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Code Issues Releases Activity

gh-120026: soft deprecate Py_HUGE_VAL macro (#120027)

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Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
This commit is contained in:
Sergey B Kirpichev 2024-11-02 01:04:31 +03:00 committed by GitHub
parent 28b148fb32
commit 8477951a1c
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GPG Key ID: B5690EEEBB952194
10 changed files with 23 additions and 18 deletions
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2
Doc/c-api/conversion.rst
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@ -105,7 +105,7 @@ The following functions provide locale-independent string to number conversions.
If ``s`` represents a value that is too large to store in a float
(for example, ``"1e500"`` is such a string on many platforms) then
if ``overflow_exception`` is ``NULL`` return ``Py_HUGE_VAL`` (with
if ``overflow_exception`` is ``NULL`` return ``Py_INFINITY`` (with
an appropriate sign) and don't set any exception. Otherwise,
``overflow_exception`` must point to a Python exception object;
raise that exception and return ``-1.0``. In both cases, set

4
Doc/whatsnew/3.14.rst
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@ -812,6 +812,10 @@ Porting to Python 3.14
Deprecated
----------
* The :c:macro:`!Py_HUGE_VAL` macro is :term:`soft deprecated`,
use :c:macro:`!Py_INFINITY` instead.
(Contributed by Sergey B Kirpichev in :gh:`120026`.)
* Macros :c:macro:`!Py_IS_NAN`, :c:macro:`!Py_IS_INFINITY`
and :c:macro:`!Py_IS_FINITE` are :term:`soft deprecated`,
use instead :c:macro:`!isnan`, :c:macro:`!isinf` and

4
Include/floatobject.h
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@ -21,10 +21,10 @@ PyAPI_DATA(PyTypeObject) PyFloat_Type;
#define Py_RETURN_INF(sign) \
do { \
if (copysign(1., sign) == 1.) { \
return PyFloat_FromDouble(Py_HUGE_VAL); \
return PyFloat_FromDouble(Py_INFINITY); \
} \
else { \
return PyFloat_FromDouble(-Py_HUGE_VAL); \
return PyFloat_FromDouble(-Py_INFINITY); \
} \
} while(0)

6
Include/internal/pycore_pymath.h
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@ -33,7 +33,7 @@ extern "C" {
static inline void _Py_ADJUST_ERANGE1(double x)
{
if (errno == 0) {
if (x == Py_HUGE_VAL || x == -Py_HUGE_VAL) {
if (x == Py_INFINITY || x == -Py_INFINITY) {
errno = ERANGE;
}
}
@ -44,8 +44,8 @@ static inline void _Py_ADJUST_ERANGE1(double x)
static inline void _Py_ADJUST_ERANGE2(double x, double y)
{
if (x == Py_HUGE_VAL || x == -Py_HUGE_VAL ||
y == Py_HUGE_VAL || y == -Py_HUGE_VAL)
if (x == Py_INFINITY || x == -Py_INFINITY ||
y == Py_INFINITY || y == -Py_INFINITY)
{
if (errno == 0) {
errno = ERANGE;

2
Include/pymath.h
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@ -49,7 +49,7 @@
/* Py_HUGE_VAL should always be the same as Py_INFINITY. But historically
* this was not reliable and Python did not require IEEE floats and C99
* conformity. Prefer Py_INFINITY for new code.
* conformity. The macro was soft deprecated in Python 3.14, use Py_INFINITY instead.
*/
#ifndef Py_HUGE_VAL
# define Py_HUGE_VAL HUGE_VAL

1
Misc/NEWS.d/next/C_API/2024-06-04-13-38-44.gh-issue-120026.uhEvJ9.rst Normal file
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@ -0,0 +1 @@
The :c:macro:`!Py_HUGE_VAL` macro is :term:`soft deprecated`.

2
Modules/cmathmodule.c
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@ -150,7 +150,7 @@ special_type(double d)
#define P14 0.25*Py_MATH_PI
#define P12 0.5*Py_MATH_PI
#define P34 0.75*Py_MATH_PI
#define INF Py_HUGE_VAL
#define INF Py_INFINITY
#define N Py_NAN
#define U -9.5426319407711027e33 /* unlikely value, used as placeholder */

14
Modules/mathmodule.c
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@ -438,7 +438,7 @@ m_tgamma(double x)
}
else {
errno = ERANGE;
return Py_HUGE_VAL;
return Py_INFINITY;
}
}
@ -502,14 +502,14 @@ m_lgamma(double x)
if (isnan(x))
return x; /* lgamma(nan) = nan */
else
return Py_HUGE_VAL; /* lgamma(+-inf) = +inf */
return Py_INFINITY; /* lgamma(+-inf) = +inf */
}
/* integer arguments */
if (x == floor(x) && x <= 2.0) {
if (x <= 0.0) {
errno = EDOM; /* lgamma(n) = inf, divide-by-zero for */
return Py_HUGE_VAL; /* integers n <= 0 */
return Py_INFINITY; /* integers n <= 0 */
}
else {
return 0.0; /* lgamma(1) = lgamma(2) = 0.0 */
@ -645,7 +645,7 @@ m_log(double x)
return log(x);
errno = EDOM;
if (x == 0.0)
return -Py_HUGE_VAL; /* log(0) = -inf */
return -Py_INFINITY; /* log(0) = -inf */
else
return Py_NAN; /* log(-ve) = nan */
}
@ -688,7 +688,7 @@ m_log2(double x)
}
else if (x == 0.0) {
errno = EDOM;
return -Py_HUGE_VAL; /* log2(0) = -inf, divide-by-zero */
return -Py_INFINITY; /* log2(0) = -inf, divide-by-zero */
}
else {
errno = EDOM;
@ -704,7 +704,7 @@ m_log10(double x)
return log10(x);
errno = EDOM;
if (x == 0.0)
return -Py_HUGE_VAL; /* log10(0) = -inf */
return -Py_INFINITY; /* log10(0) = -inf */
else
return Py_NAN; /* log10(-ve) = nan */
}
@ -2126,7 +2126,7 @@ math_ldexp_impl(PyObject *module, double x, PyObject *i)
errno = 0;
} else if (exp > INT_MAX) {
/* overflow */
r = copysign(Py_HUGE_VAL, x);
r = copysign(Py_INFINITY, x);
errno = ERANGE;
} else if (exp < INT_MIN) {
/* underflow to +-0 */

2
Objects/floatobject.c
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@ -2390,7 +2390,7 @@ PyFloat_Unpack2(const char *data, int le)
if (e == 0x1f) {
if (f == 0) {
/* Infinity */
return sign ? -Py_HUGE_VAL : Py_HUGE_VAL;
return sign ? -Py_INFINITY : Py_INFINITY;
}
else {
/* NaN */

4
Python/pystrtod.c
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@ -43,7 +43,7 @@ _Py_parse_inf_or_nan(const char *p, char **endptr)
s += 3;
if (case_insensitive_match(s, "inity"))
s += 5;
retval = negate ? -Py_HUGE_VAL : Py_HUGE_VAL;
retval = negate ? -Py_INFINITY : Py_INFINITY;
}
else if (case_insensitive_match(s, "nan")) {
s += 3;
@ -286,7 +286,7 @@ _PyOS_ascii_strtod(const char *nptr, char **endptr)
string, -1.0 is returned and again ValueError is raised.
On overflow (e.g., when trying to convert '1e500' on an IEEE 754 machine),
if overflow_exception is NULL then +-Py_HUGE_VAL is returned, and no Python
if overflow_exception is NULL then +-Py_INFINITY is returned, and no Python
exception is raised. Otherwise, overflow_exception should point to
a Python exception, this exception will be raised, -1.0 will be returned,
and *endptr will point just past the end of the converted value.