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[svn-r20384] Purpose:

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Fixed Bug 2184 - GMQS: h5diff - incorrect calculation code for 
    --use-system-epsilon option

Description:
    Merged from HDF5 1.8 branch r20369.
    Fixed h5diff for --use-system-epsilon option: the calculation changed
    from ( |a - b| / b ) to ( |a - b| ). This was decided for better 
    performance and was corrected only in HDF5 trunk, so 1.8 got updated.
    Also comments for equal_XXX() function were updated correctly. 
    Also help page and RM got updated correctly.
    Also add test cases for testing the differences w/wo the option.

     
Tested:
 jam (linux32-LE), amani (linux64-LE), heiwa (linuxppc64-BE), tejeda (mac32-LE), linew (solaris-BE), Windows (32-LE)
This commit is contained in:
Jonathan Kim
2011-03-31 16:43:46 -05:00
parent d03182a94e
commit 553e452ce4
27 changed files with 166 additions and 128 deletions
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12
tools/h5diff/testfiles/h5diff_621.txt
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@@ -61,17 +61,11 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]]
number.
-p R, --relative=R Print difference if (|(a-b)/b| > R), R is a positive
number.
--use-system-epsilon Print difference if (|a-b| > EPSILON),
where EPSILON (FLT_EPSILON or FLT_EPSILON) is the
system epsilon value.
If the system epsilon is not defined, use the value
below:
--use-system-epsilon Print difference if (|a-b| > EPSILON), EPSILON is
a system epsilon value.
The system epsilon values are defined as below:
FLT_EPSILON = 1.19209E-07 for float
DBL_EPSILON = 2.22045E-16 for double
-d, -p, and --use-system-epsilon options are used for
comparing floating point values.
By default, strict equality is used. Use -p or -d to
set specific tolerance.
--exclude-path "path" Exclude the specified path to an object when
comparing files or groups. If a group is excluded,
all member objects will also be excluded.