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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 25_algorithms / fill_n / 1.cc

// 2007-01-19  Paolo Carlini  <pcarlini@suse.de>

// Copyright (C) 2007-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, 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 General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// 25.2.5 [lib.alg.fill] Fill_n.

#include <algorithm>
#include <vector>
#include <testsuite_hooks.h>
#include <testsuite_iterators.h>

// Non-scalar type to exercise partial specialization of fill_n implementation.
struct Value
{
  Value(int n) : n(n) { }

  operator int() const { return n; }

private:
  int n;
};

void
test01()
{
  using namespace std;
  using __gnu_test::test_container;
  using __gnu_test::output_iterator_wrapper;

  const int A1[] = {3, 3, 3, 3, 3, 3, 3, 3, 3, 3};
  const int N1 = sizeof(A1) / sizeof(int);
  
  int i1[N1];
  test_container<int, output_iterator_wrapper> c1(i1, i1 + N1);
  fill_n(c1.begin(), N1, 3);
  VERIFY( equal(i1, i1 + N1, A1) );

  vector<int> v1(N1);
  fill_n(v1.begin(), N1, Value(3));
  VERIFY( equal(v1.begin(), v1.end(), A1) );

  const char A2[] = {'\3', '\3', '\3', '\3', '\3',
		     '\3', '\3', '\3', '\3', '\3'};
  const int N2 = sizeof(A2) / sizeof(char);

  char i2[N2];
  fill_n(i2, N2, '\3');
  VERIFY( equal(i2, i2 + N2, A2) );

  vector<char> v2(N2);
  fill_n(v2.begin(), N2, '\3');
  VERIFY( equal(v2.begin(), v2.end(), A2) );

#ifdef _GLIBCXX_USE_WCHAR_T
  const wchar_t A3[] = {L'\3', L'\3', L'\3', L'\3', L'\3',
			L'\3', L'\3', L'\3', L'\3', L'\3'};
  const int N3 = sizeof(A3) / sizeof(wchar_t);

  wchar_t i3[N3];
  fill_n(i3, N3, L'\3');
  VERIFY( equal(i3, i3 + N3, A3) );

  vector<wchar_t> v3(N3);
  fill_n(v3.begin(), N3, L'\3');
  VERIFY( equal(v3.begin(), v3.end(), A3) );
#endif
}

int
main()
{
  test01();
  return 0;
}