swap.pass.cpp
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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
//
//===----------------------------------------------------------------------===//
// <deque>
// template <class T, class A>
// void swap(deque<T, A>& x, deque<T, A>& y);
#include <deque>
#include <cassert>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
template <class C>
C
make(int size, int start = 0 )
{
const int b = 4096 / sizeof(int);
int init = 0;
if (start > 0)
{
init = (start+1) / b + ((start+1) % b != 0);
init *= b;
--init;
}
C c(init, 0);
for (int i = 0; i < init-start; ++i)
c.pop_back();
for (int i = 0; i < size; ++i)
c.push_back(i);
for (int i = 0; i < start; ++i)
c.pop_front();
return c;
}
template <class C>
void testN(int start, int N, int M)
{
C c1 = make<C>(N, start);
C c2 = make<C>(M);
C c1_save = c1;
C c2_save = c2;
swap(c1, c2);
assert(c1 == c2_save);
assert(c2 == c1_save);
}
int main(int, char**)
{
{
int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
const int N = sizeof(rng)/sizeof(rng[0]);
for (int i = 0; i < N; ++i)
for (int j = 0; j < N; ++j)
for (int k = 0; k < N; ++k)
testN<std::deque<int> >(rng[i], rng[j], rng[k]);
}
{
int a1[] = {1, 3, 7, 9, 10};
int a2[] = {0, 2, 4, 5, 6, 8, 11};
typedef test_allocator<int> A;
std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A(1, 1));
std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A(1, 2));
swap(c1, c2);
assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
assert(c1.get_allocator().get_id() == 1);
assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
assert(c2.get_allocator().get_id() == 2);
}
{
int a1[] = {1, 3, 7, 9, 10};
int a2[] = {0, 2, 4, 5, 6, 8, 11};
typedef other_allocator<int> A;
std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A(1));
std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A(2));
swap(c1, c2);
assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
assert(c1.get_allocator() == A(2));
assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
assert(c2.get_allocator() == A(1));
}
#if TEST_STD_VER >= 11
{
int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
const int N = sizeof(rng)/sizeof(rng[0]);
for (int i = 0; i < N; ++i)
for (int j = 0; j < N; ++j)
for (int k = 0; k < N; ++k)
testN<std::deque<int, min_allocator<int>> >(rng[i], rng[j], rng[k]);
}
{
int a1[] = {1, 3, 7, 9, 10};
int a2[] = {0, 2, 4, 5, 6, 8, 11};
typedef min_allocator<int> A;
std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A());
std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A());
swap(c1, c2);
assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
assert(c1.get_allocator() == A());
assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
assert(c2.get_allocator() == A());
}
#endif
return 0;
}