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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>
// basic_string<charT,traits,Allocator>&
// erase(size_type pos = 0, size_type n = npos);
#include <string>
#include <stdexcept>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void
test(S s, typename S::size_type pos, typename S::size_type n, S expected)
{
const typename S::size_type old_size = s.size();
S s0 = s;
if (pos <= old_size)
{
s.erase(pos, n);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
s.erase(pos, n);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos > old_size);
assert(s == s0);
}
}
#endif
}
template <class S>
void
test(S s, typename S::size_type pos, S expected)
{
const typename S::size_type old_size = s.size();
S s0 = s;
if (pos <= old_size)
{
s.erase(pos);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
s.erase(pos);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos > old_size);
assert(s == s0);
}
}
#endif
}
template <class S>
void
test(S s, S expected)
{
s.erase();
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
int main()
{
{
typedef std::string S;
test(S(""), 0, 0, S(""));
test(S(""), 0, 1, S(""));
test(S(""), 1, 0, S("can't happen"));
test(S("abcde"), 0, 0, S("abcde"));
test(S("abcde"), 0, 1, S("bcde"));
test(S("abcde"), 0, 2, S("cde"));
test(S("abcde"), 0, 4, S("e"));
test(S("abcde"), 0, 5, S(""));
test(S("abcde"), 0, 6, S(""));
test(S("abcde"), 1, 0, S("abcde"));
test(S("abcde"), 1, 1, S("acde"));
test(S("abcde"), 1, 2, S("ade"));
test(S("abcde"), 1, 3, S("ae"));
test(S("abcde"), 1, 4, S("a"));
test(S("abcde"), 1, 5, S("a"));
test(S("abcde"), 2, 0, S("abcde"));
test(S("abcde"), 2, 1, S("abde"));
test(S("abcde"), 2, 2, S("abe"));
test(S("abcde"), 2, 3, S("ab"));
test(S("abcde"), 2, 4, S("ab"));
test(S("abcde"), 4, 0, S("abcde"));
test(S("abcde"), 4, 1, S("abcd"));
test(S("abcde"), 4, 2, S("abcd"));
test(S("abcde"), 5, 0, S("abcde"));
test(S("abcde"), 5, 1, S("abcde"));
test(S("abcde"), 6, 0, S("can't happen"));
test(S("abcdefghij"), 0, 0, S("abcdefghij"));
test(S("abcdefghij"), 0, 1, S("bcdefghij"));
test(S("abcdefghij"), 0, 5, S("fghij"));
test(S("abcdefghij"), 0, 9, S("j"));
test(S("abcdefghij"), 0, 10, S(""));
test(S("abcdefghij"), 0, 11, S(""));
test(S("abcdefghij"), 1, 0, S("abcdefghij"));
test(S("abcdefghij"), 1, 1, S("acdefghij"));
test(S("abcdefghij"), 1, 4, S("afghij"));
test(S("abcdefghij"), 1, 8, S("aj"));
test(S("abcdefghij"), 1, 9, S("a"));
test(S("abcdefghij"), 1, 10, S("a"));
test(S("abcdefghij"), 5, 0, S("abcdefghij"));
test(S("abcdefghij"), 5, 1, S("abcdeghij"));
test(S("abcdefghij"), 5, 2, S("abcdehij"));
test(S("abcdefghij"), 5, 4, S("abcdej"));
test(S("abcdefghij"), 5, 5, S("abcde"));
test(S("abcdefghij"), 5, 6, S("abcde"));
test(S("abcdefghij"), 9, 0, S("abcdefghij"));
test(S("abcdefghij"), 9, 1, S("abcdefghi"));
test(S("abcdefghij"), 9, 2, S("abcdefghi"));
test(S("abcdefghij"), 10, 0, S("abcdefghij"));
test(S("abcdefghij"), 10, 1, S("abcdefghij"));
test(S("abcdefghij"), 11, 0, S("can't happen"));
test(S("abcdefghijklmnopqrst"), 0, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 1, S("bcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 10, S("klmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 19, S("t"));
test(S("abcdefghijklmnopqrst"), 0, 20, S(""));
test(S("abcdefghijklmnopqrst"), 0, 21, S(""));
test(S("abcdefghijklmnopqrst"), 1, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 1, S("acdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 9, S("aklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 18, S("at"));
test(S("abcdefghijklmnopqrst"), 1, 19, S("a"));
test(S("abcdefghijklmnopqrst"), 1, 20, S("a"));
test(S("abcdefghijklmnopqrst"), 10, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 10, 1, S("abcdefghijlmnopqrst"));
test(S("abcdefghijklmnopqrst"), 10, 5, S("abcdefghijpqrst"));
test(S("abcdefghijklmnopqrst"), 10, 9, S("abcdefghijt"));
test(S("abcdefghijklmnopqrst"), 10, 10, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 10, 11, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 19, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 19, 1, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 19, 2, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 20, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 20, 1, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 21, 0, S("can't happen"));
test(S(""), 0, S(""));
test(S(""), 1, S("can't happen"));
test(S("abcde"), 0, S(""));
test(S("abcde"), 1, S("a"));
test(S("abcde"), 2, S("ab"));
test(S("abcde"), 4, S("abcd"));
test(S("abcde"), 5, S("abcde"));
test(S("abcde"), 6, S("can't happen"));
test(S("abcdefghij"), 0, S(""));
test(S("abcdefghij"), 1, S("a"));
test(S("abcdefghij"), 5, S("abcde"));
test(S("abcdefghij"), 9, S("abcdefghi"));
test(S("abcdefghij"), 10, S("abcdefghij"));
test(S("abcdefghij"), 11, S("can't happen"));
test(S("abcdefghijklmnopqrst"), 0, S(""));
test(S("abcdefghijklmnopqrst"), 1, S("a"));
test(S("abcdefghijklmnopqrst"), 10, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 19, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 20, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 21, S("can't happen"));
test(S(""), S(""));
test(S("abcde"), S(""));
test(S("abcdefghij"), S(""));
test(S("abcdefghijklmnopqrst"), S(""));
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S(""), 0, 0, S(""));
test(S(""), 0, 1, S(""));
test(S(""), 1, 0, S("can't happen"));
test(S("abcde"), 0, 0, S("abcde"));
test(S("abcde"), 0, 1, S("bcde"));
test(S("abcde"), 0, 2, S("cde"));
test(S("abcde"), 0, 4, S("e"));
test(S("abcde"), 0, 5, S(""));
test(S("abcde"), 0, 6, S(""));
test(S("abcde"), 1, 0, S("abcde"));
test(S("abcde"), 1, 1, S("acde"));
test(S("abcde"), 1, 2, S("ade"));
test(S("abcde"), 1, 3, S("ae"));
test(S("abcde"), 1, 4, S("a"));
test(S("abcde"), 1, 5, S("a"));
test(S("abcde"), 2, 0, S("abcde"));
test(S("abcde"), 2, 1, S("abde"));
test(S("abcde"), 2, 2, S("abe"));
test(S("abcde"), 2, 3, S("ab"));
test(S("abcde"), 2, 4, S("ab"));
test(S("abcde"), 4, 0, S("abcde"));
test(S("abcde"), 4, 1, S("abcd"));
test(S("abcde"), 4, 2, S("abcd"));
test(S("abcde"), 5, 0, S("abcde"));
test(S("abcde"), 5, 1, S("abcde"));
test(S("abcde"), 6, 0, S("can't happen"));
test(S("abcdefghij"), 0, 0, S("abcdefghij"));
test(S("abcdefghij"), 0, 1, S("bcdefghij"));
test(S("abcdefghij"), 0, 5, S("fghij"));
test(S("abcdefghij"), 0, 9, S("j"));
test(S("abcdefghij"), 0, 10, S(""));
test(S("abcdefghij"), 0, 11, S(""));
test(S("abcdefghij"), 1, 0, S("abcdefghij"));
test(S("abcdefghij"), 1, 1, S("acdefghij"));
test(S("abcdefghij"), 1, 4, S("afghij"));
test(S("abcdefghij"), 1, 8, S("aj"));
test(S("abcdefghij"), 1, 9, S("a"));
test(S("abcdefghij"), 1, 10, S("a"));
test(S("abcdefghij"), 5, 0, S("abcdefghij"));
test(S("abcdefghij"), 5, 1, S("abcdeghij"));
test(S("abcdefghij"), 5, 2, S("abcdehij"));
test(S("abcdefghij"), 5, 4, S("abcdej"));
test(S("abcdefghij"), 5, 5, S("abcde"));
test(S("abcdefghij"), 5, 6, S("abcde"));
test(S("abcdefghij"), 9, 0, S("abcdefghij"));
test(S("abcdefghij"), 9, 1, S("abcdefghi"));
test(S("abcdefghij"), 9, 2, S("abcdefghi"));
test(S("abcdefghij"), 10, 0, S("abcdefghij"));
test(S("abcdefghij"), 10, 1, S("abcdefghij"));
test(S("abcdefghij"), 11, 0, S("can't happen"));
test(S("abcdefghijklmnopqrst"), 0, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 1, S("bcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 10, S("klmnopqrst"));
test(S("abcdefghijklmnopqrst"), 0, 19, S("t"));
test(S("abcdefghijklmnopqrst"), 0, 20, S(""));
test(S("abcdefghijklmnopqrst"), 0, 21, S(""));
test(S("abcdefghijklmnopqrst"), 1, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 1, S("acdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 9, S("aklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 1, 18, S("at"));
test(S("abcdefghijklmnopqrst"), 1, 19, S("a"));
test(S("abcdefghijklmnopqrst"), 1, 20, S("a"));
test(S("abcdefghijklmnopqrst"), 10, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 10, 1, S("abcdefghijlmnopqrst"));
test(S("abcdefghijklmnopqrst"), 10, 5, S("abcdefghijpqrst"));
test(S("abcdefghijklmnopqrst"), 10, 9, S("abcdefghijt"));
test(S("abcdefghijklmnopqrst"), 10, 10, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 10, 11, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 19, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 19, 1, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 19, 2, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 20, 0, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 20, 1, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 21, 0, S("can't happen"));
test(S(""), 0, S(""));
test(S(""), 1, S("can't happen"));
test(S("abcde"), 0, S(""));
test(S("abcde"), 1, S("a"));
test(S("abcde"), 2, S("ab"));
test(S("abcde"), 4, S("abcd"));
test(S("abcde"), 5, S("abcde"));
test(S("abcde"), 6, S("can't happen"));
test(S("abcdefghij"), 0, S(""));
test(S("abcdefghij"), 1, S("a"));
test(S("abcdefghij"), 5, S("abcde"));
test(S("abcdefghij"), 9, S("abcdefghi"));
test(S("abcdefghij"), 10, S("abcdefghij"));
test(S("abcdefghij"), 11, S("can't happen"));
test(S("abcdefghijklmnopqrst"), 0, S(""));
test(S("abcdefghijklmnopqrst"), 1, S("a"));
test(S("abcdefghijklmnopqrst"), 10, S("abcdefghij"));
test(S("abcdefghijklmnopqrst"), 19, S("abcdefghijklmnopqrs"));
test(S("abcdefghijklmnopqrst"), 20, S("abcdefghijklmnopqrst"));
test(S("abcdefghijklmnopqrst"), 21, S("can't happen"));
test(S(""), S(""));
test(S("abcde"), S(""));
test(S("abcdefghij"), S(""));
test(S("abcdefghijklmnopqrst"), S(""));
}
#endif
}
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