Mercurial > cpython-lru_cache-weakref

annotate Python/strerror.c @ 24866:f0dbd5b49d8a legacy-trunk

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Streamline the fast track for CFunction calls a bit more: there was nothing special done if keyword arguments were present, so test for that earlier and fall through to the normal case if there are any. This ought to slow down CFunction calls with keyword args, but I don't care; it's a tiny (1%) improvement for pystone.
author Guido van Rossum <guido@python.org>
date Fri, 16 Aug 2002 16:14:00 +0000
parents 379fc66f4c96
children 86fdf8fe7f17
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2 /* PD implementation of strerror() for systems that don't have it.
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3 Author: Guido van Rossum, CWI Amsterdam, Oct. 1990, <guido@cwi.nl>. */
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5 #include <stdio.h>
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6 #include "Python.h"
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8 extern int sys_nerr;
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9 extern char *sys_errlist[];
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11 char *
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12 strerror(int err)
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13 {
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14 static char buf[20];
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15 if (err >= 0 && err < sys_nerr)
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16 return sys_errlist[err];
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17 PyOS_snprintf(buf, sizeof(buf), "Unknown errno %d", err);
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18 return buf;
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19 }
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21 #ifdef macintosh
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22 int sys_nerr = 0;
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23 char *sys_errlist[1] = 0;
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24 #endif