

* One more correction

* Update supported platforms

* Revert whitespace changes

* Correct whitespace

* Changes from PR#3

* HDFFV-11213 added option to control gcc10 warnings diagnostics

* HDFFV-11212 Use the new references correctly in JNI utility and tests

* format source

* Fix typo

* Add new test file

* HDFFV-11212 - update test and remove unused arg

* Minor non-space formatting changes

* Use H5I_INVALID_ID instead of "-1"

* source formatting

* add missing testfile, update jni function

* Undo commit of debug code

* remove mislocated file

* Fix h5repack test for handling of fapls and id close

* Update h5diff test files usage text

* HDFFV-11212 add new ref tests for JNI export dataset

* src format update

* Remove blank line typo

* src format typo

* long double requires %Lg

* Another long double foramt specifer S.B. %Lg

* issue with t128bit test

* Windows issue with h5dump and type.

* Fix review issues

* refactor function nesting and fix error checks

* format fixes

* Remove untested functions and javadoc quiet comments

* Restore TRY block.

* Change string append errors to memory exception

* revert to H5_JNI_FATAL_ERROR - support functions need work

* Add assertion error for h5util functions

* remove duplicate function

* format fix

* Revert HD function error handling

* Update copyright comments

* GH #386 java folder copyright corrections

* Whitespace

* GH #359 implement and fix tools 1.6 API usage

* remove excessive comments

* Flip inits to correct ifdef section

* rework ifdef to be simpler

* format issue

* Reformat ifdef inits

* remove static attribute

* format compliance

* Update names

* Revert because logic relies on float not being int

* Changes noticed from creating merge of #412

* Double underscore change

* Correct compiler version variable used

* Remove header guard underscores

* Whitespace cleanup

* Split format source and commit changes on repo push

* remove pre-split setting

* Change windows TS to use older VS.

* correct window os name

* HDFFV-11212 JNI export util and Javadoc

* Suggested review changes

* Another change found

* Committing clang-format changes

* HDFFV-11113 long double in tools

* HDFFV-11113 add note

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

4 files changed, 63 insertions, 0 deletions

diff --git a/tools/testfiles/tldouble.wddl b/tools/testfiles/tldouble.wddl
new file mode 100644
index 0000000..4793b4d
--- /dev/null
+++ b/tools/testfiles/tldouble.wddl
@@ -0,0 +1,11 @@
+HDF5 "tldouble.h5" {
+GROUP "/" {
+   DATASET "dset" {
+      DATATYPE  128-bit little-endian floating-point
+      DATASPACE  SIMPLE { ( 3 ) / ( 3 ) }
+      DATA {
+      (0): 1, 2, 3
+      }
+   }
+}
+}
diff --git a/tools/testfiles/tldouble_scalar.ddl b/tools/testfiles/tldouble_scalar.ddl
new file mode 100755
index 0000000..45f0b45
--- /dev/null
+++ b/tools/testfiles/tldouble_scalar.ddl
@@ -0,0 +1,26 @@
+HDF5 "tldouble_scalar.h5" {
+GROUP "/" {
+   DATASET "dset" {
+      DATATYPE  H5T_ARRAY { [6] H5T_NATIVE_LDOUBLE }
+      DATASPACE  SCALAR
+      STORAGE_LAYOUT {
+         CONTIGUOUS
+         SIZE 96
+         OFFSET 2048
+      }
+      FILTERS {
+         NONE
+      }
+      FILLVALUE {
+         FILL_TIME H5D_FILL_TIME_IFSET
+         VALUE  H5D_FILL_VALUE_DEFAULT
+      }
+      ALLOCATION_TIME {
+         H5D_ALLOC_TIME_LATE
+      }
+      DATA {
+      (0): [ 0, 1, 2, 3, 4, 5 ]
+      }
+   }
+}
+}
diff --git a/tools/testfiles/tldouble_scalar.h5 b/tools/testfiles/tldouble_scalar.h5
new file mode 100644
index 0000000..0344ea0
--- /dev/null
+++ b/tools/testfiles/tldouble_scalar.h5
diff --git a/tools/testfiles/tldouble_scalar.wddl b/tools/testfiles/tldouble_scalar.wddl
new file mode 100755
index 0000000..0c17c31
--- /dev/null
+++ b/tools/testfiles/tldouble_scalar.wddl
@@ -0,0 +1,26 @@
+HDF5 "tldouble_scalar.h5" {
+GROUP "/" {
+   DATASET "dset" {
+      DATATYPE  H5T_ARRAY { [6] 128-bit little-endian floating-point }
+      DATASPACE  SCALAR
+      STORAGE_LAYOUT {
+         CONTIGUOUS
+         SIZE 96
+         OFFSET 2048
+      }
+      FILTERS {
+         NONE
+      }
+      FILLVALUE {
+         FILL_TIME H5D_FILL_TIME_IFSET
+         VALUE  H5D_FILL_VALUE_DEFAULT
+      }
+      ALLOCATION_TIME {
+         H5D_ALLOC_TIME_LATE
+      }
+      DATA {
+      (0): [ 0, 1, 2, 3, 4, 5 ]
+      }
+   }
+}
+}