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 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 11 // <string> 12 13 // template <class charT, class traits, class Allocator, class Predicate> 14 // void erase_if(basic_string<charT, traits, Allocator>& c, Predicate pred); 15 16 #include <string> 17 18 #include "test_macros.h" 19 #include "test_allocator.h" 20 #include "min_allocator.h" 21 22 template <class S, class Pred> 23 void 24 test0(S s, Pred p, S expected) 25 { 26 ASSERT_SAME_TYPE(void, decltype(std::erase_if(s, p))); 27 std::erase_if(s, p); 28 LIBCPP_ASSERT(s.__invariants()); 29 assert(s == expected); 30 } 31 32 template <typename S> 33 void test() 34 { 35 auto isA = [](auto ch) { return ch == 'a';}; 36 auto isB = [](auto ch) { return ch == 'b';}; 37 auto isC = [](auto ch) { return ch == 'c';}; 38 auto isD = [](auto ch) { return ch == 'd';}; 39 auto True = [](auto) { return true; }; 40 auto False = [](auto) { return false; }; 41 42 test0(S(""), isA, S("")); 43 44 test0(S("a"), isA, S("")); 45 test0(S("a"), isB, S("a")); 46 47 test0(S("ab"), isA, S("b")); 48 test0(S("ab"), isB, S("a")); 49 test0(S("ab"), isC, S("ab")); 50 test0(S("aa"), isA, S("")); 51 test0(S("aa"), isC, S("aa")); 52 53 test0(S("abc"), isA, S("bc")); 54 test0(S("abc"), isB, S("ac")); 55 test0(S("abc"), isC, S("ab")); 56 test0(S("abc"), isD, S("abc")); 57 58 test0(S("aab"), isA, S("b")); 59 test0(S("aab"), isB, S("aa")); 60 test0(S("aab"), isC, S("aab")); 61 test0(S("abb"), isA, S("bb")); 62 test0(S("abb"), isB, S("a")); 63 test0(S("abb"), isC, S("abb")); 64 test0(S("aaa"), isA, S("")); 65 test0(S("aaa"), isB, S("aaa")); 66 67 test0(S("aba"), False, S("aba")); 68 test0(S("aba"), True, S("")); 69 } 70 71 int main() 72 { 73 test<std::string>(); 74 test<std::basic_string<char, std::char_traits<char>, min_allocator<char>>> (); 75 test<std::basic_string<char, std::char_traits<char>, test_allocator<char>>> (); 76 } 77
