forked from OSchip/llvm-project
111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <set>
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// class set
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// size_type erase(const key_type& k);
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#include <set>
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#include <cassert>
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int main()
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{
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{
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typedef std::set<int> M;
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typedef int V;
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typedef M::size_type I;
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V ar[] =
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{
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1,
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2,
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3,
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4,
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5,
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6,
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7,
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8
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};
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M m(ar, ar + sizeof(ar)/sizeof(ar[0]));
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assert(m.size() == 8);
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I i = m.erase(9);
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assert(m.size() == 8);
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assert(i == 0);
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assert(*next(m.begin(), 0) == 1);
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assert(*next(m.begin(), 1) == 2);
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assert(*next(m.begin(), 2) == 3);
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assert(*next(m.begin(), 3) == 4);
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assert(*next(m.begin(), 4) == 5);
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assert(*next(m.begin(), 5) == 6);
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assert(*next(m.begin(), 6) == 7);
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assert(*next(m.begin(), 7) == 8);
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i = m.erase(4);
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assert(m.size() == 7);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 1);
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assert(*next(m.begin(), 1) == 2);
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assert(*next(m.begin(), 2) == 3);
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assert(*next(m.begin(), 3) == 5);
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assert(*next(m.begin(), 4) == 6);
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assert(*next(m.begin(), 5) == 7);
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assert(*next(m.begin(), 6) == 8);
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i = m.erase(1);
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assert(m.size() == 6);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 2);
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assert(*next(m.begin(), 1) == 3);
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assert(*next(m.begin(), 2) == 5);
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assert(*next(m.begin(), 3) == 6);
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assert(*next(m.begin(), 4) == 7);
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assert(*next(m.begin(), 5) == 8);
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i = m.erase(8);
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assert(m.size() == 5);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 2);
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assert(*next(m.begin(), 1) == 3);
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assert(*next(m.begin(), 2) == 5);
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assert(*next(m.begin(), 3) == 6);
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assert(*next(m.begin(), 4) == 7);
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i = m.erase(3);
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assert(m.size() == 4);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 2);
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assert(*next(m.begin(), 1) == 5);
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assert(*next(m.begin(), 2) == 6);
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assert(*next(m.begin(), 3) == 7);
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i = m.erase(6);
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assert(m.size() == 3);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 2);
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assert(*next(m.begin(), 1) == 5);
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assert(*next(m.begin(), 2) == 7);
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i = m.erase(7);
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assert(m.size() == 2);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 2);
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assert(*next(m.begin(), 1) == 5);
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i = m.erase(2);
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assert(m.size() == 1);
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assert(i == 1);
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assert(*next(m.begin(), 0) == 5);
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i = m.erase(5);
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assert(m.size() == 0);
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assert(i == 1);
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}
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}
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