| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <string> |
| |
| // basic_string<charT,traits,Allocator>& |
| // assign(const basic_string<charT,traits>& str, size_type pos, size_type n=npos); |
| // the =npos was added for C++14 |
| |
| // When back-deploying to macosx10.7, the RTTI for exception classes |
| // incorrectly provided by libc++.dylib is mixed with the one in |
| // libc++abi.dylib and exceptions are not caught properly. |
| // XFAIL: with_system_cxx_lib=macosx10.7 |
| |
| #include <string> |
| #include <stdexcept> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "min_allocator.h" |
| |
| template <class S> |
| void |
| test(S s, S str, typename S::size_type pos, typename S::size_type n, S expected) |
| { |
| if (pos <= str.size()) |
| { |
| s.assign(str, pos, n); |
| LIBCPP_ASSERT(s.__invariants()); |
| assert(s == expected); |
| } |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| else |
| { |
| try |
| { |
| s.assign(str, pos, n); |
| assert(false); |
| } |
| catch (std::out_of_range&) |
| { |
| assert(pos > str.size()); |
| } |
| } |
| #endif |
| } |
| |
| template <class S> |
| void |
| test_npos(S s, S str, typename S::size_type pos, S expected) |
| { |
| if (pos <= str.size()) |
| { |
| s.assign(str, pos); |
| LIBCPP_ASSERT(s.__invariants()); |
| assert(s == expected); |
| } |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| else |
| { |
| try |
| { |
| s.assign(str, pos); |
| assert(false); |
| } |
| catch (std::out_of_range&) |
| { |
| assert(pos > str.size()); |
| } |
| } |
| #endif |
| } |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::string S; |
| test(S(), S(), 0, 0, S()); |
| test(S(), S(), 1, 0, S()); |
| test(S(), S("12345"), 0, 3, S("123")); |
| test(S(), S("12345"), 1, 4, S("2345")); |
| test(S(), S("12345"), 3, 15, S("45")); |
| test(S(), S("12345"), 5, 15, S("")); |
| test(S(), S("12345"), 6, 15, S("not happening")); |
| test(S(), S("12345678901234567890"), 0, 0, S()); |
| test(S(), S("12345678901234567890"), 1, 1, S("2")); |
| test(S(), S("12345678901234567890"), 2, 3, S("345")); |
| test(S(), S("12345678901234567890"), 12, 13, S("34567890")); |
| test(S(), S("12345678901234567890"), 21, 13, S("not happening")); |
| |
| test(S("12345"), S(), 0, 0, S()); |
| test(S("12345"), S("12345"), 2, 2, S("34")); |
| test(S("12345"), S("1234567890"), 0, 100, S("1234567890")); |
| |
| test(S("12345678901234567890"), S(), 0, 0, S()); |
| test(S("12345678901234567890"), S("12345"), 1, 3, S("234")); |
| test(S("12345678901234567890"), S("12345678901234567890"), 5, 10, |
| S("6789012345")); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; |
| test(S(), S(), 0, 0, S()); |
| test(S(), S(), 1, 0, S()); |
| test(S(), S("12345"), 0, 3, S("123")); |
| test(S(), S("12345"), 1, 4, S("2345")); |
| test(S(), S("12345"), 3, 15, S("45")); |
| test(S(), S("12345"), 5, 15, S("")); |
| test(S(), S("12345"), 6, 15, S("not happening")); |
| test(S(), S("12345678901234567890"), 0, 0, S()); |
| test(S(), S("12345678901234567890"), 1, 1, S("2")); |
| test(S(), S("12345678901234567890"), 2, 3, S("345")); |
| test(S(), S("12345678901234567890"), 12, 13, S("34567890")); |
| test(S(), S("12345678901234567890"), 21, 13, S("not happening")); |
| |
| test(S("12345"), S(), 0, 0, S()); |
| test(S("12345"), S("12345"), 2, 2, S("34")); |
| test(S("12345"), S("1234567890"), 0, 100, S("1234567890")); |
| |
| test(S("12345678901234567890"), S(), 0, 0, S()); |
| test(S("12345678901234567890"), S("12345"), 1, 3, S("234")); |
| test(S("12345678901234567890"), S("12345678901234567890"), 5, 10, |
| S("6789012345")); |
| } |
| #endif |
| { |
| typedef std::string S; |
| test_npos(S(), S(), 0, S()); |
| test_npos(S(), S(), 1, S()); |
| test_npos(S(), S("12345"), 0, S("12345")); |
| test_npos(S(), S("12345"), 1, S("2345")); |
| test_npos(S(), S("12345"), 3, S("45")); |
| test_npos(S(), S("12345"), 5, S("")); |
| test_npos(S(), S("12345"), 6, S("not happening")); |
| } |
| |
| return 0; |
| } |