| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14) |
| |
| // <string_view> |
| |
| // constexpr size_type find_last_of(charT c, size_type pos = npos) const; |
| |
| #include <string_view> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "constexpr_char_traits.h" |
| |
| template <class S> |
| void test(const S& s, typename S::value_type c, typename S::size_type pos, typename S::size_type x) { |
| LIBCPP_ASSERT_NOEXCEPT(s.find_last_of(c, pos)); |
| assert(s.find_last_of(c, pos) == x); |
| if (x != S::npos) |
| assert(x <= pos && x < s.size()); |
| } |
| |
| template <class S> |
| void test(const S& s, typename S::value_type c, typename S::size_type x) { |
| LIBCPP_ASSERT_NOEXCEPT(s.find_last_of(c)); |
| assert(s.find_last_of(c) == x); |
| if (x != S::npos) |
| assert(x < s.size()); |
| } |
| |
| int main(int, char**) { |
| { |
| typedef std::string_view S; |
| test(S(""), 'm', 0, S::npos); |
| test(S(""), 'm', 1, S::npos); |
| test(S("kitcj"), 'm', 0, S::npos); |
| test(S("qkamf"), 'm', 1, S::npos); |
| test(S("nhmko"), 'm', 2, 2); |
| test(S("tpsaf"), 'm', 4, S::npos); |
| test(S("lahfb"), 'm', 5, S::npos); |
| test(S("irkhs"), 'm', 6, S::npos); |
| test(S("gmfhdaipsr"), 'm', 0, S::npos); |
| test(S("kantesmpgj"), 'm', 1, S::npos); |
| test(S("odaftiegpm"), 'm', 5, S::npos); |
| test(S("oknlrstdpi"), 'm', 9, S::npos); |
| test(S("eolhfgpjqk"), 'm', 10, S::npos); |
| test(S("pcdrofikas"), 'm', 11, S::npos); |
| test(S("nbatdlmekrgcfqsophij"), 'm', 0, S::npos); |
| test(S("bnrpehidofmqtcksjgla"), 'm', 1, S::npos); |
| test(S("jdmciepkaqgotsrfnhlb"), 'm', 10, 2); |
| test(S("jtdaefblsokrmhpgcnqi"), 'm', 19, 12); |
| test(S("hkbgspofltajcnedqmri"), 'm', 20, 17); |
| test(S("oselktgbcapndfjihrmq"), 'm', 21, 18); |
| |
| test(S(""), 'm', S::npos); |
| test(S("csope"), 'm', S::npos); |
| test(S("gfsmthlkon"), 'm', 3); |
| test(S("laenfsbridchgotmkqpj"), 'm', 15); |
| } |
| |
| #if TEST_STD_VER > 11 |
| { |
| typedef std::basic_string_view<char, constexpr_char_traits<char>> SV; |
| constexpr SV sv1; |
| constexpr SV sv2{"abcde", 5}; |
| |
| static_assert(sv1.find_last_of('i', 0) == SV::npos, ""); |
| static_assert(sv1.find_last_of('i', 1) == SV::npos, ""); |
| static_assert(sv2.find_last_of('a', 0) == 0, ""); |
| static_assert(sv2.find_last_of('a', 1) == 0, ""); |
| static_assert(sv2.find_last_of('e', 5) == 4, ""); |
| } |
| #endif |
| |
| return 0; |
| } |