fill.pass.cpp (1771B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <algorithm> 11 12 // template<ForwardIterator Iter, class T> 13 // requires OutputIterator<Iter, const T&> 14 // constexpr void // constexpr after C++17 15 // fill(Iter first, Iter last, const T& value); 16 17 #include <algorithm> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "test_iterators.h" 22 23 #if TEST_STD_VER > 17 24 TEST_CONSTEXPR bool test_constexpr() { 25 int ia[] = {0, 1, 2, 3, 4}; 26 27 std::fill(std::begin(ia), std::end(ia), 5); 28 29 return std::all_of(std::begin(ia), std::end(ia), [](int a) {return a == 5; }) 30 ; 31 } 32 #endif 33 34 template <class Iter> 35 void 36 test_char() 37 { 38 const unsigned n = 4; 39 char ca[n] = {0}; 40 std::fill(Iter(ca), Iter(ca+n), char(1)); 41 assert(ca[0] == 1); 42 assert(ca[1] == 1); 43 assert(ca[2] == 1); 44 assert(ca[3] == 1); 45 } 46 47 template <class Iter> 48 void 49 test_int() 50 { 51 const unsigned n = 4; 52 int ia[n] = {0}; 53 std::fill(Iter(ia), Iter(ia+n), 1); 54 assert(ia[0] == 1); 55 assert(ia[1] == 1); 56 assert(ia[2] == 1); 57 assert(ia[3] == 1); 58 } 59 60 int main() 61 { 62 test_char<forward_iterator<char*> >(); 63 test_char<bidirectional_iterator<char*> >(); 64 test_char<random_access_iterator<char*> >(); 65 test_char<char*>(); 66 67 test_int<forward_iterator<int*> >(); 68 test_int<bidirectional_iterator<int*> >(); 69 test_int<random_access_iterator<int*> >(); 70 test_int<int*>(); 71 72 #if TEST_STD_VER > 17 73 static_assert(test_constexpr()); 74 #endif 75 }