mame/3rdparty/bx/tests/vector_nocopy.cpp
2015-09-12 10:22:55 +02:00

229 lines
5.7 KiB
C++

/*-
* Copyright 2012-1015 Matthew Endsley
* All rights reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted providing that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "test.h"
#include <tinystl/allocator.h>
#include <tinystl/vector.h>
#include <algorithm>
#include <string.h>
#include <stdlib.h>
struct nocopy {
nocopy() { data = 0; }
explicit nocopy(const char* s) { data = s; }
~nocopy() { }
void swap(nocopy& other) { std::swap(data, other.data); }
void reset(const char* s) { data = s; }
const char* release() { const char* ret = data; data = 0; return ret; }
const char* data;
private:
nocopy(const nocopy& other);
nocopy& operator=(const nocopy& other);
};
static inline bool operator==(const nocopy& lhs, const char* rhs) {
if (lhs.data == 0 && rhs == 0)
return true;
if (lhs.data != 0 && rhs != 0)
return 0 == strcmp(lhs.data, rhs);
return false;
}
static inline bool operator==(const nocopy& lhs, const nocopy& rhs) {
if (lhs.data == 0 && rhs.data == 0)
return true;
if (lhs.data != 0 && rhs.data != 0)
return 0 == strcmp(lhs.data, rhs.data);
return false;
}
TEST(vector_nocopy_constructor) {
typedef tinystl::vector<nocopy> vector;
{
vector v;
CHECK( v.empty() );
CHECK( v.size() == 0 );
}
{
vector v(10);
CHECK( v.size() == 10 );
for (tinystl::vector<nocopy>::iterator it = v.begin(); it != v.end(); ++it) {
CHECK( it->data == 0 );
}
}
}
TEST(vector_nocopy_pushback) {
tinystl::vector<nocopy> v;
v.emplace_back("42");
v.emplace_back();
v.back().reset("24");
CHECK( v.size() == 2 );
CHECK( v[0] == "42" );
CHECK( v[1] == "24" );
}
TEST(vector_nocopy_vector) {
tinystl::vector< tinystl::vector<nocopy> > v(10);
tinystl::vector< tinystl::vector<nocopy> >::iterator it = v.begin(), end = v.end();
for (; it != end; ++it) {
CHECK( (*it).empty() );
CHECK( (*it).size() == 0 );
CHECK( (*it).begin() == (*it).end() );
}
}
TEST(vector_nocopy_swap) {
tinystl::vector<nocopy> v1;
v1.emplace_back("12");
v1.emplace_back("20");
tinystl::vector<nocopy> v2;
v2.emplace_back("54");
v1.swap(v2);
CHECK(v1.size() == 1);
CHECK(v2.size() == 2);
CHECK(v1[0] == "54");
CHECK(v2[0] == "12");
CHECK(v2[1] == "20");
}
TEST(vector_nocopy_popback) {
tinystl::vector<nocopy> v;
v.emplace_back("12");
v.emplace_back("24");
CHECK(v.back() == "24");
v.pop_back();
CHECK(v.back() == "12");
CHECK(v.size() == 1);
}
TEST(vector_nocopy_erase) {
tinystl::vector<nocopy> v;
v.emplace_back("1");
v.emplace_back("2");
v.emplace_back("3");
v.emplace_back("4");
v.emplace_back("5");
tinystl::vector<nocopy>::iterator it = v.erase(v.begin());
CHECK(*it == "2");
CHECK(v.size() == 4);
it = v.erase(v.end() - 1);
CHECK(it == v.end());
CHECK(v.size() == 3);
v.erase(v.begin() + 1, v.end() - 1);
CHECK(v.size() == 2);
CHECK(v[0] == "2");
CHECK(v[1] == "4");
}
TEST(vector_nocopy_erase_unordered) {
typedef tinystl::vector<nocopy> vector;
vector v;
v.emplace_back("1");
v.emplace_back("2");
v.emplace_back("3");
v.emplace_back("4");
v.emplace_back("5");
const char* first = v.front().release();
vector::iterator it = v.erase_unordered(v.begin());
CHECK( it == v.begin() );
CHECK( v.size() == 4 );
CHECK( std::count(v.begin(), v.end(), first) == 0 );
for (it = v.begin(); it != v.end(); ++it) {
CHECK( std::count(v.begin(), v.end(), *it) == 1 );
}
const char* last = v.back().release();
it = v.erase_unordered(v.end() - 1);
CHECK( it == v.end() );
CHECK( v.size() == 3 );
CHECK( std::count(v.begin(), v.end(), last) == 0 );
for (it = v.begin(); it != v.end(); ++it) {
CHECK( std::count(v.begin(), v.end(), *it) == 1 );
}
first = v.begin()->data;
last = (v.end() - 1)->data;
v.erase_unordered(v.begin() + 1, v.end() - 1);
CHECK( v.size() == 2 );
CHECK( std::count(v.begin(), v.end(), first) == 1 );
CHECK( std::count(v.begin(), v.end(), last) == 1 );
}
TEST(vector_nocopy_insert) {
tinystl::vector<nocopy> v;
v.emplace_back("1");
v.emplace_back("2");
v.emplace_back("3");
v.emplace_back("4");
v.emplace_back("5");
v.emplace(v.begin(), "0");
CHECK( v.size() == 6 );
CHECK( v[0] == "0" );
CHECK( v[1] == "1" );
CHECK( v[5] == "5" );
v.emplace(v.end(), "6");
CHECK( v.size() == 7 );
CHECK( v.front() == "0" );
CHECK( v.back() == "6" );
}
TEST(vector_nocopy_iterator) {
tinystl::vector<nocopy> v(5);
v[0].reset("1");
v[1].reset("2");
v[2].reset("3");
v[3].reset("4");
v[4].reset("5");
const tinystl::vector<nocopy>& cv = v;
//CHECK(v.data() == &*v.begin());
//CHECK(v.data() == &v[0]);
//CHECK(v.data() + v.size() == &*v.end());
CHECK(v.begin() == cv.begin());
CHECK(v.end() == cv.end());
//CHECK(v.data() == cv.data());
}