libstdc++-v3/testsuite/25_algorithms/fill_n/87982.cc

   1 // Copyright (C) 2019-2023 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run }
  19
  20 #include <algorithm>
  21 #include <testsuite_hooks.h>
  22
  23 int a[4] = { 0, 1, 2, 3 };
  24 int g;
  25 enum E { e2 = 2 };
  26
  27 struct Num
  28 {
  29   char val;
  30
  31   operator char() const { return val; }
  32
  33 private:
  34   void operator+() const;
  35   void operator+(int) const;
  36   void operator+(Num) const;
  37   void operator<(int) const;
  38   void operator>(int) const;
  39   void operator<=(int) const;
  40   void operator>=(int) const;
  41   void operator==(int) const;
  42   void operator!=(int) const;
  43 };
  44
  45 void
  46 test01()
  47 {
  48   int* p;
  49
  50   g = -1;
  51   p = std::fill_n(a, true, g); // bool as Size
  52   VERIFY( p == a+1 );
  53   VERIFY( a[0] == g );
  54   VERIFY( a[1] == 1 );
  55   VERIFY( a[2] == 2 );
  56   VERIFY( a[3] == 3 );
  57
  58   g = -2;
  59   p = std::fill_n(a, e2, g); // enumeration type as Size
  60   VERIFY( p == a+2 );
  61   VERIFY( a[0] == g );
  62   VERIFY( a[1] == g );
  63   VERIFY( a[2] == 2 );
  64   VERIFY( a[3] == 3 );
  65
  66   g = -3;
  67   p = std::fill_n(a, 3.5, g); // floating point type as Size
  68   VERIFY( p == a+3 );
  69   VERIFY( a[0] == g );
  70   VERIFY( a[1] == g );
  71   VERIFY( a[2] == g );
  72   VERIFY( a[3] == 3 );
  73
  74   g = -4;
  75   Num n = { 3 };
  76   p = std::fill_n(a, n, g); // non-scalar type as Size
  77   VERIFY( p == a+3 );
  78   VERIFY( a[0] == g );
  79   VERIFY( a[1] == g );
  80   VERIFY( a[2] == g );
  81   VERIFY( a[3] == 3 );
  82 }
  83
  84 int main()
  85 {
  86   test01();
  87 }