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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)$Id: sym.h,v 1.1 2007/04/25 15:33:29 bg- Exp $
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*/
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#ifndef SYM_H
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#define SYM_H
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typedef void (*sym_func_t)();
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/*
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* Even with an explicit cast, it is invalid to convert a function
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* pointer to an object pointer or a pointer to void, or vice-versa.
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*/
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union sym_value {
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void *obj; /* Object pointer */
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sym_func_t func; /* or function pointer */
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};
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struct sym_bol {
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const char *name;
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union sym_value value;
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};
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/* Lookup a pointer to an ANSI C object. */
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void *sym_object(const char *name);
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/* Lookup a pointer to an ANSI C function. */
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sym_func_t sym_function(const char *name);
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extern const int sym_obj_nelts;
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extern const int sym_func_nelts;
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extern const struct sym_bol sym_obj[/* sym_obj_nelts */];
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extern const struct sym_bol sym_func[/* sym_func__nelts */];
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#endif /* SYM_H */
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