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libcxx/test/std/strings/basic.string/string.modifiers/string_append/iterator.pass.cpp
Chandler Carruth 7c3769df62 Update more file headers across all of the LLVM projects in the monorepo 
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@351648 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-19 10:56:40 +00:00

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//===----------------------------------------------------------------------===//
//
// 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>
// template<class InputIterator>
// basic_string& append(InputIterator first, InputIterator last);
#include <string>
#include <cassert>
#include "test_iterators.h"
#include "min_allocator.h"
template <class S, class It>
void
test(S s, It first, It last, S expected)
{
s.append(first, last);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
template <class S, class It>
void
test_exceptions(S s, It first, It last)
{
S aCopy = s;
try {
s.append(first, last);
assert(false);
}
catch (...) {}
LIBCPP_ASSERT(s.__invariants());
assert(s == aCopy);
}
#endif
int main()
{
{
typedef std::string S;
const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
test(S(), s, s, S());
test(S(), s, s+1, S("A"));
test(S(), s, s+10, S("ABCDEFGHIJ"));
test(S(), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345"), s, s, S("12345"));
test(S("12345"), s, s+1, S("12345A"));
test(S("12345"), s, s+10, S("12345ABCDEFGHIJ"));
test(S("12345"), s, s+52, S("12345ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("1234567890"), s, s, S("1234567890"));
test(S("1234567890"), s, s+1, S("1234567890A"));
test(S("1234567890"), s, s+10, S("1234567890ABCDEFGHIJ"));
test(S("1234567890"), s, s+52, S("1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345678901234567890"), s, s, S("12345678901234567890"));
test(S("12345678901234567890"), s, s+1, S("12345678901234567890""A"));
test(S("12345678901234567890"), s, s+10, S("12345678901234567890""ABCDEFGHIJ"));
test(S("12345678901234567890"), s, s+52,
S("12345678901234567890""ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s), S());
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+1), S("A"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("ABCDEFGHIJ"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("12345"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("12345A"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("12345ABCDEFGHIJ"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("12345ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("1234567890"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("1234567890A"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("1234567890ABCDEFGHIJ"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("12345678901234567890"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("12345678901234567890""A"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("12345678901234567890""ABCDEFGHIJ"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("12345678901234567890""ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
test(S(), s, s, S());
test(S(), s, s+1, S("A"));
test(S(), s, s+10, S("ABCDEFGHIJ"));
test(S(), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345"), s, s, S("12345"));
test(S("12345"), s, s+1, S("12345A"));
test(S("12345"), s, s+10, S("12345ABCDEFGHIJ"));
test(S("12345"), s, s+52, S("12345ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("1234567890"), s, s, S("1234567890"));
test(S("1234567890"), s, s+1, S("1234567890A"));
test(S("1234567890"), s, s+10, S("1234567890ABCDEFGHIJ"));
test(S("1234567890"), s, s+52, S("1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345678901234567890"), s, s, S("12345678901234567890"));
test(S("12345678901234567890"), s, s+1, S("12345678901234567890""A"));
test(S("12345678901234567890"), s, s+10, S("12345678901234567890""ABCDEFGHIJ"));
test(S("12345678901234567890"), s, s+52,
S("12345678901234567890""ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s), S());
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+1), S("A"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("ABCDEFGHIJ"));
test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("12345"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("12345A"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("12345ABCDEFGHIJ"));
test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("12345ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("1234567890"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("1234567890A"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("1234567890ABCDEFGHIJ"));
test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s),
S("12345678901234567890"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1),
S("12345678901234567890""A"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10),
S("12345678901234567890""ABCDEFGHIJ"));
test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52),
S("12345678901234567890""ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
}
#endif
#ifndef TEST_HAS_NO_EXCEPTIONS
{ // test iterator operations that throw
typedef std::string S;
typedef ThrowingIterator<char> TIter;
typedef input_iterator<TIter> IIter;
const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
test_exceptions(S(), IIter(TIter(s, s+10, 4, TIter::TAIncrement)), IIter());
test_exceptions(S(), IIter(TIter(s, s+10, 5, TIter::TADereference)), IIter());
test_exceptions(S(), IIter(TIter(s, s+10, 6, TIter::TAComparison)), IIter());
test_exceptions(S(), TIter(s, s+10, 4, TIter::TAIncrement), TIter());
test_exceptions(S(), TIter(s, s+10, 5, TIter::TADereference), TIter());
test_exceptions(S(), TIter(s, s+10, 6, TIter::TAComparison), TIter());
}
#endif
{ // test appending to self
typedef std::string S;
S s_short = "123/";
S s_long = "Lorem ipsum dolor sit amet, consectetur/";
s_short.append(s_short.begin(), s_short.end());
assert(s_short == "123/123/");
s_short.append(s_short.begin(), s_short.end());
assert(s_short == "123/123/123/123/");
s_short.append(s_short.begin(), s_short.end());
assert(s_short == "123/123/123/123/123/123/123/123/");
s_long.append(s_long.begin(), s_long.end());
assert(s_long == "Lorem ipsum dolor sit amet, consectetur/Lorem ipsum dolor sit amet, consectetur/");
}
{ // test appending a different type
typedef std::string S;
const uint8_t p[] = "ABCD";
S s;
s.append(p, p + 4);
assert(s == "ABCD");
}
{ // test with a move iterator that returns char&&
typedef forward_iterator<const char*> It;
typedef std::move_iterator<It> MoveIt;
const char p[] = "ABCD";
std::string s;
s.append(MoveIt(It(std::begin(p))), MoveIt(It(std::end(p) - 1)));
assert(s == "ABCD");
}
{ // test with a move iterator that returns char&&
typedef const char* It;
typedef std::move_iterator<It> MoveIt;
const char p[] = "ABCD";
std::string s;
s.append(MoveIt(It(std::begin(p))), MoveIt(It(std::end(p) - 1)));
assert(s == "ABCD");
}
}
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