| [2] | 1 | /* Copyright (C) 1991,92,93,94,95,96,97,2002 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | /* |
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| 20 | * ISO C99 Standard: 7.5 Errors <errno.h> |
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| 21 | */ |
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| 22 | |
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| 23 | #ifndef _ERRNO_H |
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| 24 | |
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| 25 | /* The includer defined __need_Emath if he wants only the definitions |
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| 26 | of EDOM and ERANGE, and not everything else. */ |
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| 27 | #ifndef __need_Emath |
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| 28 | # define _ERRNO_H 1 |
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| 29 | # include <features.h> |
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| 30 | #endif |
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| 31 | |
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| 32 | __BEGIN_DECLS |
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| 33 | |
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| 34 | /* Get the error number constants from the system-specific file. |
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| 35 | This file will test __need_Emath and _ERRNO_H. */ |
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| 36 | #include <bits/errno.h> |
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| 37 | #undef __need_Emath |
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| 38 | |
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| 39 | #ifdef _ERRNO_H |
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| 40 | |
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| 41 | /* Declare the `errno' variable, unless it's defined as a macro by |
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| 42 | bits/errno.h. This is the case in GNU, where it is a per-thread |
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| 43 | variable. This redeclaration using the macro still works, but it |
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| 44 | will be a function declaration without a prototype and may trigger |
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| 45 | a -Wstrict-prototypes warning. */ |
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| 46 | #ifndef errno |
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| 47 | extern int errno; |
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| 48 | #endif |
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| 49 | |
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| 50 | #if 0 /*def __USE_GNU uClibc note: not supported */ |
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| 51 | |
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| 52 | /* The full and simple forms of the name with which the program was |
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| 53 | invoked. These variables are set up automatically at startup based on |
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| 54 | the value of ARGV[0] (this works only if you use GNU ld). */ |
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| 55 | extern char *program_invocation_name, *program_invocation_short_name; |
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| 56 | #endif /* __USE_GNU */ |
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| 57 | #endif /* _ERRNO_H */ |
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| 58 | |
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| 59 | __END_DECLS |
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| 60 | |
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| 61 | #endif /* _ERRNO_H */ |
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| 62 | |
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| 63 | /* The Hurd <bits/errno.h> defines `error_t' as an enumerated type so |
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| 64 | that printing `error_t' values in the debugger shows the names. We |
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| 65 | might need this definition sometimes even if this file was included |
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| 66 | before. */ |
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| 67 | #if defined __USE_GNU || defined __need_error_t |
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| 68 | # ifndef __error_t_defined |
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| 69 | typedef int error_t; |
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| 70 | # define __error_t_defined 1 |
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| 71 | # endif |
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| 72 | # undef __need_error_t |
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| 73 | #endif |
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