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e9310f8ec1
always return zero in A and this can be used in C code to make the code shorter. git-svn-id: svn://svn.cc65.org/cc65/trunk@4687 b7a2c559-68d2-44c3-8de9-860c34a00d81
85 lines
3.7 KiB
C
85 lines
3.7 KiB
C
/*****************************************************************************/
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/* */
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/* errno.h */
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/* */
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/* Error codes */
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/* */
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/* */
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/* */
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/* (C) 1998-2010, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _ERRNO_H
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#define _ERRNO_H
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/* Operating system specific error codes */
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extern unsigned char _oserror;
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/* The following functions maps an operating system specific error code (for
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* example from _oserror) into one of the E... codes below. It is user
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* callable.
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*/
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int __fastcall__ _osmaperrno (unsigned char oserror);
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/* Set errno to a specific error code and return zero. Used by the library */
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unsigned char __fastcall__ _seterrno (unsigned char code);
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/* System error codes go here */
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extern int _errno;
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/* errno must be a macro */
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#define errno _errno
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/* Possible error codes */
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#define ENOENT 1 /* No such file or directory */
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#define ENOMEM 2 /* Out of memory */
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#define EACCES 3 /* Permission denied */
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#define ENODEV 4 /* No such device */
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#define EMFILE 5 /* Too many open files */
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#define EBUSY 6 /* Device or resource busy */
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#define EINVAL 7 /* Invalid argument */
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#define ENOSPC 8 /* No space left on device */
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#define EEXIST 9 /* File exists */
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#define EAGAIN 10 /* Try again */
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#define EIO 11 /* I/O error */
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#define EINTR 12 /* Interrupted system call */
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#define ENOSYS 13 /* Function not implemented */
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#define ESPIPE 14 /* Illegal seek */
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#define ERANGE 15 /* Range error */
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#define EUNKNOWN 16 /* Unknown OS specific error */
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#endif
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