[svn-r6925] Purpose:

bug fix

Description:
the signed / unsigned comparison was not properly handled.
the fixtype function sets the sign for the memory type the same sign as found on disk
and the array_diff function only handled signed cases

Solution:
addded for each INTEGER size type an OR condition with the unsigned version
if the datatypes have different signs , comparison is NOT supported


Platforms tested:

Windows 2000 (octopus)
Linux 2.4 (rockaway)
SunOS 5.7 (arabica)
IRIX 6.5 (modi4)


Misc. update:

3 files changed, 161 insertions, 75 deletions

diff --git a/tools/h5diff/h5diff.c b/tools/h5diff/h5diff.c
index d399871..6867b2e 100644
--- a/tools/h5diff/h5diff.c
+++ b/tools/h5diff/h5diff.c
@@ -51,44 +51,46 @@ typedef struct options_t
  *-------------------------------------------------------------------------
  */
 
-int diff_dataset( hid_t file1_id, hid_t file2_id, const char *obj1_name, 
-                  const char *obj2_name, options_t options );
-int diff( hid_t file1_id, const char *obj1_name, hid_t file2_id, const char *obj2_name, 
-           options_t options, int type );
-int compare( hid_t file1_id, const char *file1_name, const char *obj1_name, 
-              int nobjects1, info_t *info1,
-              hid_t file2_id, const char *file2_name, const char *obj2_name, 
-              int nobjects2, info_t *info2,
-              options_t options );
-int match( hid_t file1_id, const char *file1_name, int nobjects1, info_t *info1,
-            hid_t file2_id, const char *file2_name, int nobjects2, info_t *info2,
-            options_t options );
-int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims, 
-                options_t options, const char *obj1, const char *obj2,
-                hid_t m_type );
+static int diff_dataset( hid_t file1_id, hid_t file2_id, const char *obj1_name, 
+ const char *obj2_name, options_t options );
+static int diff( hid_t file1_id, const char *obj1_name, hid_t file2_id, const char *obj2_name, 
+ options_t options, int type );
+static int compare( hid_t file1_id, const char *file1_name, const char *obj1_name, 
+ int nobjects1, info_t *info1,
+ hid_t file2_id, const char *file2_name, const char *obj2_name, 
+ int nobjects2, info_t *info2,
+ options_t options );
+static int match( hid_t file1_id, int nobjects1, info_t *info1,
+ hid_t file2_id, int nobjects2, info_t *info2, options_t options );
+static int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims, 
+ options_t options, const char *obj1, const char *obj2,
+ hid_t m_type );
 
 /*-------------------------------------------------------------------------
  * utility functions
  *-------------------------------------------------------------------------
  */
 
-void list( const char *filename, int nobjects, info_t *info );
-void print_pos( int *ph, int p, unsigned int curr_pos, int *acc, 
-                int *pos, int rank, const char *obj1, const char *obj2 );
-hid_t fixtype( hid_t f_type );
-void print_datatype(hid_t type);
-int check_n_input( const char* );
-int check_f_input( const char* );
-int get_index( const char *obj, int nobjects, info_t *info );
-int compare_object( char *obj1, char *obj2 );
-void usage(void);
-const char* h5diff_basename(const char *name);
-const char* get_type(int type);
-const char* get_class(H5T_class_t tclass);
-void print_dims( int r, hsize_t *d );
-void print_sizes( const char *obj1, const char *obj2,
-                  hid_t f_type1, hid_t f_type2,
-                  hid_t m_type1, hid_t m_type2 );
+static void list( const char *filename, int nobjects, info_t *info );
+static hid_t fixtype( hid_t f_type );
+static void print_datatype(hid_t type);
+static int check_n_input( const char* );
+static int check_f_input( const char* );
+static int get_index( const char *obj, int nobjects, info_t *info );
+static int compare_object( char *obj1, char *obj2 );
+static void usage(void);
+static const char* h5diff_basename(const char *name);
+static const char* get_type(int type);
+static const char* get_class(H5T_class_t tclass);
+static const char* get_sign(H5T_sign_t sign);
+static void print_dims( int r, hsize_t *d );
+static void print_pos( int *ph, int p, unsigned int curr_pos, int *acc, 
+ int *pos, int rank, const char *obj1, const char *obj2 );
+#if defined (H5DIFF_DEBUG)
+static void print_sizes( const char *obj1, const char *obj2,
+ hid_t f_type1, hid_t f_type2,
+ hid_t m_type1, hid_t m_type2 );
+#endif
 
 
 /*-------------------------------------------------------------------------
@@ -104,6 +106,7 @@ void print_sizes( const char *obj1, const char *obj2,
  *
  *-------------------------------------------------------------------------
  */
+static 
 void usage(void)
 {
  printf("Usage: h5diff file1 file2 [OPTIONS] [obj1[obj2]] \n");
@@ -371,8 +374,8 @@ int main(int argc, const char *argv[])
 
  else 
  {
-  nfound=match(file1_id,file1_name,nobjects1,info1,
-               file2_id,file2_name,nobjects2,info2,options);
+  nfound=match(file1_id,nobjects1,info1,
+               file2_id,nobjects2,info2,options);
  }
  
  /* close */
@@ -405,7 +408,7 @@ int main(int argc, const char *argv[])
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 int check_n_input( const char *str )
 {
  unsigned i;
@@ -443,7 +446,7 @@ int check_n_input( const char *str )
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 int check_f_input( const char *str )
 {
  unsigned i;
@@ -480,7 +483,7 @@ int check_f_input( const char *str )
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 void list( const char *filename, int nobjects, info_t *info )
 {
  int i;
@@ -528,7 +531,7 @@ void list( const char *filename, int nobjects, info_t *info )
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 int compare_object( char *obj1, char *obj2 )
 {
  int cmp;
@@ -557,10 +560,9 @@ int compare_object( char *obj1, char *obj2 )
  *
  *-------------------------------------------------------------------------
  */
-
-int match( hid_t file1_id, const char *file1_name, int nobjects1, info_t *info1,
-            hid_t file2_id, const char *file2_name, int nobjects2, info_t *info2,
-            options_t options )
+static 
+int match( hid_t file1_id, int nobjects1, info_t *info1,
+            hid_t file2_id, int nobjects2, info_t *info2, options_t options )
 {
  int  cmp;
  int  more_names_exist = (nobjects1>0 && nobjects2>0) ? 1 : 0;
@@ -724,7 +726,7 @@ int get_index( const char *obj, int nobjects, info_t *info )
  *-------------------------------------------------------------------------
  */
 
-
+static 
 int compare( hid_t file1_id, const char *file1_name, const char *obj1_name, 
               int nobjects1, info_t *info1,
               hid_t file2_id, const char *file2_name, const char *obj2_name, 
@@ -789,7 +791,7 @@ int compare( hid_t file1_id, const char *file1_name, const char *obj1_name,
  *-------------------------------------------------------------------------
  */
 
-
+static 
 int diff( hid_t file1_id, const char *obj1_name, hid_t file2_id, const char *obj2_name, 
            options_t options, int type )
 {
@@ -831,7 +833,7 @@ int diff( hid_t file1_id, const char *obj1_name, hid_t file2_id, const char *obj
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 int diff_dataset( hid_t file1_id, hid_t file2_id, const char *obj1_name, 
                   const char *obj2_name, options_t options )
 {
@@ -844,6 +846,7 @@ int diff_dataset( hid_t file1_id, hid_t file2_id, const char *obj1_name,
  hid_t   m_type1=-1, m_type2=-1; /* memory data type */
  size_t  f_size1, f_size2;       /* size of type in file */
  size_t  m_size1, m_size2;       /* size of type in memory */
+ H5T_sign_t sign1, sign2;        /* sign of type */
  int     rank1, rank2; 
  void    *buf1=NULL, *buf2=NULL;
  hsize_t tot_cnt1, tot_cnt2;
@@ -1090,6 +1093,21 @@ int diff_dataset( hid_t file1_id, hid_t file2_id, const char *obj1_name,
  print_sizes(obj1_name,obj2_name,f_type1,f_type2,m_type1,m_type2);
 #endif 
 
+/*-------------------------------------------------------------------------
+ * check for different signed/unsigned types
+ *-------------------------------------------------------------------------
+ */
+
+ sign1=H5Tget_sign(m_type1);
+ sign2=H5Tget_sign(m_type2);
+ if ( sign1 != sign2 )
+ {
+  printf("Comparison not supported\n");
+  printf("<%s> has sign %s\n", obj1_name, get_sign(sign1));
+  printf("<%s> has sign %s", obj2_name, get_sign(sign2));
+  goto out;
+ }
+
 
 /*-------------------------------------------------------------------------
  * "upgrade" the smaller memory size 
@@ -1191,7 +1209,7 @@ out:
  *
  *-------------------------------------------------------------------------
  */
- 
+static  
 int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims, 
                 options_t options, const char *obj1, const char *obj2,
                 hid_t m_type )
@@ -1247,7 +1265,7 @@ int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims
  *-------------------------------------------------------------------------
  */
   
-  if (H5Tequal(m_type, H5T_NATIVE_SCHAR)) 
+  if (H5Tequal(m_type, H5T_NATIVE_SCHAR)||H5Tequal(m_type, H5T_NATIVE_UCHAR)) 
   {
    assert(type_size==sizeof(char));
    for ( i = 0; i < tot_cnt; i++)
@@ -1330,7 +1348,7 @@ int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims
  *-------------------------------------------------------------------------
  */
   
-  else if (H5Tequal(m_type, H5T_NATIVE_SHORT)) 
+  else if (H5Tequal(m_type, H5T_NATIVE_SHORT)||H5Tequal(m_type, H5T_NATIVE_USHORT))
   {
    assert(type_size==sizeof(short));
    for ( i = 0; i < tot_cnt; i++)
@@ -1413,7 +1431,7 @@ int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims
  *-------------------------------------------------------------------------
  */
   
-  else if (H5Tequal(m_type, H5T_NATIVE_INT)) 
+  else if (H5Tequal(m_type, H5T_NATIVE_INT)||H5Tequal(m_type, H5T_NATIVE_UINT)) 
   {
    assert(type_size==sizeof(int));
    for ( i = 0; i < tot_cnt; i++)
@@ -1495,7 +1513,7 @@ int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims
  *-------------------------------------------------------------------------
  */
   
-  else if (H5Tequal(m_type, H5T_NATIVE_LONG)) 
+  else if (H5Tequal(m_type, H5T_NATIVE_LONG)||H5Tequal(m_type, H5T_NATIVE_ULONG)) 
   {
    assert(type_size==sizeof(long));
    for ( i = 0; i < tot_cnt; i++)
@@ -1771,6 +1789,7 @@ int array_diff( void *buf1, void *buf2, hsize_t tot_cnt, int rank, hsize_t *dims
  *
  *-------------------------------------------------------------------------
  */
+static 
 hid_t fixtype(hid_t f_type)
 {
  hid_t   m_type = -1;
@@ -1883,7 +1902,7 @@ hid_t fixtype(hid_t f_type)
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 void print_pos( int *ph, int p, unsigned int curr_pos, int *acc, 
                 int *pos, int rank, const char *obj1, const char *obj2 )
 {
@@ -1937,6 +1956,7 @@ void print_pos( int *ph, int p, unsigned int curr_pos, int *acc,
  *
  *-------------------------------------------------------------------------
  */
+static 
 void print_dims( int r, hsize_t *d )
 {
  int i;
@@ -1962,7 +1982,7 @@ void print_dims( int r, hsize_t *d )
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 void print_datatype(hid_t type)
 {
  switch (H5Tget_class(type)) 
@@ -2065,7 +2085,7 @@ void print_datatype(hid_t type)
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 const char*
 h5diff_basename(const char *name)
 {
@@ -2096,7 +2116,7 @@ h5diff_basename(const char *name)
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 const char*
 get_type(int type)
 {
@@ -2116,6 +2136,35 @@ get_type(int type)
 }
 
 /*-------------------------------------------------------------------------
+ * Function: get_sign
+ *
+ * Purpose: Returns the sign as a string
+ *
+ * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
+ *
+ * Date: May 9, 2003
+ *
+ * Comments: 
+ *
+ *-------------------------------------------------------------------------
+ */
+static 
+const char*
+get_sign(H5T_sign_t sign)
+{
+ switch (sign)
+ {
+ default:
+  return("H5T_SGN_ERROR");
+ case H5T_SGN_NONE:
+  return("H5T_SGN_NONE");
+ case H5T_SGN_2:
+  return("H5T_SGN_2");
+ } 
+}
+
+
+/*-------------------------------------------------------------------------
  * Function: get_class
  *
  * Purpose: Returns the class as a string
@@ -2128,7 +2177,7 @@ get_type(int type)
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 const char*
 get_class(H5T_class_t tclass)
 {
@@ -2169,7 +2218,7 @@ get_class(H5T_class_t tclass)
  *
  *-------------------------------------------------------------------------
  */
-
+static 
 void print_sizes( const char *obj1, const char *obj2,
                   hid_t f_type1, hid_t f_type2,
                   hid_t m_type1, hid_t m_type2 )      
diff --git a/tools/h5diff/h5difftst.c b/tools/h5diff/h5difftst.c
index 844d534..968365b 100644
--- a/tools/h5diff/h5difftst.c
+++ b/tools/h5diff/h5difftst.c
@@ -17,19 +17,27 @@
 
 #include "hdf5.h"
 
+#if !defined(H5_HAVE_ATTRIBUTE) || defined __cplusplus
+#   undef __attribute__
+#   define __attribute__(X) /*void*/
+#   define UNUSED /*void*/
+#else
+#   define UNUSED __attribute__((unused))
+#endif
+
 
 
 /* diff test*/
-int do_test_1(const char *file1, const char *file2);
-int do_test_2(const char *file1, const char *file2);
-int do_test_3(const char *file1, const char *file2);
-int do_test_4(const char *file1, const char *file2);
-int do_test_5(const char *file1, const char *file2);
-int write_dataset( hid_t loc_id, int rank, hsize_t *dims, const char *dset_name,
-                   hid_t type_id, void *buf );
+static int do_test_1(const char *file1, const char *file2);
+static int do_test_2(const char *file1, const char *file2);
+static int do_test_3(const char *file1, const char *file2);
+static int do_test_4(const char *file1, const char *file2);
+static int do_test_5(const char *file1, const char *file2);
+static int write_dataset( hid_t loc_id, int rank, hsize_t *dims, const char *dset_name,
+                          hid_t type_id, void *buf );
 
 
-int main(int argc, const char *argv[])
+int main(int UNUSED argc, const UNUSED char *argv[])
 {
  
  do_test_1("file1.h5","file2.h5");
@@ -56,6 +64,7 @@ int main(int argc, const char *argv[])
  *-------------------------------------------------------------------------
  */
 
+static 
 int write_dataset( hid_t loc_id, int rank, hsize_t *dims, const char *dset_name,
                    hid_t type_id, void *buf )
 {
@@ -317,14 +326,14 @@ int write_dataset( hid_t loc_id, int rank, hsize_t *dims, const char *dset_name,
 
  file1.h6 file2.h6
 
-/*
+*/
 
 
 /*-------------------------------------------------------------------------
  * Basic review tests
  *-------------------------------------------------------------------------
  */
-
+static 
 int do_test_1(const char *file1, const char *file2)
 {
 
@@ -374,8 +383,8 @@ int do_test_1(const char *file1, const char *file2)
  * Compare different types: H5G_DATASET, H5G_TYPE, H5G_GROUP, H5G_LINK
  *-------------------------------------------------------------------------
  */
-
-int do_test_2(const char *file1, const char *file2)
+static 
+int do_test_2(const char *file1, const char UNUSED *file2)
 {
 
  hid_t   file1_id; 
@@ -447,8 +456,8 @@ int do_test_2(const char *file1, const char *file2)
  * H5T_ENUM, H5T_VLEN, H5T_ARRAY
  *-------------------------------------------------------------------------
  */
-
-int do_test_3(const char *file1, const char *file2)
+static 
+int do_test_3(const char *file1, const char UNUSED *file2)
 {
 
  hid_t   file1_id; 
@@ -573,8 +582,8 @@ int do_test_3(const char *file1, const char *file2)
  * Dimension issues
  *-------------------------------------------------------------------------
  */
-
-int do_test_4(const char *file1, const char *file2)
+static 
+int do_test_4(const char *file1, const char UNUSED *file2)
 {
 
  hid_t   file1_id; 
@@ -637,8 +646,8 @@ int do_test_4(const char *file1, const char *file2)
  * Datasets datatypes 
  *-------------------------------------------------------------------------
  */
-
-int do_test_5(const char *file1, const char *file2)
+static 
+int do_test_5(const char *file1, const char UNUSED *file2)
 {
 
  hid_t   file1_id; 
@@ -657,7 +666,16 @@ int do_test_5(const char *file1, const char *file2)
  double  buf6a[3][2] = {{1,1},{1,1},{1,1}};
  double  buf6b[3][2] = {{1,1},{3,4},{5,6}};
 
-
+ /*unsigned/signed test
+   signed char -128 to 127 
+   unsigned char 0 to 255 
+  */
+ char          buf7a[3][2] = {{-1,-128},{-1,-1},{-1,-1}};
+ unsigned char buf7b[3][2] = {{1,128},{1,1},{1,1}};
+ unsigned char buf8a[3][2] = {{1,1},{1,1},{1,1}};
+ unsigned char buf8b[3][2] = {{1,1},{3,4},{5,6}};
+ 
+ 
 /*-------------------------------------------------------------------------
  * Create a file
  *-------------------------------------------------------------------------
@@ -716,6 +734,22 @@ int do_test_5(const char *file1, const char *file2)
  write_dataset(file1_id,2,dims,"dset6b",H5T_NATIVE_DOUBLE,buf6b);
 
 /*-------------------------------------------------------------------------
+ * H5T_NATIVE_CHAR and H5T_NATIVE_UCHAR
+ *-------------------------------------------------------------------------
+ */
+
+ write_dataset(file1_id,2,dims,"dset7a",H5T_NATIVE_CHAR,buf7a);
+ write_dataset(file1_id,2,dims,"dset7b",H5T_NATIVE_UCHAR,buf7b);
+
+/*-------------------------------------------------------------------------
+ * H5T_NATIVE_UCHAR
+ *-------------------------------------------------------------------------
+ */
+
+ write_dataset(file1_id,2,dims,"dset8a",H5T_NATIVE_UCHAR,buf8a);
+ write_dataset(file1_id,2,dims,"dset8b",H5T_NATIVE_UCHAR,buf8b);
+
+/*-------------------------------------------------------------------------
  * Close 
  *-------------------------------------------------------------------------
  */
diff --git a/tools/h5diff/testh5diff.sh b/tools/h5diff/testh5diff.sh
index e39ebc4..aa31ab6 100755
--- a/tools/h5diff/testh5diff.sh
+++ b/tools/h5diff/testh5diff.sh
@@ -213,6 +213,9 @@ TOOLTEST h5diff_55.txt file6.h5 file6.h5 dset5a dset5b
 # 5.6
 TOOLTEST h5diff_56.txt file6.h5 file6.h5 dset6a dset6b
 
+# 5.7
+TOOLTEST h5diff_57.txt file6.h5 file6.h5 dset7a dset7b
+
 # ##############################################################################
 # # Error messages
 # ##############################################################################