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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string_view>
// constexpr size_type find(const basic_string_view& str, size_type pos = 0) const;
#include <experimental/string_view>
#include <cassert>
#include "constexpr_char_traits.hpp"
template <class S>
void
test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
{
assert(s.find(str, pos) == x);
if (x != S::npos)
assert(pos <= x && x + str.size() <= s.size());
}
template <class S>
void
test(const S& s, const S& str, typename S::size_type x)
{
assert(s.find(str) == x);
if (x != S::npos)
assert(0 <= x && x + str.size() <= s.size());
}
template <class S>
void test0()
{
test(S(""), S(""), 0, 0);
test(S(""), S("abcde"), 0, S::npos);
test(S(""), S("abcdeabcde"), 0, S::npos);
test(S(""), S("abcdeabcdeabcdeabcde"), 0, S::npos);
test(S(""), S(""), 1, S::npos);
test(S(""), S("abcde"), 1, S::npos);
test(S(""), S("abcdeabcde"), 1, S::npos);
test(S(""), S("abcdeabcdeabcdeabcde"), 1, S::npos);
test(S("abcde"), S(""), 0, 0);
test(S("abcde"), S("abcde"), 0, 0);
test(S("abcde"), S("abcdeabcde"), 0, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
test(S("abcde"), S(""), 1, 1);
test(S("abcde"), S("abcde"), 1, S::npos);
test(S("abcde"), S("abcdeabcde"), 1, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
test(S("abcde"), S(""), 2, 2);
test(S("abcde"), S("abcde"), 2, S::npos);
test(S("abcde"), S("abcdeabcde"), 2, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 2, S::npos);
test(S("abcde"), S(""), 4, 4);
test(S("abcde"), S("abcde"), 4, S::npos);
test(S("abcde"), S("abcdeabcde"), 4, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 4, S::npos);
test(S("abcde"), S(""), 5, 5);
test(S("abcde"), S("abcde"), 5, S::npos);
test(S("abcde"), S("abcdeabcde"), 5, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
test(S("abcde"), S(""), 6, S::npos);
test(S("abcde"), S("abcde"), 6, S::npos);
test(S("abcde"), S("abcdeabcde"), 6, S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), 6, S::npos);
test(S("abcdeabcde"), S(""), 0, 0);
test(S("abcdeabcde"), S("abcde"), 0, 0);
test(S("abcdeabcde"), S("abcdeabcde"), 0, 0);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
test(S("abcdeabcde"), S(""), 1, 1);
test(S("abcdeabcde"), S("abcde"), 1, 5);
test(S("abcdeabcde"), S("abcdeabcde"), 1, S::npos);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
test(S("abcdeabcde"), S(""), 5, 5);
test(S("abcdeabcde"), S("abcde"), 5, 5);
test(S("abcdeabcde"), S("abcdeabcde"), 5, S::npos);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
test(S("abcdeabcde"), S(""), 9, 9);
test(S("abcdeabcde"), S("abcde"), 9, S::npos);
test(S("abcdeabcde"), S("abcdeabcde"), 9, S::npos);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 9, S::npos);
test(S("abcdeabcde"), S(""), 10, 10);
test(S("abcdeabcde"), S("abcde"), 10, S::npos);
test(S("abcdeabcde"), S("abcdeabcde"), 10, S::npos);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
test(S("abcdeabcde"), S(""), 11, S::npos);
test(S("abcdeabcde"), S("abcde"), 11, S::npos);
test(S("abcdeabcde"), S("abcdeabcde"), 11, S::npos);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 11, S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 0, 0);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0, 0);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0, 0);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, 0);
test(S("abcdeabcdeabcdeabcde"), S(""), 1, 1);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 1, 5);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 1, 5);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 10, 10);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 10, 10);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10, 10);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 19, 19);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 19, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 19, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 19, S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 20, 20);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 20, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 20, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 20, S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 21, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 21, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 21, S::npos);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 21, S::npos);
}
template <class S>
void test1()
{
test(S(""), S(""), 0);
test(S(""), S("abcde"), S::npos);
test(S(""), S("abcdeabcde"), S::npos);
test(S(""), S("abcdeabcdeabcdeabcde"), S::npos);
test(S("abcde"), S(""), 0);
test(S("abcde"), S("abcde"), 0);
test(S("abcde"), S("abcdeabcde"), S::npos);
test(S("abcde"), S("abcdeabcdeabcdeabcde"), S::npos);
test(S("abcdeabcde"), S(""), 0);
test(S("abcdeabcde"), S("abcde"), 0);
test(S("abcdeabcde"), S("abcdeabcde"), 0);
test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), S::npos);
test(S("abcdeabcdeabcdeabcde"), S(""), 0);
test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0);
test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0);
}
int main()
{
{
typedef std::experimental::string_view S;
test0<S>();
test1<S>();
}
#if _LIBCPP_STD_VER > 11
{
typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
constexpr SV sv1;
constexpr SV sv2 { "abcde", 5 };
static_assert (sv1.find(sv1) == 0, "" );
static_assert (sv1.find(sv2) == SV::npos, "" );
static_assert (sv2.find(sv1) == 0, "" );
static_assert (sv2.find(sv2) == 0, "" );
static_assert (sv2.find(sv2, 1 ) == SV::npos, "" );
}
#endif
}
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