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 // XFAIL: libcpp-no-exceptions 11 // <string> 12 13 // void resize(size_type n); 14 15 #include <string> 16 #include <stdexcept> 17 #include <cassert> 18 19 #include "test_macros.h" 20 #include "min_allocator.h" 21 22 template <class S> 23 void 24 test(S s, typename S::size_type n, S expected) 25 { 26 try 27 { 28 s.resize(n); 29 LIBCPP_ASSERT(s.__invariants()); 30 assert(n <= s.max_size()); 31 assert(s == expected); 32 } 33 catch (std::length_error&) 34 { 35 assert(n > s.max_size()); 36 } 37 } 38 39 int main() 40 { 41 { 42 typedef std::string S; 43 test(S(), 0, S()); 44 test(S(), 1, S(1, '\0')); 45 test(S(), 10, S(10, '\0')); 46 test(S(), 100, S(100, '\0')); 47 test(S("12345"), 0, S()); 48 test(S("12345"), 2, S("12")); 49 test(S("12345"), 5, S("12345")); 50 test(S("12345"), 15, S("12345\0\0\0\0\0\0\0\0\0\0", 15)); 51 test(S("12345678901234567890123456789012345678901234567890"), 0, S()); 52 test(S("12345678901234567890123456789012345678901234567890"), 10, 53 S("1234567890")); 54 test(S("12345678901234567890123456789012345678901234567890"), 50, 55 S("12345678901234567890123456789012345678901234567890")); 56 test(S("12345678901234567890123456789012345678901234567890"), 60, 57 S("12345678901234567890123456789012345678901234567890\0\0\0\0\0\0\0\0\0\0", 60)); 58 test(S(), S::npos, S("not going to happen")); 59 } 60 #if TEST_STD_VER >= 11 61 { 62 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 63 test(S(), 0, S()); 64 test(S(), 1, S(1, '\0')); 65 test(S(), 10, S(10, '\0')); 66 test(S(), 100, S(100, '\0')); 67 test(S("12345"), 0, S()); 68 test(S("12345"), 2, S("12")); 69 test(S("12345"), 5, S("12345")); 70 test(S("12345"), 15, S("12345\0\0\0\0\0\0\0\0\0\0", 15)); 71 test(S("12345678901234567890123456789012345678901234567890"), 0, S()); 72 test(S("12345678901234567890123456789012345678901234567890"), 10, 73 S("1234567890")); 74 test(S("12345678901234567890123456789012345678901234567890"), 50, 75 S("12345678901234567890123456789012345678901234567890")); 76 test(S("12345678901234567890123456789012345678901234567890"), 60, 77 S("12345678901234567890123456789012345678901234567890\0\0\0\0\0\0\0\0\0\0", 60)); 78 test(S(), S::npos, S("not going to happen")); 79 } 80 #endif 81 } 82