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 // <string> 11 12 // void shrink_to_fit(); 13 14 #include <string> 15 #include <cassert> 16 17 template <class S> 18 void 19 test(S s) 20 { 21 typename S::size_type old_cap = s.capacity(); 22 S s0 = s; 23 s.shrink_to_fit(); 24 assert(s.__invariants()); 25 assert(s == s0); 26 assert(s.capacity() <= old_cap); 27 assert(s.capacity() >= s.size()); 28 } 29 30 int main() 31 { 32 typedef std::string S; 33 S s; 34 test(s); 35 36 s.assign(10, 'a'); 37 s.erase(5); 38 test(s); 39 40 s.assign(100, 'a'); 41 s.erase(50); 42 test(s); 43 } 44
