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 // <deque> 11 12 // void pop_back() 13 14 #include <deque> 15 #include <cassert> 16 17 #include "min_allocator.h" 18 19 template <class C> 20 C 21 make(int size, int start = 0 ) 22 { 23 const int b = 4096 / sizeof(int); 24 int init = 0; 25 if (start > 0) 26 { 27 init = (start+1) / b + ((start+1) % b != 0); 28 init *= b; 29 --init; 30 } 31 C c(init, 0); 32 for (int i = 0; i < init-start; ++i) 33 c.pop_back(); 34 for (int i = 0; i < size; ++i) 35 c.push_back(i); 36 for (int i = 0; i < start; ++i) 37 c.pop_front(); 38 return c; 39 }; 40 41 template <class C> 42 void 43 test(C& c1) 44 { 45 typedef typename C::iterator I; 46 std::size_t c1_osize = c1.size(); 47 c1.pop_back(); 48 assert(c1.size() == c1_osize - 1); 49 assert(distance(c1.begin(), c1.end()) == c1.size()); 50 I i = c1.begin(); 51 for (int j = 0; j < c1.size(); ++j, ++i) 52 assert(*i == j); 53 } 54 55 template <class C> 56 void 57 testN(int start, int N) 58 { 59 if (N != 0) 60 { 61 C c1 = make<C>(N, start); 62 test(c1); 63 } 64 } 65 66 int main() 67 { 68 { 69 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049}; 70 const int N = sizeof(rng)/sizeof(rng[0]); 71 for (int i = 0; i < N; ++i) 72 for (int j = 0; j < N; ++j) 73 testN<std::deque<int> >(rng[i], rng[j]); 74 } 75 #if __cplusplus >= 201103L 76 { 77 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049}; 78 const int N = sizeof(rng)/sizeof(rng[0]); 79 for (int i = 0; i < N; ++i) 80 for (int j = 0; j < N; ++j) 81 testN<std::deque<int, min_allocator<int>> >(rng[i], rng[j]); 82 } 83 #endif 84 } 85
