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| author | Jonathan Kim <jkm@hdfgroup.org> | 2011-03-31 21:43:46 (GMT) |
|---|---|---|
| committer | Jonathan Kim <jkm@hdfgroup.org> | 2011-03-31 21:43:46 (GMT) |
| commit | 553e452ce4f49a81d41a06b8eb8072bd47d30c59 (patch) | |
| tree | 18fc63ff0d098ee4cfee23628cff326560927a9c /tools/h5diff/h5diffgentest.c | |
| parent | d03182a94e4e40fd9a14be55d5701c14ae85ec38 (diff) | |
| download | hdf5-553e452ce4f49a81d41a06b8eb8072bd47d30c59.zip hdf5-553e452ce4f49a81d41a06b8eb8072bd47d30c59.tar.gz hdf5-553e452ce4f49a81d41a06b8eb8072bd47d30c59.tar.bz2 | |
[svn-r20384] Purpose:
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)
Diffstat (limited to 'tools/h5diff/h5diffgentest.c')
| -rw-r--r-- | tools/h5diff/h5diffgentest.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/tools/h5diff/h5diffgentest.c b/tools/h5diff/h5diffgentest.c index dcfe76a..66f1ce8 100644 --- a/tools/h5diff/h5diffgentest.c +++ b/tools/h5diff/h5diffgentest.c @@ -312,11 +312,16 @@ int test_basic(const char *fname1, const char *fname2, const char *fname3) *------------------------------------------------------------------------- */ { - /* epsilon = 0.00001 */ - float data11[3][2] ={{0.00000f,0.00001f},{0.00001f, 0.00000f},{0.00001f,0.00001f}}; - float data12[3][2] ={{0.00000f,0.00002f},{0.000009f,0.00001f},{0.00000f,0.00001f}}; - double data13[3][2] ={{0.000000000,0.000000001},{0.000000001, 0.000000000},{0.000000001,0.000000001}}; - double data14[3][2] ={{0.000000000,0.000000002},{0.0000000009,0.000000001},{0.000000000,0.000000001}}; + /* epsilon = 0.0000001 = 1e-7 + * system epsilon for float : FLT_EPSILON = 1.19209E-07 + */ + float data11[3][2] ={{0.000000f,0.0000001f},{0.0000001f, 0.00000022f},{0.0000001f,0.0000001f}}; + float data12[3][2] ={{0.000000f,0.0000002f},{0.0000003f,0.0000001f},{0.000000f,0.0000001f}}; + /* 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}}; write_dset(gid1,2,dims2,"fp1",H5T_NATIVE_FLOAT,data11); write_dset(gid1,2,dims2,"fp2",H5T_NATIVE_FLOAT,data12); |