1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03 10 11 // <deque> 12 13 // void push_back(value_type&& v); 14 // void pop_back(); 15 // void pop_front(); 16 17 #include <deque> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "MoveOnly.h" 22 #include "min_allocator.h" 23 24 25 template <class C> 26 C 27 make(int size, int start = 0 ) 28 { 29 const int b = 4096 / sizeof(int); 30 int init = 0; 31 if (start > 0) 32 { 33 init = (start+1) / b + ((start+1) % b != 0); 34 init *= b; 35 --init; 36 } 37 C c(init); 38 for (int i = 0; i < init-start; ++i) 39 c.pop_back(); 40 for (int i = 0; i < size; ++i) 41 c.push_back(MoveOnly(i)); 42 for (int i = 0; i < start; ++i) 43 c.pop_front(); 44 return c; 45 } 46 47 template <class C> 48 void test(int size) 49 { 50 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049}; 51 const int N = sizeof(rng)/sizeof(rng[0]); 52 for (int j = 0; j < N; ++j) 53 { 54 C c = make<C>(size, rng[j]); 55 typename C::const_iterator it = c.begin(); 56 for (int i = 0; i < size; ++i, (void) ++it) 57 assert(*it == MoveOnly(i)); 58 } 59 } 60 61 62 int main(int, char**) 63 { 64 { 65 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096}; 66 const int N = sizeof(rng)/sizeof(rng[0]); 67 for (int j = 0; j < N; ++j) 68 test<std::deque<MoveOnly> >(rng[j]); 69 } 70 { 71 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096}; 72 const int N = sizeof(rng)/sizeof(rng[0]); 73 for (int j = 0; j < N; ++j) 74 test<std::deque<MoveOnly, min_allocator<MoveOnly>> >(rng[j]); 75 } 76 77 return 0; 78 } 79