Mercurial > cpython-lru_cache-weakref

annotate Modules/_math.h @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 08418369da7b
children
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1 double _Py_acosh(double x);
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2 double _Py_asinh(double x);
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3 double _Py_atanh(double x);
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4 double _Py_expm1(double x);
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5 double _Py_log1p(double x);
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6
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7 #ifdef HAVE_ACOSH
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8 #define m_acosh acosh
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9 #else
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10 /* if the system doesn't have acosh, use the substitute
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11 function defined in Modules/_math.c. */
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12 #define m_acosh _Py_acosh
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13 #endif
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14
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15 #ifdef HAVE_ASINH
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16 #define m_asinh asinh
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17 #else
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18 /* if the system doesn't have asinh, use the substitute
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19 function defined in Modules/_math.c. */
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20 #define m_asinh _Py_asinh
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21 #endif
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22
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23 #ifdef HAVE_ATANH
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24 #define m_atanh atanh
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25 #else
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26 /* if the system doesn't have atanh, use the substitute
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27 function defined in Modules/_math.c. */
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28 #define m_atanh _Py_atanh
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29 #endif
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31 #ifdef HAVE_EXPM1
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32 #define m_expm1 expm1
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33 #else
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34 /* if the system doesn't have expm1, use the substitute
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35 function defined in Modules/_math.c. */
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36 #define m_expm1 _Py_expm1
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37 #endif
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38
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39 /* Use the substitute from _math.c on all platforms:
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40 it includes workarounds for buggy handling of zeros. */
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41 #define m_log1p _Py_log1p