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// Helper interface for cpp11_move_only.i and others
%include <std_string.i>
%catches(std::string) Counter::check_counts;
%inline %{
#include <sstream>
using namespace std;
struct Counter {
static int normal_constructor;
static int copy_constructor;
static int copy_assignment;
static int move_constructor;
static int move_assignment;
static int destructor;
static void reset_counts() {
normal_constructor = 0;
copy_constructor = 0;
copy_assignment = 0;
move_constructor = 0;
move_assignment = 0;
destructor = 0;
}
// Check against expected counts of constructor, assignment operators etc.
// Not observed during development, but compiler optimisation could change the expected values.
// Throws exception if not correct (use %catches to catch them)
static void check_counts(
int normal_constructor,
int copy_constructor,
int copy_assignment,
int move_constructor,
int move_assignment,
int destructor) {
bool match = (
normal_constructor == Counter::normal_constructor &&
copy_constructor == Counter::copy_constructor &&
copy_assignment == Counter::copy_assignment &&
move_constructor == Counter::move_constructor &&
move_assignment == Counter::move_assignment &&
destructor == Counter::destructor);
if (!match) {
std::stringstream ss;
ss << "check_counts failed" << std::endl <<
Counter::normal_constructor << " " <<
Counter::copy_constructor << " " <<
Counter::copy_assignment << " " <<
Counter::move_constructor << " " <<
Counter::move_assignment << " " <<
Counter::destructor << " " <<
" (actual)" << std::endl <<
normal_constructor << " " <<
copy_constructor << " " <<
copy_assignment << " " <<
move_constructor << " " <<
move_assignment << " " <<
destructor << " " <<
" (expected)" << std::endl;
throw ss.str();
}
}
};
int Counter::normal_constructor = 0;
int Counter::copy_constructor = 0;
int Counter::copy_assignment = 0;
int Counter::move_constructor = 0;
int Counter::move_assignment = 0;
int Counter::destructor = 0;
%}
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