Add _Float16 h5dump XML test

Fix a few warnings in dt_arith.c test when _Float16 isn't available

6 files changed, 539 insertions, 173 deletions

diff --git a/src/H5Tconv.c b/src/H5Tconv.c
index 3114896..168370c 100644
--- a/src/H5Tconv.c
+++ b/src/H5Tconv.c
@@ -722,9 +722,9 @@
 #define H5T_CONV_Xf_CORE(STYPE, DTYPE, S, D, ST, DT, D_MIN, D_MAX)                                           \
     {                                                                                                        \
         if (*(S) > (ST)(D_MAX) || (sprec < dprec && *(S) == (ST)(D_MAX))) {                                  \
-            H5T_conv_ret_t except_ret =                                                                      \
-                (conv_ctx->u.conv.cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, conv_ctx->u.conv.src_type_id,    \
-                        conv_ctx->u.conv.dst_type_id, S, D, conv_ctx->u.conv.cb_struct.user_data);           \
+            H5T_conv_ret_t except_ret = (conv_ctx->u.conv.cb_struct.func)(                                   \
+                H5T_CONV_EXCEPT_RANGE_HI, conv_ctx->u.conv.src_type_id, conv_ctx->u.conv.dst_type_id, S, D,  \
+                conv_ctx->u.conv.cb_struct.user_data);                                                       \
             if (except_ret == H5T_CONV_UNHANDLED)                                                            \
                 /* Let compiler convert if case is ignored by user handler*/                                 \
                 *(D) = H5_GLUE3(H5T_NATIVE_, DTYPE, _POS_INF_g);                                             \
@@ -733,9 +733,9 @@
             /* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */                            \
         }                                                                                                    \
         else if (*(S) < (ST)(D_MIN)) {                                                                       \
-            H5T_conv_ret_t except_ret =                                                                      \
-                (conv_ctx->u.conv.cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, conv_ctx->u.conv.src_type_id,   \
-                        conv_ctx->u.conv.dst_type_id, S, D, conv_ctx->u.conv.cb_struct.user_data);           \
+            H5T_conv_ret_t except_ret = (conv_ctx->u.conv.cb_struct.func)(                                   \
+                H5T_CONV_EXCEPT_RANGE_LOW, conv_ctx->u.conv.src_type_id, conv_ctx->u.conv.dst_type_id, S, D, \
+                conv_ctx->u.conv.cb_struct.user_data);                                                       \
             if (except_ret == H5T_CONV_UNHANDLED)                                                            \
                 /* Let compiler convert if case is ignored by user handler*/                                 \
                 *(D) = H5_GLUE3(H5T_NATIVE_, DTYPE, _NEG_INF_g);                                             \
@@ -751,10 +751,9 @@
                                                                                                              \
             /* Check for more bits of precision in src than available in dst */                              \
             if ((high_bit_pos - low_bit_pos) >= dprec) {                                                     \
-                H5T_conv_ret_t except_ret =                                                                  \
-                    (conv_ctx->u.conv.cb_struct.func)(H5T_CONV_EXCEPT_PRECISION,                             \
-                            conv_ctx->u.conv.src_type_id, conv_ctx->u.conv.dst_type_id, S, D,                \
-                            conv_ctx->u.conv.cb_struct.user_data);                                           \
+                H5T_conv_ret_t except_ret = (conv_ctx->u.conv.cb_struct.func)(                               \
+                    H5T_CONV_EXCEPT_PRECISION, conv_ctx->u.conv.src_type_id, conv_ctx->u.conv.dst_type_id,   \
+                    S, D, conv_ctx->u.conv.cb_struct.user_data);                                             \
                 if (except_ret == H5T_CONV_UNHANDLED)                                                        \
                     /* Let compiler convert if case is ignored by user handler*/                             \
                     *(D) = (DT)(*(S));                                                                       \
@@ -8260,29 +8259,33 @@ H5T__conv_ldouble_ullong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 /* Conversions for _Float16 type */
 #ifdef H5_HAVE__FLOAT16
 herr_t
-H5T__conv_schar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_schar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_xF(SCHAR, FLOAT16, signed char, H5__Float16, -, -);
 }
 
 herr_t
-H5T__conv_uchar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_uchar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_xF(UCHAR, FLOAT16, unsigned char, H5__Float16, -, -);
 }
 
 herr_t
-H5T__conv_short__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_short__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_xF(SHORT, FLOAT16, short, H5__Float16, -, -);
 }
 
 herr_t
-H5T__conv_ushort__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_ushort__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8291,8 +8294,9 @@ H5T__conv_ushort__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_co
 }
 
 herr_t
-H5T__conv_int__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                       size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_int__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                       size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                       void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8301,8 +8305,9 @@ H5T__conv_int__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_
 }
 
 herr_t
-H5T__conv_uint__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                        size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_uint__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                        size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                        void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8311,8 +8316,9 @@ H5T__conv_uint__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv
 }
 
 herr_t
-H5T__conv_long__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                        size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_long__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                        size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                        void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8321,8 +8327,9 @@ H5T__conv_long__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv
 }
 
 herr_t
-H5T__conv_ulong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_ulong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8331,8 +8338,9 @@ H5T__conv_ulong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv_llong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_llong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8341,8 +8349,9 @@ H5T__conv_llong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv_ullong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_ullong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8351,8 +8360,9 @@ H5T__conv_ullong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_co
 }
 
 herr_t
-H5T__conv_float__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_float__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8361,8 +8371,9 @@ H5T__conv_float__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv_double__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_double__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8372,8 +8383,9 @@ H5T__conv_double__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_co
 
 #ifdef H5T_CONV_INTERNAL_LDOUBLE_FLOAT16
 herr_t
-H5T__conv_ldouble__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                           size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv_ldouble__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                           size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                           void H5_ATTR_UNUSED *bkg)
 {
     /* Suppress warning about non-standard floating-point literal suffix */
     H5_GCC_CLANG_DIAG_OFF("pedantic")
@@ -8383,8 +8395,9 @@ H5T__conv_ldouble__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_c
 #endif
 
 herr_t
-H5T__conv__Float16_schar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_schar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5_GCC_CLANG_DIAG_OFF("float-equal")
     H5T_CONV_Fx(FLOAT16, SCHAR, H5__Float16, signed char, SCHAR_MIN, SCHAR_MAX);
@@ -8392,8 +8405,9 @@ H5T__conv__Float16_schar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv__Float16_uchar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_uchar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5_GCC_CLANG_DIAG_OFF("float-equal")
     H5T_CONV_Fx(FLOAT16, UCHAR, H5__Float16, unsigned char, 0, UCHAR_MAX);
@@ -8401,8 +8415,9 @@ H5T__conv__Float16_uchar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv__Float16_short(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_short(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5_GCC_CLANG_DIAG_OFF("float-equal")
     H5T_CONV_Fx(FLOAT16, SHORT, H5__Float16, short, SHRT_MIN, SHRT_MAX);
@@ -8410,71 +8425,81 @@ H5T__conv__Float16_short(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_con
 }
 
 herr_t
-H5T__conv__Float16_ushort(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_ushort(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, USHORT, H5__Float16, unsigned short, 0, USHRT_MAX);
 }
 
 herr_t
-H5T__conv__Float16_int(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                       size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_int(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                       size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                       void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, INT, H5__Float16, int, INT_MIN, INT_MAX);
 }
 
 herr_t
-H5T__conv__Float16_uint(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                        size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_uint(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                        size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                        void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, UINT, H5__Float16, unsigned int, 0, UINT_MAX);
 }
 
 herr_t
-H5T__conv__Float16_long(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                        size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_long(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                        size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                        void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, LONG, H5__Float16, long, LONG_MIN, LONG_MAX);
 }
 
 herr_t
-H5T__conv__Float16_ulong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_ulong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, ULONG, H5__Float16, unsigned long, 0, ULONG_MAX);
 }
 
 herr_t
-H5T__conv__Float16_llong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_llong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, LLONG, H5__Float16, long long, LLONG_MIN, LLONG_MAX);
 }
 
 herr_t
-H5T__conv__Float16_ullong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_ullong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fX(FLOAT16, ULLONG, H5__Float16, unsigned long long, 0, ULLONG_MAX);
 }
 
 herr_t
-H5T__conv__Float16_float(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                         size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_float(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                         size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                         void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fF(FLOAT16, FLOAT, H5__Float16, float, -, -);
 }
 
 herr_t
-H5T__conv__Float16_double(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                          size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_double(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                          size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                          void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fF(FLOAT16, DOUBLE, H5__Float16, double, -, -);
 }
 
 herr_t
-H5T__conv__Float16_ldouble(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
-                           size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
+H5T__conv__Float16_ldouble(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                           size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
+                           void H5_ATTR_UNUSED *bkg)
 {
     H5T_CONV_fF(FLOAT16, LDOUBLE, H5__Float16, long double, -, -);
 }
@@ -8509,18 +8534,18 @@ H5T__conv_f_i(H5T_t *src_p, H5T_t *dst_p, H5T_cdata_t *cdata, const H5T_conv_ctx
     uint8_t      tmp1, tmp2;      /*temp variables for swapping bytes*/
 
     /* Conversion-related variables */
-    hssize_t       expo;                     /*source exponent        */
-    hssize_t       sign;                     /*source sign bit value         */
-    uint8_t       *int_buf = NULL;           /*buffer for temporary value    */
-    size_t         buf_size;                 /*buffer size for temporary value */
-    size_t         i;                        /*miscellaneous counters    */
-    ssize_t        msb_pos_s;                /*first bit(MSB) in an integer */
-    ssize_t        new_msb_pos;              /*MSB position after shifting mantissa by exponent */
-    hssize_t       shift_val;                /*shift value when shifting mantissa by exponent */
-    bool           truncated;                /*if fraction value is dropped  */
-    bool           reverse;                  /*if reverse order of destination at the end */
-    H5T_conv_ret_t except_ret;               /*return of callback function   */
-    herr_t         ret_value = SUCCEED;      /* Return value                 */
+    hssize_t       expo;                /*source exponent        */
+    hssize_t       sign;                /*source sign bit value         */
+    uint8_t       *int_buf = NULL;      /*buffer for temporary value    */
+    size_t         buf_size;            /*buffer size for temporary value */
+    size_t         i;                   /*miscellaneous counters    */
+    ssize_t        msb_pos_s;           /*first bit(MSB) in an integer */
+    ssize_t        new_msb_pos;         /*MSB position after shifting mantissa by exponent */
+    hssize_t       shift_val;           /*shift value when shifting mantissa by exponent */
+    bool           truncated;           /*if fraction value is dropped  */
+    bool           reverse;             /*if reverse order of destination at the end */
+    H5T_conv_ret_t except_ret;          /*return of callback function   */
+    herr_t         ret_value = SUCCEED; /* Return value                 */
 
     FUNC_ENTER_PACKAGE
 
@@ -8944,7 +8969,8 @@ H5T__conv_f_i(H5T_t *src_p, H5T_t *dst_p, H5T_cdata_t *cdata, const H5T_conv_ctx
                                             "can't handle conversion exception");
                         }
                         else {
-                            if (truncated && conv_ctx->u.conv.cb_struct.func) { /*If user's exception handler is present, use it*/
+                            if (truncated && conv_ctx->u.conv.cb_struct
+                                                 .func) { /*If user's exception handler is present, use it*/
                                 /*reverse order first*/
                                 H5T__reverse_order(src_rev, s, src_p->shared->size,
                                                    src_p->shared->u.atomic.order);
@@ -8973,7 +8999,8 @@ H5T__conv_f_i(H5T_t *src_p, H5T_t *dst_p, H5T_cdata_t *cdata, const H5T_conv_ctx
                 else if (H5T_SGN_2 == dst.u.i.sign) { /*Destination is signed*/
                     if (sign) {                       /*source is negative*/
                         if ((new_msb_pos >= 0) && ((size_t)new_msb_pos < dst.prec - 1)) {
-                            if (truncated && conv_ctx->u.conv.cb_struct.func) { /*If user's exception handler is present, use it*/
+                            if (truncated && conv_ctx->u.conv.cb_struct
+                                                 .func) { /*If user's exception handler is present, use it*/
                                 /*reverse order first*/
                                 H5T__reverse_order(src_rev, s, src_p->shared->size,
                                                    src_p->shared->u.atomic.order);
@@ -9054,7 +9081,8 @@ H5T__conv_f_i(H5T_t *src_p, H5T_t *dst_p, H5T_cdata_t *cdata, const H5T_conv_ctx
                             }
                         }
                         else if (new_msb_pos < (ssize_t)dst.prec - 1) {
-                            if (truncated && conv_ctx->u.conv.cb_struct.func) { /*If user's exception handler is present, use it*/
+                            if (truncated && conv_ctx->u.conv.cb_struct
+                                                 .func) { /*If user's exception handler is present, use it*/
                                 /*reverse order first*/
                                 H5T__reverse_order(src_rev, s, src_p->shared->size,
                                                    src_p->shared->u.atomic.order);
diff --git a/src/H5Tpkg.h b/src/H5Tpkg.h
index d5640af..626c9d5 100644
--- a/src/H5Tpkg.h
+++ b/src/H5Tpkg.h
@@ -986,60 +986,86 @@ H5_DLL herr_t H5T__conv_ldouble_ullong(H5T_t *src, H5T_t *dst, H5T_cdata_t *cdat
                                        size_t bkg_stride, void *buf, void *bkg);
 
 #ifdef H5_HAVE__FLOAT16
-H5_DLL herr_t H5T__conv_schar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_uchar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_short__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_ushort__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_int__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                     size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_uint__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                      size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_long__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                      size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_ulong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_llong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_ullong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_float__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv_double__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_schar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_uchar__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_short__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_ushort__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_int__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                                     size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf,
+                                     void *bkg);
+H5_DLL herr_t H5T__conv_uint__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                      const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                      size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_long__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                      const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                      size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_ulong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_llong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_ullong__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_float__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_double__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
 #ifdef H5T_CONV_INTERNAL_LDOUBLE_FLOAT16
-H5_DLL herr_t H5T__conv_ldouble__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                         size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv_ldouble__Float16(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                         const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                         size_t bkg_stride, void *buf, void *bkg);
 #endif
-H5_DLL herr_t H5T__conv__Float16_schar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_uchar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_short(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_ushort(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_int(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                     size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_uint(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                      size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_long(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                      size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_ulong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_llong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_ullong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_float(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                       size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_double(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                        size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
-H5_DLL herr_t H5T__conv__Float16_ldouble(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx, size_t nelmts,
-                                         size_t buf_stride, size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_schar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_uchar(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_short(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_ushort(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_int(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata, const H5T_conv_ctx_t *conv_ctx,
+                                     size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf,
+                                     void *bkg);
+H5_DLL herr_t H5T__conv__Float16_uint(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                      const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                      size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_long(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                      const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                      size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_ulong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_llong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_ullong(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_float(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                       const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                       size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_double(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                        const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                        size_t bkg_stride, void *buf, void *bkg);
+H5_DLL herr_t H5T__conv__Float16_ldouble(H5T_t *st, H5T_t *dt, H5T_cdata_t *cdata,
+                                         const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride,
+                                         size_t bkg_stride, void *buf, void *bkg);
 #endif
 
 /* Bit twiddling functions */
diff --git a/test/dt_arith.c b/test/dt_arith.c
index e2788e2..3c21896 100644
--- a/test/dt_arith.c
+++ b/test/dt_arith.c
@@ -2951,8 +2951,19 @@ test_conv_flt_1_hw_conv_from_flt(void *hw_dst, unsigned char *src_buf, size_t id
     memcpy(&aligned, src_buf + idx * sizeof(float), sizeof(float));
 
     switch (dst_type) {
-#ifdef H5_HAVE__FLOAT16
+        case FLT_FLOAT:
+            *((float *)hw_dst) = aligned;
+            break;
+        case FLT_DOUBLE:
+            *((double *)hw_dst) = (double)aligned;
+            break;
+#if H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE
+        case FLT_LDOUBLE:
+            *((long double *)hw_dst) = (long double)aligned;
+            break;
+#endif
         case FLT_FLOAT16:
+#ifdef H5_HAVE__FLOAT16
             /* Suppress warning about non-standard floating-point literal suffix */
             H5_GCC_CLANG_DIAG_OFF("pedantic")
 
@@ -2967,17 +2978,6 @@ test_conv_flt_1_hw_conv_from_flt(void *hw_dst, unsigned char *src_buf, size_t id
             H5_GCC_CLANG_DIAG_ON("pedantic")
             break;
 #endif
-        case FLT_FLOAT:
-            *((float *)hw_dst) = aligned;
-            break;
-        case FLT_DOUBLE:
-            *((double *)hw_dst) = (double)aligned;
-            break;
-#if H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE
-        case FLT_LDOUBLE:
-            *((long double *)hw_dst) = (long double)aligned;
-            break;
-#endif
         case INT_SCHAR:
         case INT_UCHAR:
         case INT_SHORT:
@@ -3024,22 +3024,6 @@ test_conv_flt_1_hw_conv_from_double(void *hw_dst, unsigned char *src_buf, size_t
     memcpy(&aligned, src_buf + idx * sizeof(double), sizeof(double));
 
     switch (dst_type) {
-#ifdef H5_HAVE__FLOAT16
-        case FLT_FLOAT16:
-            /* Suppress warning about non-standard floating-point literal suffix */
-            H5_GCC_CLANG_DIAG_OFF("pedantic")
-
-            *((H5__Float16 *)hw_dst) = (H5__Float16)aligned;
-
-            /* Check for overflow and underflow */
-            if (fabs(aligned) > (double)FLT16_MAX)
-                ret = 1;
-            else if (fabs(aligned) < (double)FLT16_MIN)
-                ret = 2;
-
-            H5_GCC_CLANG_DIAG_ON("pedantic")
-            break;
-#endif
         case FLT_FLOAT:
             *((float *)hw_dst) = (float)aligned;
 
@@ -3058,6 +3042,22 @@ test_conv_flt_1_hw_conv_from_double(void *hw_dst, unsigned char *src_buf, size_t
             *((long double *)hw_dst) = (long double)aligned;
             break;
 #endif
+        case FLT_FLOAT16:
+#ifdef H5_HAVE__FLOAT16
+            /* Suppress warning about non-standard floating-point literal suffix */
+            H5_GCC_CLANG_DIAG_OFF("pedantic")
+
+            *((H5__Float16 *)hw_dst) = (H5__Float16)aligned;
+
+            /* Check for overflow and underflow */
+            if (fabs(aligned) > (double)FLT16_MAX)
+                ret = 1;
+            else if (fabs(aligned) < (double)FLT16_MIN)
+                ret = 2;
+
+            H5_GCC_CLANG_DIAG_ON("pedantic")
+            break;
+#endif
         case INT_SCHAR:
         case INT_UCHAR:
         case INT_SHORT:
@@ -3105,22 +3105,6 @@ test_conv_flt_1_hw_conv_from_ldouble(void *hw_dst, unsigned char *src_buf, size_
     memcpy(&aligned, src_buf + idx * sizeof(long double), sizeof(long double));
 
     switch (dst_type) {
-#ifdef H5_HAVE__FLOAT16
-        case FLT_FLOAT16:
-            /* Suppress warning about non-standard floating-point literal suffix */
-            H5_GCC_CLANG_DIAG_OFF("pedantic")
-
-            *((H5__Float16 *)hw_dst) = (H5__Float16)aligned;
-
-            /* Check for overflow and underflow */
-            if (fabsl(aligned) > (long double)FLT16_MAX)
-                ret = 1;
-            else if (fabsl(aligned) < (long double)FLT16_MIN)
-                ret = 2;
-
-            H5_GCC_CLANG_DIAG_ON("pedantic")
-            break;
-#endif
         case FLT_FLOAT:
             *((float *)hw_dst) = (float)aligned;
 
@@ -3144,6 +3128,22 @@ test_conv_flt_1_hw_conv_from_ldouble(void *hw_dst, unsigned char *src_buf, size_
         case FLT_LDOUBLE:
             *((long double *)hw_dst) = aligned;
             break;
+        case FLT_FLOAT16:
+#ifdef H5_HAVE__FLOAT16
+            /* Suppress warning about non-standard floating-point literal suffix */
+            H5_GCC_CLANG_DIAG_OFF("pedantic")
+
+            *((H5__Float16 *)hw_dst) = (H5__Float16)aligned;
+
+            /* Check for overflow and underflow */
+            if (fabsl(aligned) > (long double)FLT16_MAX)
+                ret = 1;
+            else if (fabsl(aligned) < (long double)FLT16_MIN)
+                ret = 2;
+
+            H5_GCC_CLANG_DIAG_ON("pedantic")
+            break;
+#endif
         case INT_SCHAR:
         case INT_UCHAR:
         case INT_SHORT:
diff --git a/tools/test/h5dump/CMakeTestsXML.cmake b/tools/test/h5dump/CMakeTestsXML.cmake
index b322d76..c666733 100644
--- a/tools/test/h5dump/CMakeTestsXML.cmake
+++ b/tools/test/h5dump/CMakeTestsXML.cmake
@@ -57,6 +57,7 @@
       tdset.h5
       tempty.h5
       textlink.h5
+      tfloat16.h5
       tfpformat.h5
       tgroup.h5
       thlink.h5
@@ -106,6 +107,7 @@
       tenum.h5.xml
       test35.nc.xml
       textlink.h5.xml
+      tfloat16.h5.xml
       tfpformat.h5.xml
       tgroup.h5.xml
       thlink.h5.xml
@@ -294,6 +296,9 @@
   ADD_XML_H5_TEST (torderattr3.h5 0 -H --sort_by=creation_order --sort_order=ascending torderattr.h5)
   ADD_XML_H5_TEST (torderattr4.h5 0 -H --sort_by=creation_order --sort_order=descending torderattr.h5)
 
+  # Add test for _Float16 type
+  ADD_XML_H5_TEST (tfloat16.h5 0 tfloat16.h5)
+
   # tests for floating point user defined printf format
   ADD_XML_H5_TEST (tfpformat.h5 0 -u -m %.7f tfpformat.h5)
 
diff --git a/tools/test/h5dump/expected/xml/tfloat16.h5.xml b/tools/test/h5dump/expected/xml/tfloat16.h5.xml
new file mode 100644
index 0000000..6b2c041
--- /dev/null
+++ b/tools/test/h5dump/expected/xml/tfloat16.h5.xml
@@ -0,0 +1,302 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<hdf5:HDF5-File xmlns:hdf5="http://hdfgroup.org/HDF5/XML/schema/HDF5-File.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://hdfgroup.org/HDF5/XML/schema/HDF5-File http://www.hdfgroup.org/HDF5/XML/schema/HDF5-File.xsd">
+<hdf5:RootGroup OBJ-XID="xid_96" H5Path="/">
+   <hdf5:Dataset Name="DS16BITS" OBJ-XID="xid_800" H5Path= "/DS16BITS" Parents="xid_96" H5ParentPaths="/">
+      <hdf5:StorageLayout>
+         <hdf5:ContiguousLayout/>
+      </hdf5:StorageLayout>
+      <hdf5:FillValueInfo FillTime="FillIfSet" AllocationTime="Late">
+         <hdf5:FillValue>
+            <hdf5:NoFill/>
+         </hdf5:FillValue>
+      </hdf5:FillValueInfo>
+      <hdf5:Dataspace>
+         <hdf5:SimpleDataspace Ndims="2">
+            <hdf5:Dimension  DimSize="8" MaxDimSize="8"/>
+            <hdf5:Dimension  DimSize="16" MaxDimSize="16"/>
+         </hdf5:SimpleDataspace>
+      </hdf5:Dataspace>
+      <hdf5:DataType>
+         <hdf5:AtomicType>
+            <hdf5:FloatType ByteOrder="LE" Size="2" SignBitLocation="15" ExponentBits="5" ExponentLocation="10" MantissaBits="10" MantissaLocation="0" />
+         </hdf5:AtomicType>
+      </hdf5:DataType>
+      <hdf5:Attribute Name="DS16BITS">
+         <hdf5:Dataspace>
+            <hdf5:SimpleDataspace Ndims="1">
+               <hdf5:Dimension  DimSize="128" MaxDimSize="128"/>
+            </hdf5:SimpleDataspace>
+         </hdf5:Dataspace>
+         <hdf5:DataType>
+            <hdf5:AtomicType>
+               <hdf5:FloatType ByteOrder="LE" Size="2" SignBitLocation="15" ExponentBits="5" ExponentLocation="10" MantissaBits="10" MantissaLocation="0" />
+            </hdf5:AtomicType>
+         </hdf5:DataType>
+         <hdf5:Data>
+            <hdf5:DataFromFile>
+            16
+            0.5
+            1
+            1.5
+            2
+            2.5
+            3
+            3.5
+            4
+            4.5
+            5
+            5.5
+            6
+            6.5
+            7
+            7.5
+            15
+            0.5625
+            1.0625
+            1.5625
+            2.0625
+            2.5625
+            3.0625
+            3.5625
+            4.0625
+            4.5625
+            5.0625
+            5.5625
+            6.0625
+            6.5625
+            7.0625
+            7.5625
+            14
+            0.625
+            1.125
+            1.625
+            2.125
+            2.625
+            3.125
+            3.625
+            4.125
+            4.625
+            5.125
+            5.625
+            6.125
+            6.625
+            7.125
+            7.625
+            13
+            0.6875
+            1.1875
+            1.6875
+            2.1875
+            2.6875
+            3.1875
+            3.6875
+            4.1875
+            4.6875
+            5.1875
+            5.6875
+            6.1875
+            6.6875
+            7.1875
+            7.6875
+            12
+            0.75
+            1.25
+            1.75
+            2.25
+            2.75
+            3.25
+            3.75
+            4.25
+            4.75
+            5.25
+            5.75
+            6.25
+            6.75
+            7.25
+            7.75
+            11
+            0.8125
+            1.3125
+            1.8125
+            2.3125
+            2.8125
+            3.3125
+            3.8125
+            4.3125
+            4.8125
+            5.3125
+            5.8125
+            6.3125
+            6.8125
+            7.3125
+            7.8125
+            10
+            0.875
+            1.375
+            1.875
+            2.375
+            2.875
+            3.375
+            3.875
+            4.375
+            4.875
+            5.375
+            5.875
+            6.375
+            6.875
+            7.375
+            7.875
+            9
+            0.9375
+            1.4375
+            1.9375
+            2.4375
+            2.9375
+            3.4375
+            3.9375
+            4.4375
+            4.9375
+            5.4375
+            5.9375
+            6.4375
+            6.9375
+            7.4375
+            7.9375
+            </hdf5:DataFromFile>
+         </hdf5:Data>
+      </hdf5:Attribute>
+      <hdf5:Data>
+         <hdf5:DataFromFile>
+         16
+         0.5
+         1
+         1.5
+         2
+         2.5
+         3
+         3.5
+         4
+         4.5
+         5
+         5.5
+         6
+         6.5
+         7
+         7.5
+         15
+         0.5625
+         1.0625
+         1.5625
+         2.0625
+         2.5625
+         3.0625
+         3.5625
+         4.0625
+         4.5625
+         5.0625
+         5.5625
+         6.0625
+         6.5625
+         7.0625
+         7.5625
+         14
+         0.625
+         1.125
+         1.625
+         2.125
+         2.625
+         3.125
+         3.625
+         4.125
+         4.625
+         5.125
+         5.625
+         6.125
+         6.625
+         7.125
+         7.625
+         13
+         0.6875
+         1.1875
+         1.6875
+         2.1875
+         2.6875
+         3.1875
+         3.6875
+         4.1875
+         4.6875
+         5.1875
+         5.6875
+         6.1875
+         6.6875
+         7.1875
+         7.6875
+         12
+         0.75
+         1.25
+         1.75
+         2.25
+         2.75
+         3.25
+         3.75
+         4.25
+         4.75
+         5.25
+         5.75
+         6.25
+         6.75
+         7.25
+         7.75
+         11
+         0.8125
+         1.3125
+         1.8125
+         2.3125
+         2.8125
+         3.3125
+         3.8125
+         4.3125
+         4.8125
+         5.3125
+         5.8125
+         6.3125
+         6.8125
+         7.3125
+         7.8125
+         10
+         0.875
+         1.375
+         1.875
+         2.375
+         2.875
+         3.375
+         3.875
+         4.375
+         4.875
+         5.375
+         5.875
+         6.375
+         6.875
+         7.375
+         7.875
+         9
+         0.9375
+         1.4375
+         1.9375
+         2.4375
+         2.9375
+         3.4375
+         3.9375
+         4.4375
+         4.9375
+         5.4375
+         5.9375
+         6.4375
+         6.9375
+         7.4375
+         7.9375
+         </hdf5:DataFromFile>
+      </hdf5:Data>
+   </hdf5:Dataset>
+</hdf5:RootGroup>
+</hdf5:HDF5-File>
diff --git a/tools/test/h5dump/testh5dumpxml.sh.in b/tools/test/h5dump/testh5dumpxml.sh.in
index 880fc6b..95a4bd5 100644
--- a/tools/test/h5dump/testh5dumpxml.sh.in
+++ b/tools/test/h5dump/testh5dumpxml.sh.in
@@ -100,6 +100,7 @@ $SRC_H5DUMP_TESTFILES/tdatareg.h5
 $SRC_H5DUMP_TESTFILES/tdset.h5
 $SRC_H5DUMP_TESTFILES/tempty.h5
 $SRC_H5DUMP_TESTFILES/textlink.h5
+$SRC_H5DUMP_TESTFILES/tfloat16.h5
 $SRC_H5DUMP_TESTFILES/tfpformat.h5
 $SRC_H5DUMP_TESTFILES/tgroup.h5
 $SRC_H5DUMP_TESTFILES/thlink.h5
@@ -150,6 +151,7 @@ $SRC_H5DUMP_OUTFILES/xml/tempty-ns-2.h5.xml
 $SRC_H5DUMP_OUTFILES/xml/tenum.h5.xml
 $SRC_H5DUMP_OUTFILES/xml/test35.nc.xml
 $SRC_H5DUMP_OUTFILES/xml/textlink.h5.xml
+$SRC_H5DUMP_OUTFILES/xml/tfloat16.h5.xml
 $SRC_H5DUMP_OUTFILES/xml/tfpformat.h5.xml
 $SRC_H5DUMP_OUTFILES/xml/tgroup.h5.xml
 $SRC_H5DUMP_OUTFILES/xml/thlink.h5.xml
@@ -383,6 +385,9 @@ TOOLTEST torderattr2.h5.xml --xml -H --sort_by=name --sort_order=descending tord
 TOOLTEST torderattr3.h5.xml --xml -H --sort_by=creation_order --sort_order=ascending torderattr.h5
 TOOLTEST torderattr4.h5.xml --xml -H --sort_by=creation_order --sort_order=descending torderattr.h5
 
+# test for _Float16 type
+TOOLTEST tfloat16.h5.xml --xml tfloat16.h5 
+
 # tests for floating point user defined printf format
 TOOLTEST tfpformat.h5.xml -u -m %.7f tfpformat.h5