[svn-r569] Changes since 19980731

----------------------

./bin/release
	Added ./Makefile to the distribution again -- it got lost in
	the changes last week although it isn't all that important a
	file since it gets clobbered by configure anyway.

./bin/trace
./doc/html/Filters.html
./doc/html/H5.format.html
./doc/html/H5.user.html
./src/H5.c
./src/H5D.c
./src/H5Dprivate.h
./src/H5E.c
./src/H5Epublic.h
./src/H5Farray.c
./src/H5Fistore.c
./src/H5Fprivate.h
./src/H5O.c
./src/H5Ocomp.c
./src/H5Oprivate.h
./src/H5P.c
./src/H5Ppublic.h
./src/H5Sall.c
./src/H5Shyper.c
./src/H5Spoint.c
./src/H5Sprivate.h
./src/H5Ssimp.c
./src/H5Z.c
./src/H5Zprivate.h
./src/H5Zpublic.h
./src/hdf5.h
./test/dsets.c
./tools/h5ls.c
	Added the data filter pipeline, a generalization of the
	compression stuff which allows things like checksums,
	encryption, compression, performance monitoring, etc.  See
	./doc/html/Filters.html for details -- it replaces the
	Compression.html doc.

./src/H5T.c
	Cleaned up debugging output.

./config/linux
	Added checks for egcs and pgcc and changed optimization flags
	for the compilers.

./src/H5G.c
./tools/h5dump.c
	Fixed compiler warnings in these files and others.

./configure.in
./src/H5private.h
./test/mtime.c
	Added a check for difftime() and defined HDdifftime() to do
	something else on systems that don't have difftime().

2 files changed, 31 insertions, 5 deletions

diff --git a/tools/h5ls.c b/tools/h5ls.c
index c79c8d1..52ac9cb 100644
--- a/tools/h5ls.c
+++ b/tools/h5ls.c
@@ -175,7 +175,7 @@ list (hid_t group, const char *name, void __unused__ *op_data)
     hid_t	obj;
     hid_t	(*func)(void*);
     void	*edata;
-    int		i;
+    int		i, nf;
     char	buf[512], comment[50];
     H5G_stat_t	statbuf;
     struct tm	*tm;
@@ -204,6 +204,30 @@ list (hid_t group, const char *name, void __unused__ *op_data)
 	printf ("}\n");
 	H5Dclose (space);
 	H5Aiterate (obj, NULL, list_attr, NULL);
+
+	/* Print additional information about datasets */
+	if (verbose_g>0) {
+	    hid_t dcpl = H5Dget_create_plist(obj);
+	    if ((nf = H5Pget_nfilters(dcpl))>0) {
+		for (i=0; i<nf; i++) {
+		    unsigned filt_flags;
+		    H5Z_filter_t filt_id;
+		    unsigned cd_values[20];
+		    size_t cd_nelmts = NELMTS(cd_values);
+		    size_t cd_num;
+		    filt_id = H5Pget_filter(dcpl, i, &filt_flags, &cd_nelmts,
+					    cd_values);
+		    sprintf(comment, "Filter-%d:", i);
+		    printf("    %-10s %u %s {", comment, (unsigned)filt_id,
+			   filt_flags & H5Z_FLAG_OPTIONAL?"OPT":"");
+		    for (cd_num=0; cd_num<cd_nelmts; cd_num++) {
+			printf("%s%u", cd_num?", ":"", cd_values[cd_num]);
+		    }
+		    printf("}\n");
+		}
+	    }
+	    H5Pclose(dcpl);
+	}
 	H5Dclose (obj);
     } else if ((obj=H5Gopen (group, name))>=0) {
 	printf ("Group\n");
@@ -240,7 +264,7 @@ list (hid_t group, const char *name, void __unused__ *op_data)
 	if (comment[0]) printf("    %-10s %s\n", "Comment:", comment);
     }
     
-    if (dump_g && (obj=H5Dopen(group, name))) {
+    if (dump_g && (obj=H5Dopen(group, name))>=0) {
 	/* Turn on error reporting before dumping the data */
 	H5Eset_auto(func, edata);
 	dump_dataset_values(obj);
diff --git a/tools/h5tools.c b/tools/h5tools.c
index fae2251..0472074 100644
--- a/tools/h5tools.c
+++ b/tools/h5tools.c
@@ -293,8 +293,10 @@ h5dump_simple(FILE *stream, const h5dump_t *info, hid_t dset, hid_t p_type)
 			    hs_size, NULL);
 	H5Sselect_hyperslab(sm_space, H5S_SELECT_SET, zero, NULL,
 			    &hs_nelmts, NULL);
-	H5Dread(dset, p_type, sm_space, f_space, H5P_DEFAULT, sm_buf);
-
+	if (H5Dread(dset, p_type, sm_space, f_space, H5P_DEFAULT, sm_buf)<0) {
+	    return -1;
+	}
+	
 	/* Print the data */
 	for (i=0; i<hs_nelmts; i++) {
 	    /* Render the element */
@@ -375,7 +377,7 @@ h5dump_fixtype(hid_t f_type)
     hid_t	m_type=-1, f_memb;
     hid_t	*memb=NULL;
     char	**name=NULL;
-    int		nmembs, i, j, *ndims=NULL;
+    int		nmembs=0, i, j, *ndims=NULL;
     size_t	size, offset, *dims=NULL, nelmts;
 
     size = H5Tget_size(f_type);