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 // UNSUPPORTED: c++98, c++03 11 12 // <deque> 13 14 // void push_front(value_type&& v); 15 16 #include <deque> 17 #include <cassert> 18 #include <cstddef> 19 20 #include "MoveOnly.h" 21 #include "min_allocator.h" 22 23 24 template <class C> 25 C 26 make(int size, int start = 0 ) 27 { 28 const int b = 4096 / sizeof(int); 29 int init = 0; 30 if (start > 0) 31 { 32 init = (start+1) / b + ((start+1) % b != 0); 33 init *= b; 34 --init; 35 } 36 C c(init); 37 for (int i = 0; i < init-start; ++i) 38 c.pop_back(); 39 for (int i = 0; i < size; ++i) 40 c.push_back(MoveOnly(i)); 41 for (int i = 0; i < start; ++i) 42 c.pop_front(); 43 return c; 44 } 45 46 template <class C> 47 void 48 test(C& c1, int x) 49 { 50 typedef typename C::iterator I; 51 std::size_t c1_osize = c1.size(); 52 c1.push_front(MoveOnly(x)); 53 assert(c1.size() == c1_osize + 1); 54 assert(static_cast<std::size_t>(distance(c1.begin(), c1.end())) == c1.size()); 55 I i = c1.begin(); 56 assert(*i == MoveOnly(x)); 57 ++i; 58 for (int j = 0; static_cast<std::size_t>(j) < c1_osize; ++j, ++i) 59 assert(*i == MoveOnly(j)); 60 } 61 62 template <class C> 63 void 64 testN(int start, int N) 65 { 66 C c1 = make<C>(N, start); 67 test(c1, -10); 68 } 69 70 71 int main() 72 { 73 { 74 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049}; 75 const int N = sizeof(rng)/sizeof(rng[0]); 76 for (int i = 0; i < N; ++i) 77 for (int j = 0; j < N; ++j) 78 testN<std::deque<MoveOnly> >(rng[i], rng[j]); 79 } 80 { 81 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049}; 82 const int N = sizeof(rng)/sizeof(rng[0]); 83 for (int i = 0; i < N; ++i) 84 for (int j = 0; j < N; ++j) 85 testN<std::deque<MoveOnly, min_allocator<MoveOnly>> >(rng[i], rng[j]); 86 } 87 } 88
