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