modules/up/src/gnug++/SymbolConjunctPtr.Bag.cc
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FUNCTIONS
This source file includes following functions.
- error
- seek
- owns
- remove
- nof
- clear
// This may look like C code, but it is really -*- C++ -*-
/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea (dl@rocky.oswego.edu)
This file is part of the GNU C++ Library. This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef __GNUG__
#pragma implementation
#endif
#include "config.h"
#include "SymbolConjunctPtr.Bag.h"
#include <builtin.h>
// error handling
void SymbolConjunctPtrBag::error(const char* msg)
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{
(*lib_error_handler)("Bag", msg);
}
Pix SymbolConjunctPtrBag::seek(SymbolConjunctPtr item, Pix i)
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{
if (i == 0)
i = first();
else
next(i);
for (;i != 0 && (!(SymbolConjunctPtrEQ((*this)(i), item))); next(i));
return i;
}
int SymbolConjunctPtrBag::owns(Pix p)
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{
if (p == 0) return 0;
for (Pix i = first(); i != 0; next(i)) if (i == p) return 1;
return 0;
}
void SymbolConjunctPtrBag::remove(SymbolConjunctPtr item)
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{
int i = nof(item);
while (i-- > 0) del(item);
}
int SymbolConjunctPtrBag::nof(SymbolConjunctPtr item)
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{
int n = 0;
for (Pix p = first(); p; next(p)) if (SymbolConjunctPtrEQ((*this)(p), item)) ++n;
return n;
}
void SymbolConjunctPtrBag::clear()
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{
Pix i = first();
while (i != 0)
{
del((*this)(i));
i = first();
}
}