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gh-141004: soft-deprecate Py_INFINITY macro (#141033)

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Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Sergey B Kirpichev 2025-11-12 15:44:49 +03:00 • committed by GitHub
parent c6f3dd6a50
commit e2026731f5
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GPG key ID: B5690EEEBB952194
13 changed files with 45 additions and 36 deletions
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20
Modules/mathmodule.c
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@ -395,7 +395,7 @@ m_tgamma(double x)
if (x == 0.0) {
errno = EDOM;
/* tgamma(+-0.0) = +-inf, divide-by-zero */
return copysign(Py_INFINITY, x);
return copysign(INFINITY, x);
}
/* integer arguments */
@ -426,7 +426,7 @@ m_tgamma(double x)
}
else {
errno = ERANGE;
return Py_INFINITY;
return INFINITY;
}
}
@ -490,14 +490,14 @@ m_lgamma(double x)
if (isnan(x))
return x; /* lgamma(nan) = nan */
else
return Py_INFINITY; /* lgamma(+-inf) = +inf */
return 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_INFINITY; /* integers n <= 0 */
return INFINITY; /* integers n <= 0 */
}
else {
return 0.0; /* lgamma(1) = lgamma(2) = 0.0 */
@ -633,7 +633,7 @@ m_log(double x)
return log(x);
errno = EDOM;
if (x == 0.0)
return -Py_INFINITY; /* log(0) = -inf */
return -INFINITY; /* log(0) = -inf */
else
return Py_NAN; /* log(-ve) = nan */
}
@ -676,7 +676,7 @@ m_log2(double x)
}
else if (x == 0.0) {
errno = EDOM;
return -Py_INFINITY; /* log2(0) = -inf, divide-by-zero */
return -INFINITY; /* log2(0) = -inf, divide-by-zero */
}
else {
errno = EDOM;
@ -692,7 +692,7 @@ m_log10(double x)
return log10(x);
errno = EDOM;
if (x == 0.0)
return -Py_INFINITY; /* log10(0) = -inf */
return -INFINITY; /* log10(0) = -inf */
else
return Py_NAN; /* log10(-ve) = nan */
}
@ -1500,7 +1500,7 @@ math_ldexp_impl(PyObject *module, double x, PyObject *i)
errno = 0;
} else if (exp > INT_MAX) {
/* overflow */
r = copysign(Py_INFINITY, x);
r = copysign(INFINITY, x);
errno = ERANGE;
} else if (exp < INT_MIN) {
/* underflow to +-0 */
@ -2983,7 +2983,7 @@ math_ulp_impl(PyObject *module, double x)
if (isinf(x)) {
return x;
}
double inf = Py_INFINITY;
double inf = INFINITY;
double x2 = nextafter(x, inf);
if (isinf(x2)) {
/* special case: x is the largest positive representable float */
@ -3007,7 +3007,7 @@ math_exec(PyObject *module)
if (PyModule_Add(module, "tau", PyFloat_FromDouble(Py_MATH_TAU)) < 0) {
return -1;
}
if (PyModule_Add(module, "inf", PyFloat_FromDouble(Py_INFINITY)) < 0) {
if (PyModule_Add(module, "inf", PyFloat_FromDouble(INFINITY)) < 0) {
return -1;
}
if (PyModule_Add(module, "nan", PyFloat_FromDouble(fabs(Py_NAN))) < 0) {