[svn-r26333] Eliminates gcc warnings due to -Wunsuffixed-float-constants.

- Adds 'F' suffixes for most float constants.

- A few constants MUST be of type double. These now receive the long
  double L suffix and are then cast to double. I do this via a new
  H5_DOUBLE() macro which was added to H5private.h.

Fixes: HDFFV-9148

Tested on: h5committest

10 files changed, 161 insertions, 155 deletions

diff --git a/tools/h5diff/h5diffgentest.c b/tools/h5diff/h5diffgentest.c
index 80405e9..1b80317 100644
--- a/tools/h5diff/h5diffgentest.c
+++ b/tools/h5diff/h5diffgentest.c
@@ -317,10 +317,10 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
     */
 
     {
-        double data1[3][2] = {{1,1},  {1,1},       {0,0}};
-        double data2[3][2] = {{0,1.1},{1.01,1.001},{0,1}};
-        double data3[3][2] = {{100,100},{100,100},{100,100}};
-        double data4[3][2] = {{105,120},{160,95},{80,40}};
+        double data1[3][2] = {{  1.0F,   1.0F}, {  1.00F,   1.000F}, {  0.0F,   0.0F}};
+        double data2[3][2] = {{  0.0F,   1.1F}, {  1.01F,   1.001F}, {  0.0F,   1.0F}};
+        double data3[3][2] = {{100.0F, 100.0F}, {100.00F, 100.000F}, {100.0F, 100.0F}};
+        double data4[3][2] = {{105.0F, 120.0F}, {160.00F,  95.000F}, { 80.0F,  40.0F}};
 
         write_dset(gid1,2,dims2,"dset1",H5T_NATIVE_DOUBLE,data1);
         write_dset(gid2,2,dims2,"dset2",H5T_NATIVE_DOUBLE,data2);
@@ -371,8 +371,8 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
     *-------------------------------------------------------------------------
     */
     {
-        double data9[3][2] = {{100,100},{100,0},{0,100}};
-        double data10[3][2] ={{120,80}, {0,100},{0,50}};
+        double data9[3][2] = {{100.0F, 100.0F}, {100.0F,   0.0F}, {0.0F, 100.0F}};
+        double data10[3][2] ={{120.0F,  80.0F}, {  0.0F, 100.0F}, {0.0F,  50.0F}};
 
         write_dset(gid1,2,dims2,"dset9",H5T_NATIVE_DOUBLE,data9);
         write_dset(gid1,2,dims2,"dset10",H5T_NATIVE_DOUBLE,data10);
@@ -393,8 +393,14 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         /* epsilon = 0.0000000000000001 = 1e-16
          * system epsilon for double : DBL_EPSILON = 2.22045E-16
          */
-        double data13[3][2] ={{0.0000000000000000, 0.0000000000000001},{0.0000000000000001, 0.0000000000000000},{0.00000000000000033, 0.0000000000000001}};
-        double data14[3][2] ={{0.0000000000000000, 0.0000000000000004},{0.0000000000000002, 0.0000000000000001},{0.0000000000000001, 0.00000000000000000}};
+        double data13[3][2] ={
+            {H5_DOUBLE(0.0000000000000000),  H5_DOUBLE(0.0000000000000001)},
+            {H5_DOUBLE(0.0000000000000001),  H5_DOUBLE(0.0000000000000000)},
+            {H5_DOUBLE(0.00000000000000033), H5_DOUBLE(0.0000000000000001)}};
+        double data14[3][2] ={
+            {H5_DOUBLE(0.0000000000000000), H5_DOUBLE(0.0000000000000004)},
+            {H5_DOUBLE(0.0000000000000002), H5_DOUBLE(0.0000000000000001)},
+            {H5_DOUBLE(0.0000000000000001), H5_DOUBLE(0.00000000000000000)}};
 
         write_dset(gid1,2,dims2,"fp1",H5T_NATIVE_FLOAT,data11);
         write_dset(gid1,2,dims2,"fp2",H5T_NATIVE_FLOAT,data12);
@@ -412,7 +418,7 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         *-------------------------------------------------------------------------
         */
 
-        long double data15[3][2] ={{1,1},{1,1},{1,1}};
+        long double data15[3][2] ={{1.0L,1.0L},{1.0L,1.0L},{1.0L,1.0L}};
 
         write_dset(gid1,2,dims2,"ld",H5T_NATIVE_LDOUBLE,data15);
 
@@ -430,19 +436,19 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         float data15[6];
         float data16[6];
 
-        data15[0] = (float) sqrt( (double)-1 );
-        data15[1] = 1;
-        data15[2] = (float) sqrt( (double)-1 );
-        data15[3] = 1;
-        data15[4] = 1;
-        data15[5] = 1;
+        data15[0] = (float)HDsqrt(-1.0F);
+        data15[1] = 1.0F;
+        data15[2] = (float)HDsqrt(-1.0F);
+        data15[3] = 1.0F;
+        data15[4] = 1.0F;
+        data15[5] = 1.0F;
 
-        data16[0] = (float) sqrt( (double)-1 );
-        data16[1] = (float) sqrt( (double)-1 );
-        data16[2] = 1;
-        data16[3] = 1;
-        data16[4] = 1;
-        data16[5] = 1;
+        data16[0] = (float)HDsqrt(-1.0F);
+        data16[1] = (float)HDsqrt(-1.0F);
+        data16[2] = 1.0F;
+        data16[3] = 1.0F;
+        data16[4] = 1.0F;
+        data16[5] = 1.0F;
 
         write_dset(gid1,1,dims1,"fp15",H5T_NATIVE_FLOAT,data15);
         write_dset(gid1,1,dims1,"fp16",H5T_NATIVE_FLOAT,data16);
@@ -458,19 +464,19 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         double data17[6];
         double data18[6];
 
-        data17[0] = sqrt( (double)-1 );
-        data17[1] = 1;
-        data17[2] = sqrt( (double)-1 );
-        data17[3] = 1;
-        data17[4] = 1;
-        data17[5] = 1;
+        data17[0] = HDsqrt(-1.0F);
+        data17[1] = 1.0F;
+        data17[2] = HDsqrt(-1.0F);
+        data17[3] = 1.0F;
+        data17[4] = 1.0F;
+        data17[5] = 1.0F;
 
-        data18[0] = (float) sqrt( (double)-1 );
-        data18[1] = (float) sqrt( (double)-10000 );
-        data18[2] = 1;
-        data18[3] = 1;
-        data18[4] = 1;
-        data18[5] = 1;
+        data18[0] = HDsqrt(-1.0F);
+        data18[1] = HDsqrt(-10000.0F);
+        data18[2] = 1.0F;
+        data18[3] = 1.0F;
+        data18[4] = 1.0F;
+        data18[5] = 1.0F;
 
         write_dset(gid1,1,dims1,"fp17",H5T_NATIVE_DOUBLE,data17);
         write_dset(gid1,1,dims1,"fp18",H5T_NATIVE_DOUBLE,data18);
@@ -485,11 +491,11 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         float  data19[6];
         double data20[6];
 
-        data19[0] = data19[1] = data19[2] = log(0);
-        data19[3] = data19[4] = data19[5] = -log(0);
+        data19[0] = data19[1] = data19[2] = (float)HDlog(0.0F);
+        data19[3] = data19[4] = data19[5] = (float)-HDlog(0.0F);
 
-        data20[0] = data20[1] = data20[2] = log(0);
-        data20[3] = data20[4] = data20[5] = -log(0);
+        data20[0] = data20[1] = data20[2] = HDlog(0.0F);
+        data20[3] = data20[4] = data20[5] = -HDlog(0.0F);
 
         write_dset(gid1,1,dims1,"fp19",H5T_NATIVE_FLOAT,data19);
         write_dset(gid1,1,dims1,"fp19_COPY",H5T_NATIVE_FLOAT,data19);
@@ -514,15 +520,15 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
         size_t   type_size;
         hid_t    tid;
 
-        buf1[0].d = sqrt( (double)-1 );
-        buf1[0].f = (float) sqrt( (double)-1 );
-        buf2[0].d = sqrt( (double)-1 );
-        buf2[0].f = (float) sqrt( (double)-1 );
+        buf1[0].d = HDsqrt(-1.0F);
+        buf1[0].f = (float)HDsqrt(-1.0F);
+        buf2[0].d = HDsqrt(-1.0F);
+        buf2[0].f = (float)HDsqrt(-1.0F);
 
-        buf1[1].d = sqrt( (double)-1 );
-        buf1[1].f = (float) sqrt( (double)-1 );
-        buf2[1].d = 0;
-        buf2[1].f = 0;
+        buf1[1].d = HDsqrt(-1.0F);
+        buf1[1].f = (float)HDsqrt(-1.0F);
+        buf2[1].d = 0.0F;
+        buf2[1].f = 0.0F;
 
         type_size = sizeof( cmp1_t );
         tid = H5Tcreate (H5T_COMPOUND, type_size );
@@ -555,7 +561,7 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3)
             int i;
         } cmp3_t;
 
-        double       data2[6] = {0,0,0,0,0,0};
+        double       data2[6] = {0.0F, 0.0F, 0.0F, 0.0F, 0.0F, 0.0F};
         int          data3[6] = {0,0,0,0,0,0};
         int          data4[3][2] = {{0,0},{0,0},{0,0}};
         int          data5[2][2] = {{0,0},{0,0}};
@@ -770,10 +776,10 @@ int test_datatypes(const char *fname)
     int     buf3b[3][2] = {{1,1},{3,4},{5,6}};
     long    buf4a[3][2] = {{1,1},{1,1},{1,1}};
     long    buf4b[3][2] = {{1,1},{3,4},{5,6}};
-    float   buf5a[3][2] = {{1,1},{1,1},{1,1}};
-    float   buf5b[3][2] = {{1,1},{3,4},{5,6}};
-    double  buf6a[3][2] = {{1,1},{1,1},{1,1}};
-    double  buf6b[3][2] = {{1,1},{3,4},{5,6}};
+    float   buf5a[3][2] = {{1.0F, 1.0F}, {1.0F, 1.0F}, {1.0F, 1.0F}};
+    float   buf5b[3][2] = {{1.0F, 1.0F}, {3.0F, 4.0F}, {5.0F, 6.0F}};
+    double  buf6a[3][2] = {{1.0F, 1.0F}, {1.0F, 1.0F}, {1.0F, 1.0F}};
+    double  buf6b[3][2] = {{1.0F, 1.0F}, {3.0F, 4.0F}, {5.0F, 6.0F}};
 
     /*unsigned/signed test
     signed char -128 to 127
@@ -1025,10 +1031,10 @@ static int test_attributes_verbose_level(const char *fname1, const char *fname2)
 
     /* file1 attr */
     int    f1_attr_idata[2]= {1,2};        /* integer */
-    float  f1_attr_fdata[2]= {1.1,2.2};    /* float */
+    float  f1_attr_fdata[2]= {1.1F,2.2F};    /* float */
     /* file2 attr */
     int    f2_attr_idata[2]= {2,3};        /* integer */
-    float  f2_attr_fdata[2]= {2.1,3.2};    /* float */
+    float  f2_attr_fdata[2]= {2.1F,3.2F};    /* float */
 
 
     /*----------------------------------------------------------------------
@@ -4363,7 +4369,7 @@ static void test_comps_array (const char *fname, const char *dset, const char *a
         for(j=0; j < SDIM_CMPD_ARRAY; j++) 
         {
             wdata[i].cmpd2[j].i2 = i*10 + diff;
-            wdata[i].cmpd2[j].f2 = (float)(i*10.5) + diff;
+            wdata[i].cmpd2[j].f2 = (float)(i*10.5F) + diff;
         } /* end for */
     }
 
@@ -4480,7 +4486,7 @@ static void test_comps_vlen (const char * fname, const char *dset, const char *a
         for(j=0; j<(i+1); j++)
         {
             ((cmpd2_t *)wdata[i].vl.p)[j].i2 = i*10 + diff;
-            ((cmpd2_t *)wdata[i].vl.p)[j].f2 = (float)(i*10.5) + diff;
+            ((cmpd2_t *)wdata[i].vl.p)[j].f2 = (float)(i*10.5F) + diff;
         } /* end for */
     } /* end for */
 
@@ -4606,7 +4612,7 @@ static void test_comps_array_vlen (const char * fname, const char *dset,const ch
             {
                 /* Initialize data of compound3 */
                 ((cmpd3_t *)wdata[i].cmpd2[j].vl.p)[k].i3 = j*10 + diff;
-                ((cmpd3_t *)wdata[i].cmpd2[j].vl.p)[k].f3 = (float)(j*10.5) + diff;
+                ((cmpd3_t *)wdata[i].cmpd2[j].vl.p)[k].f3 = (float)(j*10.5F) + diff;
             } /* end for */
         } /* end for */
     }
@@ -4753,8 +4759,8 @@ static void test_comps_vlen_arry (const char * fname, const char *dset, const ch
             for (k=0; k < SDIM_CMPD_ARRAY; k++)
             {
                 /* compound 3 data */
-                ((cmpd2_t *)(wdata[i].vl.p))[j].cmpd3[k].i3 = k*10.5 + diff;
-                ((cmpd2_t *)(wdata[i].vl.p))[j].cmpd3[k].f3 = (float)(k*10.5) + diff;
+                ((cmpd2_t *)(wdata[i].vl.p))[j].cmpd3[k].i3 = k*10.5F + diff;
+                ((cmpd2_t *)(wdata[i].vl.p))[j].cmpd3[k].f3 = (float)(k*10.5F) + diff;
             }
         } /* end for */
     } /* end for */
@@ -5246,27 +5252,27 @@ void write_attr_in(hid_t loc_id,
     char       buf1[2][STR_SIZE]= {"ab","de"};        /* string */
     char       *buf1a[2];                             /* VL string */
     char       buf2[2]= {1,2};                 /* bitfield, opaque */
-    s_t        buf3[2]= {{1,2},{3,4}};         /* compound */
+    s_t        buf3[2]= {{1,2.0F},{3,4.0F}};         /* compound */
     hobj_ref_t buf4[2];                        /* reference */
     e_t        buf45[2]= {RED,RED};            /* enum */
     hvl_t      buf5[2];                        /* vlen */
     hsize_t    dimarray[1]={3};                /* array dimension */
     int        buf6[2][3]= {{1,2,3},{4,5,6}};  /* array */
     int        buf7[2]= {1,2};                 /* integer */
-    float      buf8[2]= {1,2};                 /* float */
+    float      buf8[2]= {1.0F, 2.0F};                 /* float */
 
     /* create 2D attributes with dimension [3][2], 6 elements */
     hsize_t    dims2[2]={3,2};
-    char       buf12[3][2][STR_SIZE]= {{"ab","cd"},{"ef","gh"},{"ij","kl"}};     /* string */
-    char       *buf12a[3][2];                                               /* VL string */
-    char       buf22[3][2]= {{1,2},{3,4},{5,6}};                     /* bitfield, opaque */
-    s_t        buf32[6]= {{1,2},{3,4},{5,6},{7,8},{9,10},{11,12}};   /* compound */
-    hobj_ref_t buf42[3][2];                                          /* reference */
-    e_t        buf452[3][2];                                         /* enum */
-    hvl_t      buf52[3][2];                                          /* vlen */
-    int        buf62[6][3]= {{1,2,3},{4,5,6},{7,8,9},{10,11,12},{13,14,15},{16,17,18}};  /* array */
-    int        buf72[3][2]= {{1,2},{3,4},{5,6}};                     /* integer */
-    float      buf82[3][2]= {{1,2},{3,4},{5,6}};                     /* float */
+    char       buf12[3][2][STR_SIZE]= {{"ab","cd"},{"ef","gh"},{"ij","kl"}};            /* string */
+    char       *buf12a[3][2];                                                           /* VL string */
+    char       buf22[3][2]= {{1,2},{3,4},{5,6}};                                        /* bitfield, opaque */
+    s_t        buf32[6]= {{1,2.0F},{3,4.0F},{5,6.0F},{7,8.0F},{9,10.0F},{11,12.0F}};    /* compound */
+    hobj_ref_t buf42[3][2];                                                             /* reference */
+    e_t        buf452[3][2];                                                            /* enum */
+    hvl_t      buf52[3][2];                                                             /* vlen */
+    int        buf62[6][3]= {{1,2,3},{4,5,6},{7,8,9},{10,11,12},{13,14,15},{16,17,18}}; /* array */
+    int        buf72[3][2]= {{1,2},{3,4},{5,6}};                                        /* integer */
+    float      buf82[3][2]= {{1.0F,2.0F},{3.0F,4.0F},{5.0F,6.0F}};                      /* float */
 
     /* create 3D attributes with dimension [4][3][2], 24 elements */
     hsize_t    dims3[3]={4,3,2};
@@ -6017,7 +6023,7 @@ void write_attr_in(hid_t loc_id,
             for (k = 0; k < 2; k++) {
                 if (make_diffs) {
                     buf33[i][j][k].a=0;
-                    buf33[i][j][k].b=0;
+                    buf33[i][j][k].b=0.0F;
                 }
                 else {
                     buf33[i][j][k].a=n++;
@@ -6231,7 +6237,7 @@ void write_attr_in(hid_t loc_id,
             for (k = 0; k < 2; k++) {
                 if (make_diffs) {
                     buf73[i][j][k]=0;
-                    buf83[i][j][k]=0;
+                    buf83[i][j][k]=0.0F;
                 }
                 else {
                     buf73[i][j][k]=n++;
@@ -6303,26 +6309,26 @@ void write_dset_in(hid_t loc_id,
     char       buf1[2][STR_SIZE]= {"ab","de"}; /* string */
     char       *buf1a[2];                      /* VL string */
     char       buf2[2]= {1,2};                 /* bitfield, opaque */
-    s_t        buf3[2]= {{1,2},{3,4}};         /* compound */
+    s_t        buf3[2]= {{1,2.0F},{3,4.0F}};   /* compound */
     hobj_ref_t buf4[2];                        /* reference */
     e_t        buf45[2]= {RED,GREEN};          /* enum */
     hvl_t      buf5[2];                        /* vlen */
     hsize_t    dimarray[1]={3};                /* array dimension */
     int        buf6[2][3]= {{1,2,3},{4,5,6}};  /* array */
     int        buf7[2]= {1,2};                 /* integer */
-    float      buf8[2]= {1,2};                 /* float */
+    float      buf8[2]= {1.0F,2.0F};           /* float */
 
     /* create 2D attributes with dimension [3][2], 6 elements */
     hsize_t    dims2[2]={3,2};
     char       buf12[3][2][STR_SIZE]= {{"ab","cd"},{"ef","gh"},{"ij","kl"}};     /* string */
     char       *buf12a[3][2];                                        /* VL string */
     char       buf22[3][2]= {{1,2},{3,4},{5,6}};                     /* bitfield, opaque */
-    s_t        buf32[6]= {{1,2},{3,4},{5,6},{7,8},{9,10},{11,12}};   /* compound */
+    s_t        buf32[6]= {{1,2.0F},{3,4.0F},{5,6.0F},{7,8.0F},{9,10.0F},{11,12.0F}};   /* compound */
     hobj_ref_t buf42[3][2];                                          /* reference */
     hvl_t      buf52[3][2];                                          /* vlen */
     int        buf62[6][3]= {{1,2,3},{4,5,6},{7,8,9},{10,11,12},{13,14,15},{16,17,18}};  /* array */
     int        buf72[3][2]= {{1,2},{3,4},{5,6}};                     /* integer */
-    float      buf82[3][2]= {{1,2},{3,4},{5,6}};                     /* float */
+    float      buf82[3][2]= {{1.0F,2.0F},{3.0F,4.0F},{5.0F,6.0F}};                     /* float */
 
     /* create 3D attributes with dimension [4][3][2], 24 elements */
     hsize_t    dims3[3]={4,3,2};
@@ -6859,7 +6865,7 @@ void write_dset_in(hid_t loc_id,
                 if (make_diffs)
                 {
                     buf33[i][j][k].a=0;
-                    buf33[i][j][k].b=0;
+                    buf33[i][j][k].b=0.0F;
                 }
                 else {
                     buf33[i][j][k].a=n++;
@@ -6968,7 +6974,7 @@ void write_dset_in(hid_t loc_id,
             for (k = 0; k < 2; k++) {
                 if (make_diffs) {
                     buf73[i][j][k]=0;
-                    buf83[i][j][k]=0;
+                    buf83[i][j][k]=0.0F;
                 }
                 else {
                     buf73[i][j][k]=n++;
diff --git a/tools/h5dump/h5dumpgentest.c b/tools/h5dump/h5dumpgentest.c
index 36c9642..c04afe9 100644
--- a/tools/h5dump/h5dumpgentest.c
+++ b/tools/h5dump/h5dumpgentest.c
@@ -429,7 +429,7 @@ gent_dataset(void)
 
     for(i = 0; i < 30; i++)
         for(j = 0; j < 20; j++)
-            dset2[i][j] = 0.0001 * j + i;
+            dset2[i][j] = 0.0001F * j + i;
 
     H5Dwrite(dataset, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, dset2);
 
@@ -524,7 +524,7 @@ gent_attribute(void)
     space = H5Screate_simple(1, dims, NULL);
     attr = H5Acreate2(root, "attr3", H5T_IEEE_F64BE, space, H5P_DEFAULT, H5P_DEFAULT);
 
-    for(i = 0; i < 10; i++) d[i] = 0.1 * i;
+    for(i = 0; i < 10; i++) d[i] = 0.1F * i;
 
     H5Awrite(attr, H5T_NATIVE_DOUBLE, d);
     H5Sclose(space);
@@ -952,16 +952,16 @@ static void gent_compound_dt(void) {       /* test compound data type */
     for(i = 0; i < (int)sdim; i++) {
         dset1[i].a = i;
         dset1[i].b = (float)(i*i);
-        dset1[i].c = (float)(1./(i+1));
+        dset1[i].c = (float)(1.0F/(i+1));
 
         dset2[i].a = i;
-        dset2[i].b = (float)(i+ i*0.1);
+        dset2[i].b = (float)(i+ i*0.1F);
 
         dset4[i].a = i;
         dset4[i].b = (float)(i+3);
 
         dset5[i].a = i;
-        dset5[i].b = (float)(i*0.1);
+        dset5[i].b = (float)(i*0.1F);
     }
 
 
@@ -1137,16 +1137,16 @@ static void gent_compound_dt2(void) {       /* test compound data type */
     for(i = 0; i < (int)sdim; i++) {
         dset1[i].a = i;
         dset1[i].b = (float)(i*i);
-        dset1[i].c = (float)(1./(i+1));
+        dset1[i].c = (float)(1.0F/(i+1));
 
         dset2[i].a = i;
-        dset2[i].b = (float)(i+ i*0.1);
+        dset2[i].b = (float)(i+ i*0.1F);
 
         dset4[i].a = i;
-        dset4[i].b = (float)(i*1.0);
+        dset4[i].b = (float)(i*1.0F);
 
         dset5[i].a = i;
-        dset5[i].b = (float)(i*1.0);
+        dset5[i].b = (float)(i*1.0F);
     }
 
     fid = H5Fcreate(FILE9, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
@@ -1386,7 +1386,7 @@ static void gent_all(void)
     space = H5Screate_simple(1, dims, NULL);
     dataset = H5Dcreate2(group, "dset2.1", H5T_IEEE_F32BE, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
     for(i = 0; i < 10; i++)
-        dset2_1[i] = (float)(i * 0.1 + 1);
+        dset2_1[i] = (float)(i * 0.1F + 1);
     H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, dset2_1);
     H5Sclose(space);
     H5Dclose(dataset);
@@ -1397,7 +1397,7 @@ static void gent_all(void)
     dataset = H5Dcreate2(group, "dset2.2", H5T_IEEE_F32BE, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
     for(i = 0; i < 3; i++)
         for(j = 0; j < 5; j++)
-            dset2_2[i][j] = (float)((i + 1) * j * 0.1);
+            dset2_2[i][j] = (float)((i + 1) * j * 0.1F);
     H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, dset2_2);
     H5Sclose(space);
     H5Dclose(dataset);
@@ -1565,7 +1565,7 @@ gent_many(void)
     space2 = H5Screate_simple(1, dims, NULL);
     attr = H5Acreate2(dataset, "attr3", H5T_IEEE_F64BE, space2, H5P_DEFAULT, H5P_DEFAULT);
     for(i = 0; i < 10; i++)
-        d[i] = 0.1 * i;
+        d[i] = 0.1F * i;
     H5Awrite(attr, H5T_NATIVE_DOUBLE, d);
     H5Sclose(space2);
     H5Aclose(attr);
@@ -2378,10 +2378,10 @@ static void gent_nestcomp(void)
     for(i = 0; i< 10; i++) {
         s1[i].a = i;
         s1[i].b = (float)(i*i);
-        s1[i].c = 1./(i+1);
+        s1[i].c = 1.0F/(i+1);
         s1[i].d.a = 65 + i;
-        s1[i].d.b[0] = -100.;
-        s1[i].d.b[1] =  100.;
+        s1[i].d.b[0] = -100.0F;
+        s1[i].d.b[1] =  100.0F;
     }
 
     /*
@@ -2582,7 +2582,7 @@ static void gent_vldatatypes(void)
         wdata[i].len = i + 1;
 
         for(j = 0; j < i + 1; j++)
-            ((float *)wdata[i].p)[j] = (float)(i * 10 + ((float)j) / 10.0);
+            ((float *)wdata[i].p)[j] = (float)(i * 10 + ((float)j) / 10.0F);
     }
 
     /* write out the floats in little-endian format */
@@ -2716,7 +2716,7 @@ static void gent_vldatatypes3(void)
     /* Allocate and initialize VL data to write */
     for(i=0; i<SPACE1_DIM1; i++) {
         wdata[i].i=i*10;
-        wdata[i].f=(float)((i*20)/3.0);
+        wdata[i].f=(float)((i*20)/3.0F);
         wdata[i].v.p=HDmalloc((i+1)*sizeof(unsigned int));
         wdata[i].v.len=i+1;
         for(j=0; j<(i+1); j++)
@@ -2788,7 +2788,7 @@ static void gent_vldatatypes4(void)
         wdata[i].len=i+1;
         for(j=0; j<(i+1); j++) {
             ((s1 *)wdata[i].p)[j].i=i*10+j;
-            ((s1 *)wdata[i].p)[j].f=(float)((i*20+j)/3.0);
+            ((s1 *)wdata[i].p)[j].f=(float)((i*20+j)/3.0F);
         } /* end for */
     } /* end for */
 
@@ -3159,7 +3159,7 @@ static void gent_array4(void)
     for(i=0; i<SPACE1_DIM1; i++)
         for(j=0; j<ARRAY1_DIM1; j++) {
             wdata[i][j].i=i*10+j;
-            wdata[i][j].f=(float)(i*2.5+j);
+            wdata[i][j].f=(float)(i*2.5F+j);
         } /* end for */
 
     /* Create file */
@@ -3227,7 +3227,7 @@ static void gent_array5(void)
         for(j=0; j<ARRAY1_DIM1; j++) {
             wdata[i][j].i=i*10+j;
             for(k=0; k<ARRAY1_DIM1; k++)
-                wdata[i][j].f[k]=(float)(i*10+j*2.5+k);
+                wdata[i][j].f[k]=(float)(i*10+j*2.5F+k);
         } /* end for */
 
     /* Create file */
@@ -4933,10 +4933,10 @@ static void gent_compound_complex(void)
             }
         }
 
-        Array1[m].e = (float)( m * .96 );
+        Array1[m].e = (float)( m * 0.96F );
 
         for(n = 0; n < F41_ARRAY_DIMf; n++) {
-            Array1[m].f[n] = ( m * 1024.9637 );
+            Array1[m].f[n] = ( m * 1024.9637F );
         }
 
         Array1[m].g = 'm';
@@ -6873,7 +6873,7 @@ gent_fpformat(void)
 {
     hid_t    fid, sid, did;
     hsize_t  dims[1]  = {6};
-    double   dbuf[6]  = {-0.1234567, 0.1234567, 0, 0, 0, 0};
+    double   dbuf[6]  = {-0.1234567f, 0.1234567f, 0, 0, 0, 0};
     float    fbuf[6]  = {-0.1234567f, 0.1234567f, 0, 0, 0, 0};
 
     fid = H5Fcreate(FILE60, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
@@ -7193,7 +7193,7 @@ gent_packedbits(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++)
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
 
     H5Dwrite(dataset, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, dsetdbl);
 
@@ -7383,7 +7383,7 @@ gent_attr_intsize(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++)
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
 
     H5Awrite(attr, H5T_NATIVE_DOUBLE, dsetdbl);
 
@@ -7591,7 +7591,7 @@ static void gent_compound_intsizes(void) {
 
         for(n = 0; n < dims[0]; n++)
             for(o = 0; o < dims[1]; o++)
-                Array1[m].dsetdbl[n][o] = 0.0001 * o + n;
+                Array1[m].dsetdbl[n][o] = 0.0001F * o + n;
     }
 
     /* Create the array data type for the 8 bits signed int array             */
@@ -7866,7 +7866,7 @@ static void gent_compound_attr_intsizes(void) {
 
         for(n = 0; n < dims[0]; n++)
             for(o = 0; o < dims[1]; o++)
-                Array1[m].dsetdbl[n][o] = 0.0001 * o + n;
+                Array1[m].dsetdbl[n][o] = 0.0001F * o + n;
     }
 
     /* Create the array data type for the 8 bits signed int array             */
@@ -8034,17 +8034,17 @@ static void gent_nested_compound_dt(void) {       /* test nested data type */
         dset1[i].b = (float)(i*i);
 
         dset2[i].a = i;
-        dset2[i].b = (float)(i+i*0.1);
+        dset2[i].b = (float)(i+i*0.1F);
         dset2[i].c = GREEN;
 
         for(j = 0; j < 5; j++) {
             dset3[i].a[j] = i*j;
             for(k = 0; k < 6; k++) {
-                dset3[i].b[j][k] = (float)(i*j*k*1.0);
+                dset3[i].b[j][k] = (float)(i*j*k*1.0F);
             }
         }
         dset3[i].c.a = i;
-        dset3[i].c.b = (float)(i*1.0);
+        dset3[i].c.b = (float)(i*1.0F);
     }
 
     fid = H5Fcreate(FILE72, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
@@ -8332,7 +8332,7 @@ gent_intscalars(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++)
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
 
     H5Dwrite(dataset, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, dsetdbl);
 
@@ -8531,7 +8531,7 @@ gent_attr_intscalars(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++)
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
 
     H5Awrite(attr, tid, dsetdbl);
 
@@ -8717,7 +8717,7 @@ static void gent_compound_int_array(void) {
         dims[0] = F76_DIM8;
 
         for(n = 0; n < dims[0]; n++)
-           	Cmpd1[m].dsetdbl[n] = 0.0001 + n;
+           	Cmpd1[m].dsetdbl[n] = 0.0001F + n;
     }
 
     /* Create the array data type for the 8 bits signed int array             */
@@ -8948,8 +8948,8 @@ static void gent_compound_ints(void) {
 		val64bits <<= 1;
 
         /* Double Dummy set for failure tests */
-       	Cmpd1[m].dsetdbl = 0.0001 + m;
-       	Cmpd2[m].dsetdbl = 0.0001 + m;
+       	Cmpd1[m].dsetdbl = 0.0001F + m;
+       	Cmpd2[m].dsetdbl = 0.0001F + m;
     }
 
     /* Create the dataspace                                           */
@@ -9286,7 +9286,7 @@ gent_intattrscalars(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++)
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
 
     H5Dwrite(dataset, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, dsetdbl);
     /* Attribute of double */
@@ -9551,7 +9551,7 @@ gent_intsattrs(void)
 
     for(i = 0; i < dims[0]; i++)
         for(j = 0; j < dims[1]; j++) {
-            dsetdbl[i][j] = 0.0001 * j + i;
+            dsetdbl[i][j] = 0.0001F * j + i;
             asetdbl[i*dims[1]+j] = dsetdbl[i][j];
         }
 
diff --git a/tools/h5import/h5importtest.c b/tools/h5import/h5importtest.c
index 49f977c..ac839fb 100644
--- a/tools/h5import/h5importtest.c
+++ b/tools/h5import/h5importtest.c
@@ -40,13 +40,13 @@ main(void)
     FILE      *sp;
 
     float     row4[3], col4[4], pln4[5];
-    float     rowo4 = (float)11.0e0, colo4 = (float)21.0e0, plno4 = (float)51.0e0;
-    float     rowi4 = (float)1.0e0, coli4 = (float)2.0e0, plni4 = (float)5.0e0;
+    float     rowo4 = 11.0F, colo4 = 21.0F, plno4 = 51.0F;
+    float     rowi4 = 1.0F, coli4 = 2.0F, plni4 = 5.0F;
 
     int       b32i3[5][3][4];
     int       row4i[3], col4i[4], pln4i[5];
-    int       rowo4i = (int)11 , colo4i = (int)21 , plno4i = (int)51 ;
-    int       rowi4i = (int)1 , coli4i = (int)2 , plni4i = (int)5 ;
+    int       rowo4i = 11 , colo4i = 21 , plno4i = 51 ;
+    int       rowi4i = 1 , coli4i = 2 , plni4i = 5 ;
 
 #ifdef H5_SIZEOF_LONG_LONG
     long long row4i64[3], col4i64[4], pln4i64[5];
@@ -66,8 +66,8 @@ main(void)
 
     double    b64r3[5][3][4];
     double    row8[3], col8[4], pln8[5];
-    double    rowo8 = 11.0e0, colo8 = 21.0e0, plno8 = 51.0e0;
-    double    rowi8 = 1.0e0, coli8 = 2.0e0, plni8 = 5.0e0;
+    double    rowo8 = 11.0F, colo8 = 21.0F, plno8 = 51.0F;
+    double    rowi8 = 1.0F, coli8 = 2.0F, plni8 = 5.0F;
 
 
     /*
diff --git a/tools/h5jam/h5jamgentest.c b/tools/h5jam/h5jamgentest.c
index 9636597..5a93c13 100644
--- a/tools/h5jam/h5jamgentest.c
+++ b/tools/h5jam/h5jamgentest.c
@@ -254,7 +254,7 @@ gent_ub(const char * filename, size_t ub_size, size_t ub_fill)
   space = H5Screate_simple(1, dims, NULL);
   dataset = H5Dcreate2(group, "dset2.1", H5T_IEEE_F32BE, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
   for (i = 0; i < 10; i++)
-       dset2_1[i] = (float)(i*0.1+1);
+       dset2_1[i] = (float)(i*0.1F+1);
   H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, dset2_1);
   H5Sclose(space);
   H5Dclose(dataset);
@@ -265,7 +265,7 @@ gent_ub(const char * filename, size_t ub_size, size_t ub_fill)
   dataset = H5Dcreate2(group, "dset2.2", H5T_IEEE_F32BE, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
   for (i = 0; i < 3; i++)
        for (j = 0; j < 5; j++)
-            dset2_2[i][j] = (float)((i+1)*j*0.1);
+            dset2_2[i][j] = (float)((i+1)*j*0.1F);
   H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, dset2_2);
   H5Sclose(space);
   H5Dclose(dataset);
diff --git a/tools/lib/io_timer.c b/tools/lib/io_timer.c
index 78e7fe9..b8d44de 100644
--- a/tools/lib/io_timer.c
+++ b/tools/lib/io_timer.c
@@ -40,7 +40,7 @@
  * The number to divide the tv_usec field with to get a nice decimal to add to
  * the number of seconds.
  */
-#define MICROSECOND     1000000.0
+#define MICROSECOND     1000000.0F
 
 /* global variables */
 io_time_t   *timer_g;            /* timer: global for stub functions     */
diff --git a/tools/perform/chunk.c b/tools/perform/chunk.c
index a3c11c1..6825a4c 100644
--- a/tools/perform/chunk.c
+++ b/tools/perform/chunk.c
@@ -57,20 +57,20 @@
 #define RM_CACHE_STRT	25
 #define RM_CACHE_END	25
 #define RM_CACHE_DELT	5
-#define RM_START	0.50
-#define RM_END	        5.00
-#define RM_DELTA	0.50
-#define RM_W0		0.0
+#define RM_START	0.50F
+#define RM_END	        5.00F
+#define RM_DELTA	0.50F
+#define RM_W0		0.0F
 #define RM_NRDCC	521
 
 /* Diagonal test */
 #define DIAG_CACHE_STRT	25
 #define DIAG_CACHE_END	25
 #define DIAG_CACHE_DELT	5
-#define DIAG_START	0.50
-#define DIAG_END	5.00
-#define DIAG_DELTA	0.50
-/* #define DIAG_W0		0.65 */
+#define DIAG_START	0.50F
+#define DIAG_END	5.00F
+#define DIAG_DELTA	0.50F
+/* #define DIAG_W0		0.65F */
 /* #define DIAG_NRDCC		521 */
 
 static size_t	nio_g;
diff --git a/tools/perform/iopipe.c b/tools/perform/iopipe.c
index 85063fa..a04ef82 100644
--- a/tools/perform/iopipe.c
+++ b/tools/perform/iopipe.c
@@ -81,25 +81,25 @@ print_stats (const char *prefix,
     double  u_time, s_time;
 
     u_time = ((double)(r_stop->ru_utime.tv_sec)+
-        (double)(r_stop->ru_utime.tv_usec)/1000000.0) -
+        (double)(r_stop->ru_utime.tv_usec)/1000000.0F) -
        ((double)(r_start->ru_utime.tv_sec)+
-        (double)(r_start->ru_utime.tv_usec)/1000000.0);
+        (double)(r_start->ru_utime.tv_usec)/1000000.0F);
 
     s_time = ((double)(r_stop->ru_stime.tv_sec)+
-        (double)(r_stop->ru_stime.tv_usec)/1000000.0) -
+        (double)(r_stop->ru_stime.tv_usec)/1000000.0F) -
        ((double)(r_start->ru_stime.tv_sec)+
-        (double)(r_start->ru_stime.tv_usec)/1000000.0);
+        (double)(r_start->ru_stime.tv_usec)/1000000.0F);
 #endif
 #ifndef H5_HAVE_SYS_TIMEB
     e_time = ((double)(t_stop->tv_sec)+
-        (double)(t_stop->tv_usec)/1000000.0) -
+        (double)(t_stop->tv_usec)/1000000.0F) -
        ((double)(t_start->tv_sec)+
-        (double)(t_start->tv_usec)/1000000.0);
+        (double)(t_start->tv_usec)/1000000.0F);
 #else
     e_time = ((double)(t_stop->tv_sec)+
-        (double)(t_stop->tv_usec)/1000.0) -
+        (double)(t_stop->tv_usec)/1000.0F) -
        ((double)(t_start->tv_sec)+
-        (double)(t_start->tv_usec)/1000.0);
+        (double)(t_start->tv_usec)/1000.0F);
 #endif
     bw = (double)nbytes / e_time;
 
@@ -191,7 +191,7 @@ main (void)
      * 1998-11-06 ptl
      */
     printf ("I/O request size is %1.1fMB\n",
-      (double)(hssize_t)(size[0]*size[1])/1024.0*1024);
+      (double)(hssize_t)(size[0]*size[1])/1024.0F*1024);
 
     /* Open the files */
     file = H5Fcreate (HDF5_FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
diff --git a/tools/perform/overhead.c b/tools/perform/overhead.c
index 9341e64..046668f 100644
--- a/tools/perform/overhead.c
+++ b/tools/perform/overhead.c
@@ -209,7 +209,7 @@ test(fill_t fill_style, const double splits[],
     if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0) goto error;
     if(!use_rdcc) {
         if(H5Pget_cache(fapl, &mdc_nelmts, NULL, NULL, NULL) < 0) goto error;
-        if(H5Pset_cache(fapl, mdc_nelmts, 0, 0, 0.0) < 0) goto error;
+        if(H5Pset_cache(fapl, mdc_nelmts, 0, 0, 0.0F) < 0) goto error;
     }
     if((file = H5Fcreate(FILE_NAME_1, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0) goto error;
     if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0) goto error;
diff --git a/tools/perform/sio_perf.c b/tools/perform/sio_perf.c
index 1828d6f..7d75a2d 100644
--- a/tools/perform/sio_perf.c
+++ b/tools/perform/sio_perf.c
@@ -68,7 +68,7 @@
 #define SIO_HDF5            0x4
 
 /* report 0.0 in case t is zero too */
-#define MB_PER_SEC(bytes,t) (((t)==0.0) ? 0.0 : ((((double)bytes) / ONE_MB) / (t)))
+#define MB_PER_SEC(bytes,t) (((t)==0.0F) ? 0.0F : ((((double)bytes) / ONE_MB) / (t)))
 
 #ifndef TRUE
 #define TRUE    1
@@ -451,14 +451,14 @@ run_test(iotype iot, parameters parms, struct options *opts)
     minmax         *read_mm_table=NULL;
     minmax         *read_gross_mm_table=NULL;
     minmax         *read_raw_mm_table=NULL;
-    minmax          write_sys_mm = {0.0, 0.0, 0.0, 0};
-    minmax          write_mm = {0.0, 0.0, 0.0, 0};
-    minmax          write_gross_mm = {0.0, 0.0, 0.0, 0};
-    minmax          write_raw_mm = {0.0, 0.0, 0.0, 0};
-    minmax          read_sys_mm = {0.0, 0.0, 0.0, 0};
-    minmax          read_mm = {0.0, 0.0, 0.0, 0};
-    minmax          read_gross_mm = {0.0, 0.0, 0.0, 0};
-    minmax          read_raw_mm = {0.0, 0.0, 0.0, 0};
+    minmax          write_sys_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          write_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          write_gross_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          write_raw_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          read_sys_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          read_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          read_gross_mm = {0.0F, 0.0F, 0.0F, 0};
+    minmax          read_raw_mm = {0.0F, 0.0F, 0.0F, 0};
 
     raw_size = (off_t)parms.num_bytes;
     parms.io_type = iot;
@@ -717,7 +717,7 @@ accumulate_minmax_stuff(minmax *mm, int count)
     int i;
     minmax total_mm;
 
-    total_mm.sum = 0.0;
+    total_mm.sum = 0.0F;
     total_mm.max = -DBL_MAX;
     total_mm.min = DBL_MAX;
     total_mm.num = count;
diff --git a/tools/perform/zip_perf.c b/tools/perform/zip_perf.c
index edd5b0f..f73ba40 100644
--- a/tools/perform/zip_perf.c
+++ b/tools/perform/zip_perf.c
@@ -43,10 +43,10 @@
 #define ONE_MB              (ONE_KB * ONE_KB)
 #define ONE_GB              (ONE_MB * ONE_KB)
 
-#define MICROSECOND         1000000.0
+#define MICROSECOND         1000000.0F
 
 /* report 0.0 in case t is zero too */
-#define MB_PER_SEC(bytes,t) ((fabs(t)<0.0000000001) ? 0.0 : ((((double)bytes) / ONE_MB) / (t)))
+#define MB_PER_SEC(bytes,t) ((fabs(t)<0.0000000001F) ? 0.0F : ((((double)bytes) / ONE_MB) / (t)))
 
 #ifndef TRUE
 #define TRUE    1
@@ -182,7 +182,7 @@ write_file(Bytef *source, uLongf sourceLen)
 
     /* destination buffer needs to be at least 0.1% larger than sourceLen
      * plus 12 bytes */
-    destLen = (uLongf)((double)sourceLen + ((double)sourceLen * 0.1)) + 12;
+    destLen = (uLongf)((double)sourceLen + ((double)sourceLen * 0.1F)) + 12;
     dest = (Bytef *)HDmalloc(destLen);
 
     if (!dest)
@@ -464,7 +464,7 @@ do_write_test(unsigned long file_size, unsigned long min_buf_size,
             error("out of memory");
         }
 
-        compression_time = 0.0;
+        compression_time = 0.0F;
 
         if (random_test)
             fill_with_random_data(src, src_len);