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Unordered: A bit more feedback from unnecessary_copy_tests

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[SVN r80635]
This commit is contained in:
Daniel James
2012-09-22 18:32:22 +00:00
parent 94ef1ac391
commit d6322718f3
1 changed files with 42 additions and 5 deletions
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47
test/unordered/unnecessary_copy_tests.cpp
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@ -20,8 +20,17 @@ namespace unnecessary_copy_tests
public:
static int copies;
static int moves;
count_copies() : tag_(0) { ++copies; }
explicit count_copies(int tag) : tag_(tag) { ++copies; }
static int id_count;
count_copies() : tag_(0), id_(++id_count) {
++copies;
trace_op("Default construct");
}
explicit count_copies(int tag) : tag_(tag), id_(++id_count) {
++copies;
trace_op("Tag construct");
}
// This bizarre constructor is an attempt to confuse emplace.
//
@ -33,17 +42,30 @@ namespace unnecessary_copy_tests
// The second emplace should use the single argument contructor for
// the key, and this constructor for the value.
count_copies(count_copies const&, count_copies const& x)
: tag_(x.tag_) { ++copies; }
: tag_(x.tag_), id_(++id_count)
{
++copies;
trace_op("Pair construct");
}
count_copies(count_copies const& x) : tag_(x.tag_) { ++copies; }
count_copies(BOOST_RV_REF(count_copies) x) : tag_(x.tag_) {
count_copies(count_copies const& x) : tag_(x.tag_), id_(++id_count)
{
++copies;
trace_op("Copy construct");
}
count_copies(BOOST_RV_REF(count_copies) x) :
tag_(x.tag_), id_(++id_count)
{
x.tag_ = -1; ++moves;
trace_op("Move construct");
}
count_copies& operator=(BOOST_COPY_ASSIGN_REF(count_copies) p) // Copy assignment
{
tag_ = p.tag_;
++copies;
trace_op("Copy assign");
return *this;
}
@ -51,10 +73,21 @@ namespace unnecessary_copy_tests
{
tag_ = p.tag_;
++moves;
trace_op("Move assign");
return *this;
}
~count_copies() {
trace_op("Destruct");
}
void trace_op(char const* str) {
BOOST_LIGHTWEIGHT_TEST_OSTREAM << str << ": " << tag_
<< " (#" << id_ << ")" <<std::endl;
}
int tag_;
int id_;
};
bool operator==(count_copies const& x, count_copies const& y) {
@ -69,6 +102,9 @@ namespace unnecessary_copy_tests
void reset() {
count_copies::copies = 0;
count_copies::moves = 0;
BOOST_LIGHTWEIGHT_TEST_OSTREAM
<< "\nReset\n" << std::endl;
}
}
@ -122,6 +158,7 @@ namespace unnecessary_copy_tests
{
int count_copies::copies;
int count_copies::moves;
int count_copies::id_count;
template <class T>
void unnecessary_copy_insert_test(T*)