diff options
Diffstat (limited to 'gnu/lib/libg++/g++-include/Set.ccP')
-rw-r--r-- | gnu/lib/libg++/g++-include/Set.ccP | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/gnu/lib/libg++/g++-include/Set.ccP b/gnu/lib/libg++/g++-include/Set.ccP new file mode 100644 index 000000000000..f312aa15cc75 --- /dev/null +++ b/gnu/lib/libg++/g++-include/Set.ccP @@ -0,0 +1,116 @@ +// 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 <builtin.h> +#include "<T>.Set.h" + + +Pix <T>Set::seek(<T&> item) +{ + for (Pix i = first(); i != 0 && !(<T>EQ((*this)(i), item)); next(i)); + return i; +} + +int <T>Set::owns(Pix idx) +{ + if (idx == 0) return 0; + for (Pix i = first(); i; next(i)) if (i == idx) return 1; + return 0; +} + +void <T>Set::clear() +{ + Pix i = first(); + while (i != 0) + { + del((*this)(i)); + i = first(); + } +} + +int <T>Set::contains (<T&> item) +{ + return seek(item) != 0; +} + +int <T>Set::operator <= (<T>Set& b) +{ + if (count > b.count) return 0; + if (count == 0) return 1; + for (Pix i = first(); i; next(i)) if (b.seek((*this)(i)) == 0) return 0; + return 1; +} + +int <T>Set::operator == (<T>Set& b) +{ + int n = count; + if (n != b.count) return 0; + if (n == 0) return 1; + Pix i = first(); + Pix j = b.first(); + while (n-- > 0) + { + if ((b.seek((*this)(i)) == 0) || (seek(b(j)) == 0)) return 0; + next(i); + b.next(j); + } + return 1; +} + +int <T>Set::operator != (<T>Set& b) +{ + return !(*this == b); +} + +void <T>Set::operator |= (<T>Set& b) +{ + if (&b != this) + for (Pix i = b.first(); i; b.next(i)) add(b(i)); +} + +void <T>Set::operator -= (<T>Set& b) +{ + if (&b == this) + clear(); + else + for (Pix i = b.first(); i; b.next(i)) del(b(i)); +} + + +void <T>Set::operator &= (<T>Set& b) +{ + if (&b != this) + { + Pix i = first(); + Pix n = i; + while (i != 0) + { + next(n); + if (b.seek((*this)(i)) == 0) del((*this)(i)); + i = n; + } + } +} + +void <T>Set::error(const char* msg) +{ + (*lib_error_handler)("Set", msg); +} |