[svn-r9840] Purpose: Bug fix and new test

Description:  The functions for user-define floating-point type, like
H5Tset_fields, H5Tset_offset, H5Tset_precision, H5Tset_size, have some
minor bugs.  For error checking, the library didn't include offset value
somehow.

Solution:  Corrected those bugs.

Platforms tested: h5committest and fuss

Misc. update:
This commit is contained in:
Raymond Lu 2005-01-20 12:32:06 -05:00
parent fda3252166
commit dad89387a3
3 changed files with 270 additions and 6 deletions

View File

@ -3614,9 +3614,9 @@ H5T_set_size(H5T_t *dt, size_t size)
* The sign, mantissa, and exponent fields should be adjusted
* first when decreasing the size of a floating point type.
*/
if (dt->shared->u.atomic.u.f.sign >= prec ||
dt->shared->u.atomic.u.f.epos + dt->shared->u.atomic.u.f.esize > prec ||
dt->shared->u.atomic.u.f.mpos + dt->shared->u.atomic.u.f.msize > prec) {
if (dt->shared->u.atomic.u.f.sign >= prec+offset ||
dt->shared->u.atomic.u.f.epos + dt->shared->u.atomic.u.f.esize > prec+offset ||
dt->shared->u.atomic.u.f.mpos + dt->shared->u.atomic.u.f.msize > prec+offset) {
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "adjust sign, mantissa, and exponent fields first");
}
break;

View File

@ -251,9 +251,9 @@ H5T_set_precision(const H5T_t *dt, size_t prec)
printf("mpos: %d ", dt->shared->u.atomic.u.f.mpos);
printf("msize: %d ", dt->shared->u.atomic.u.f.msize);
printf("prec: %d\n", prec); */
if (dt->shared->u.atomic.u.f.sign >= prec ||
dt->shared->u.atomic.u.f.epos + dt->shared->u.atomic.u.f.esize > prec ||
dt->shared->u.atomic.u.f.mpos + dt->shared->u.atomic.u.f.msize > prec)
if (dt->shared->u.atomic.u.f.sign >= prec+offset ||
dt->shared->u.atomic.u.f.epos + dt->shared->u.atomic.u.f.esize > prec+offset ||
dt->shared->u.atomic.u.f.mpos + dt->shared->u.atomic.u.f.msize > prec+offset)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "adjust sign, mantissa, and exponent fields first")
break;
default:

View File

@ -66,6 +66,7 @@ const char *FILENAME[] = {
"dtypes4",
"dtypes5",
"dtypes6",
"dtypes7",
NULL
};
@ -2363,6 +2364,265 @@ test_query(void)
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_derived_flt
*
* Purpose: Tests user-define and query functions of floating-point types.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Raymond Lu
* Thursday, Jan 6, 2005
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_derived_flt(void)
{
hid_t file=-1, tid1=-1, tid2=-1;
char filename[1024];
size_t precision, spos, epos, esize, mpos, msize, size, ebias;
int offset;
TESTING("user-define and query functions of floating-point types");
/* Create File */
h5_fixname(FILENAME[6], H5P_DEFAULT, filename, sizeof filename);
if((file=H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))<0) {
H5_FAILED();
printf("Can't create file\n");
goto error;
}
if((tid1 = H5Tcopy(H5T_IEEE_F64LE))<0) {
H5_FAILED();
printf("Can't copy data type\n");
goto error;
}
if((tid2 = H5Tcopy(H5T_IEEE_F32LE))<0) {
H5_FAILED();
printf("Can't copy data type\n");
goto error;
}
/*------------------------------------------------------------------------
* 1st floating-point type
* size=7 byte, precision=40 bits, offset=3 bits, mantissa size=31 bits,
* mantissa position=3, exponent size=10 bits, exponent position=34,
* exponent bias=511. It can be illustrated in little-endian order as
*
* 6 5 4 3 2 1 0
* ???????? ???SEEEE EEEEEEMM MMMMMMMM MMMMMMMM MMMMMMMM MMMMM???
*
* To create a new floating-point type, the following properties must be
* set in the order of
* set fields -> set offset -> set precision -> set size.
* All these properties must be set before the type can function. Other
* properties can be set anytime. Derived type size cannot be expanded
* bigger than original size but can be decreased. There should be no
* holes among the significant bits. Exponent bias usually is set
* 2^(n-1)-1, where n is the exponent size.
*-----------------------------------------------------------------------*/
if(H5Tset_fields(tid1, 44, 34, 10, 3, 31)<0) {
H5_FAILED();
printf("Can't set fields\n");
goto error;
}
if(H5Tset_offset(tid1, 3)<0) {
H5_FAILED();
printf("Can't set offset\n");
goto error;
}
if(H5Tset_precision(tid1, 42)<0) {
H5_FAILED();
printf("Can't set precision\n");
goto error;
}
if(H5Tset_size(tid1, 7)<0) {
H5_FAILED();
printf("Can't set size\n");
goto error;
}
if(H5Tset_ebias(tid1, 511)<0) {
H5_FAILED();
printf("Can't set exponent bias\n");
goto error;
}
if(H5Tset_pad(tid1, H5T_PAD_ZERO, H5T_PAD_ZERO)<0) {
H5_FAILED();
printf("Can't set padding\n");
goto error;
}
if(H5Tcommit(file, "new float type 1", tid1)<0) {
H5_FAILED();
printf("Can't set inpad\n");
goto error;
}
if(H5Tclose(tid1)<0) {
H5_FAILED();
printf("Can't close datatype\n");
goto error;
}
if((tid1 = H5Topen(file, "new float type 1"))<0) {
H5_FAILED();
printf("Can't open datatype\n");
goto error;
}
if(H5Tget_fields(tid1, &spos, &epos, &esize, &mpos, &msize)<0) {
H5_FAILED();
printf("Can't get fields\n");
goto error;
}
if(spos!=44 || epos!=34 || esize!=10 || mpos!=3 || msize!=31) {
H5_FAILED();
printf("Wrong field values\n");
goto error;
}
if((precision = H5Tget_precision(tid1))!=42) {
H5_FAILED();
printf("Can't get precision or wrong precision\n");
goto error;
}
if((offset = H5Tget_offset(tid1))!=3) {
H5_FAILED();
printf("Can't get offset or wrong offset\n");
goto error;
}
if((size = H5Tget_size(tid1))!=7) {
H5_FAILED();
printf("Can't get size or wrong size\n");
goto error;
}
if((ebias = H5Tget_ebias(tid1))!=511) {
H5_FAILED();
printf("Can't get exponent bias or wrong bias\n");
goto error;
}
/*--------------------------------------------------------------------------
* 2nd floating-point type
* size=3 byte, precision=12 bits, offset=5 bits, mantissa size=8 bits,
* mantissa position=5, exponent size=3 bits, exponent position=13, exponent
* bias=3. It can be illustrated in little-endian order as
*
* 2 1 0
* SEEEEEEE MMMMMMMM MMMMMMMM
*--------------------------------------------------------------------------*/
if(H5Tset_fields(tid2, 23, 16, 7, 0, 16)<0) {
H5_FAILED();
printf("Can't set fields\n");
goto error;
}
if(H5Tset_offset(tid2, 0)<0) {
H5_FAILED();
printf("Can't set offset\n");
goto error;
}
if(H5Tset_precision(tid2, 24)<0) {
H5_FAILED();
printf("Can't set precision\n");
goto error;
}
if(H5Tset_size(tid2, 3)<0) {
H5_FAILED();
printf("Can't set size\n");
goto error;
}
if(H5Tset_ebias(tid2, 63)<0) {
H5_FAILED();
printf("Can't set size\n");
goto error;
}
if(H5Tset_pad(tid2, H5T_PAD_ZERO, H5T_PAD_ZERO)<0) {
H5_FAILED();
printf("Can't set padding\n");
goto error;
}
if(H5Tcommit(file, "new float type 2", tid2)<0) {
H5_FAILED();
printf("Can't set inpad\n");
goto error;
}
if(H5Tclose(tid2)<0) {
H5_FAILED();
printf("Can't close datatype\n");
goto error;
}
if((tid2 = H5Topen(file, "new float type 2"))<0) {
H5_FAILED();
printf("Can't open datatype\n");
goto error;
}
if(H5Tget_fields(tid2, &spos, &epos, &esize, &mpos, &msize)<0) {
H5_FAILED();
printf("Can't get fields\n");
goto error;
}
if(spos!=23 || epos!=16 || esize!=7 || mpos!=0 || msize!=16) {
H5_FAILED();
printf("Wrong field values\n");
goto error;
}
if((precision = H5Tget_precision(tid2))!=24) {
H5_FAILED();
printf("Can't get precision or wrong precision\n");
goto error;
}
if((offset = H5Tget_offset(tid2))!=0) {
H5_FAILED();
printf("Can't get offset or wrong offset\n");
goto error;
}
if((size = H5Tget_size(tid2))!=3) {
H5_FAILED();
printf("Can't get size or wrong size\n");
goto error;
}
if((ebias = H5Tget_ebias(tid2))!=63) {
H5_FAILED();
printf("Can't get exponent bias or wrong bias\n");
goto error;
}
if(H5Tclose(tid2)<0) {
H5_FAILED();
printf("Can't close datatype\n");
goto error;
}
if(H5Fclose(file)<0) {
H5_FAILED();
printf("Can't close file\n");
goto error;
} /* end if */
PASSED();
reset_hdf5(); /*print statistics*/
return 0;
error:
H5E_BEGIN_TRY {
H5Tclose (tid1);
H5Tclose (tid2);
H5Fclose (file);
} H5E_END_TRY;
reset_hdf5(); /*print statistics*/
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_transient
@ -7027,6 +7287,10 @@ main(void)
nerrors += test_conv_bitfield();
nerrors += test_opaque();
/* Test user-define, query functions and software conversion
* for user-defined floating-point types */
nerrors += test_derived_flt();
/* Does floating point overflow generate a SIGFPE? */
generates_sigfpe();