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Libraries
asn1c
Commits
2a789d9e
Commit
2a789d9e
authored
Sep 27, 2004
by
Lev Walkin
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Plain Diff
nan handling
parent
36ee690c
Changes
2
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Showing
2 changed files
with
24 additions
and
22 deletions
+24
-22
skeletons/REAL.c
skeletons/REAL.c
+20
-19
skeletons/tests/check-REAL.c
skeletons/tests/check-REAL.c
+4
-3
No files found.
skeletons/REAL.c
View file @
2a789d9e
...
@@ -17,8 +17,8 @@
...
@@ -17,8 +17,8 @@
#endif
#endif
#ifndef NAN
#ifndef NAN
static
const
double
nan0
;
static
const
double
real_
nan0
;
#define NAN (
nan0/
nan0)
#define NAN (
real_nan0/real_
nan0)
#endif
#endif
/*
/*
...
@@ -60,13 +60,17 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
...
@@ -60,13 +60,17 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
/*
/*
* ilogb(+-0) returns -INT_MAX or INT_MIN (platform-dependent)
* ilogb(+-0) returns -INT_MAX or INT_MIN (platform-dependent)
* ilogb(+-inf) returns INT_MAX
* ilogb(+-inf) returns INT_MAX
* ilogb(NaN) returns INT_MIN or INT_MAX (platform-dependent)
*/
*/
expval
=
ilogb
(
d
);
expval
=
ilogb
(
d
);
if
(
expval
<=
-
INT_MAX
/* Also catches
(d == 0
) */
if
(
expval
<=
-
INT_MAX
/* Also catches
+-0 and maybe isnan(
) */
||
expval
==
INT_MAX
/* catches
finite() which catches
isnan() */
||
expval
==
INT_MAX
/* catches
isfin() and maybe
isnan() */
)
{
)
{
/* fpclassify(3) is not portable yet */
/* fpclassify(3) is not portable yet */
if
(
expval
<=
-
INT_MAX
)
{
if
(
isnan
(
d
))
{
buf
=
"<NOT-A-NUMBER/>"
;
buflen
=
15
;
}
else
if
(
expval
<=
-
INT_MAX
)
{
if
(
copysign
(
1
.
0
,
d
)
<
0
.
0
)
{
if
(
copysign
(
1
.
0
,
d
)
<
0
.
0
)
{
buf
=
"-0"
;
buf
=
"-0"
;
buflen
=
2
;
buflen
=
2
;
...
@@ -74,7 +78,7 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
...
@@ -74,7 +78,7 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
buf
=
"0"
;
buf
=
"0"
;
buflen
=
1
;
buflen
=
1
;
}
}
}
else
if
(
isinf
(
d
))
{
}
else
{
/* isinf() */
if
(
copysign
(
1
.
0
,
d
)
<
0
.
0
)
{
if
(
copysign
(
1
.
0
,
d
)
<
0
.
0
)
{
buf
=
"<MINUS-INFINITY/>"
;
buf
=
"<MINUS-INFINITY/>"
;
buflen
=
17
;
buflen
=
17
;
...
@@ -82,9 +86,6 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
...
@@ -82,9 +86,6 @@ REAL__dump(double d, int canonical, asn_app_consume_bytes_f *cb, void *app_key)
buf
=
"<PLUS-INFINITY/>"
;
buf
=
"<PLUS-INFINITY/>"
;
buflen
=
16
;
buflen
=
16
;
}
}
}
else
{
buf
=
"<NOT-A-NUMBER/>"
;
buflen
=
15
;
}
}
return
(
cb
(
buf
,
buflen
,
app_key
)
<
0
)
?
-
1
:
buflen
;
return
(
cb
(
buf
,
buflen
,
app_key
)
<
0
)
?
-
1
:
buflen
;
}
}
...
@@ -271,7 +272,7 @@ asn1_REAL2double(const REAL_t *st, double *dbl_value) {
...
@@ -271,7 +272,7 @@ asn1_REAL2double(const REAL_t *st, double *dbl_value) {
*
dbl_value
=
NAN
;
*
dbl_value
=
NAN
;
return
0
;
return
0
;
case
0x43
:
/* 01000011: minus zero */
case
0x43
:
/* 01000011: minus zero */
*
dbl_value
=
NAN
;
*
dbl_value
=
-
0
.
0
;
return
0
;
return
0
;
}
}
...
@@ -412,11 +413,11 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
...
@@ -412,11 +413,11 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
/*
/*
* ilogb(+-0) returns -INT_MAX or INT_MIN (platform-dependent)
* ilogb(+-0) returns -INT_MAX or INT_MIN (platform-dependent)
* ilogb(+-inf) returns INT_MAX
* ilogb(+-inf) returns INT_MAX
* ilogb(NaN) returns INT_MIN or INT_MAX (platform-dependent)
*/
*/
expval
=
ilogb
(
dbl_value
);
expval
=
ilogb
(
dbl_value
);
if
(
expval
<=
-
INT_MAX
/* Also catches +-0 and maybe isnan() */
if
(
expval
<=
-
INT_MAX
/* Also catches (dbl_value == 0) */
||
expval
==
INT_MAX
/* catches isfin() and maybe isnan() */
||
expval
==
INT_MAX
/* catches finite() which catches isnan() */
)
{
)
{
if
(
!
st
->
buf
||
st
->
size
<
2
)
{
if
(
!
st
->
buf
||
st
->
size
<
2
)
{
ptr
=
(
uint8_t
*
)
MALLOC
(
2
);
ptr
=
(
uint8_t
*
)
MALLOC
(
2
);
...
@@ -424,7 +425,11 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
...
@@ -424,7 +425,11 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
st
->
buf
=
ptr
;
st
->
buf
=
ptr
;
}
}
/* fpclassify(3) is not portable yet */
/* fpclassify(3) is not portable yet */
if
(
expval
<=
-
INT_MAX
)
{
if
(
isnan
(
dbl_value
))
{
st
->
buf
[
0
]
=
0x42
;
/* NaN */
st
->
buf
[
1
]
=
0
;
st
->
size
=
1
;
}
else
if
(
expval
<=
-
INT_MAX
)
{
if
(
copysign
(
1
.
0
,
dbl_value
)
<
0
.
0
)
{
if
(
copysign
(
1
.
0
,
dbl_value
)
<
0
.
0
)
{
st
->
buf
[
0
]
=
0x80
|
0x40
;
st
->
buf
[
0
]
=
0x80
|
0x40
;
st
->
buf
[
1
]
=
0
;
st
->
buf
[
1
]
=
0
;
...
@@ -433,7 +438,7 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
...
@@ -433,7 +438,7 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
st
->
buf
[
0
]
=
0
;
/* JIC */
st
->
buf
[
0
]
=
0
;
/* JIC */
st
->
size
=
0
;
st
->
size
=
0
;
}
}
}
else
if
(
isinf
(
dbl_value
))
{
}
else
{
/* isinf() */
if
(
copysign
(
1
.
0
,
dbl_value
)
<
0
.
0
)
{
if
(
copysign
(
1
.
0
,
dbl_value
)
<
0
.
0
)
{
st
->
buf
[
0
]
=
0x41
;
/* MINUS-INFINITY */
st
->
buf
[
0
]
=
0x41
;
/* MINUS-INFINITY */
}
else
{
}
else
{
...
@@ -441,10 +446,6 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
...
@@ -441,10 +446,6 @@ asn1_double2REAL(REAL_t *st, double dbl_value) {
}
}
st
->
buf
[
1
]
=
0
;
st
->
buf
[
1
]
=
0
;
st
->
size
=
1
;
st
->
size
=
1
;
}
else
{
st
->
buf
[
0
]
=
0x42
;
/* NaN */
st
->
buf
[
1
]
=
0
;
st
->
size
=
1
;
}
}
return
0
;
return
0
;
}
}
...
...
skeletons/tests/check-REAL.c
View file @
2a789d9e
...
@@ -75,7 +75,7 @@ check(REAL_t *rn, double orig_dbl, const char *sample, const char *canonical_sam
...
@@ -75,7 +75,7 @@ check(REAL_t *rn, double orig_dbl, const char *sample, const char *canonical_sam
printf
(
"converted into ["
);
printf
(
"converted into ["
);
for
(
p
=
rn
->
buf
,
end
=
p
+
rn
->
size
;
p
<
end
;
p
++
)
for
(
p
=
rn
->
buf
,
end
=
p
+
rn
->
size
;
p
<
end
;
p
++
)
printf
(
"%02x"
,
*
p
);
printf
(
"%02x"
,
*
p
);
printf
(
"]
\n
"
);
printf
(
"]
: %d
\n
"
,
rn
->
size
);
ret
=
asn1_REAL2double
(
rn
,
&
val
);
ret
=
asn1_REAL2double
(
rn
,
&
val
);
assert
(
ret
==
0
);
assert
(
ret
==
0
);
...
@@ -86,8 +86,7 @@ check(REAL_t *rn, double orig_dbl, const char *sample, const char *canonical_sam
...
@@ -86,8 +86,7 @@ check(REAL_t *rn, double orig_dbl, const char *sample, const char *canonical_sam
printf
(
"] (ilogb %d)
\n
"
,
ilogb
(
val
));
printf
(
"] (ilogb %d)
\n
"
,
ilogb
(
val
));
printf
(
"%.12f vs %.12f
\n
"
,
orig_dbl
,
val
);
printf
(
"%.12f vs %.12f
\n
"
,
orig_dbl
,
val
);
assert
(
orig_dbl
==
val
||
(
isnan
(
orig_dbl
)
&&
isnan
(
val
)));
assert
(
orig_dbl
==
val
);
printf
(
"OK
\n
"
);
printf
(
"OK
\n
"
);
check_str_repr
(
val
,
sample
,
canonical_sample
);
check_str_repr
(
val
,
sample
,
canonical_sample
);
...
@@ -144,9 +143,11 @@ check_buf(uint8_t *buf, size_t bufsize, double verify, const char *sample, const
...
@@ -144,9 +143,11 @@ check_buf(uint8_t *buf, size_t bufsize, double verify, const char *sample, const
int
int
main
()
{
main
()
{
REAL_t
rn
;
REAL_t
rn
;
static
const
double
c_NaN
=
0
.
0
;
memset
(
&
rn
,
0
,
sizeof
(
rn
));
memset
(
&
rn
,
0
,
sizeof
(
rn
));
check
(
&
rn
,
c_NaN
/
c_NaN
,
"<NOT-A-NUMBER/>"
,
"<NOT-A-NUMBER/>"
);
check
(
&
rn
,
0
.
0
,
"0"
,
"0"
);
check
(
&
rn
,
0
.
0
,
"0"
,
"0"
);
check
(
&
rn
,
-
0
.
0
,
"-0"
,
"-0"
);
/* minus-zero */
check
(
&
rn
,
-
0
.
0
,
"-0"
,
"-0"
);
/* minus-zero */
check
(
&
rn
,
1
.
0
,
"1.0"
,
"1.0E0"
);
check
(
&
rn
,
1
.
0
,
"1.0"
,
"1.0E0"
);
...
...
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