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61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* label - label handling routines
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*
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* Copyright (C) 1999-2007,2014 David I. Bell
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*
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* Calc is open software; you can redistribute it and/or modify it under
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* the terms of the version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* Calc is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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* Public License for more details.
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*
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* A copy of version 2.1 of the GNU Lesser General Public License is
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* distributed with calc under the filename COPYING-LGPL. You should have
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* received a copy with calc; if not, write to Free Software Foundation, Inc.
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Under source code control: 1990/02/15 01:48:33
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* File existed as early as: before 1990
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*
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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#if !defined(INCLUDE_LABEL_H)
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#define INCLUDE_LABEL_H
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#if defined(CALC_SRC) /* if we are building from the calc source tree */
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# include "zmath.h"
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#else
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# include <calc/zmath.h>
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#endif
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#define NULL_LABEL ((LABEL *) 0)
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/*
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* Label structures.
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*/
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typedef struct {
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long l_offset; /* offset into code of label */
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long l_chain; /* offset into code of undefined chain */
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char *l_name; /* name of label if any */
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} LABEL;
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E_FUNC void initlabels(void);
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E_FUNC void definelabel(char *name);
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E_FUNC void addlabel(char *name);
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E_FUNC void clearlabel(LABEL *lp);
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E_FUNC void setlabel(LABEL *lp);
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E_FUNC void uselabel(LABEL *lp);
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E_FUNC void checklabels(void);
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#endif /* !INCLUDE_LABEL_H */
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