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add ScopeGuard ByRef test

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@528 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
syntheticpp 2006-02-14 11:28:54 +00:00
parent 261f5f3cc0
commit 4f1aa95dce
1 changed files with 18 additions and 1 deletions
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19
test/ScopeGuard/main.cpp
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@ -19,6 +19,12 @@
#include <string>
#include <iostream>
void Decrement(int& x)
{
--x;
}
struct UserDatabase
{
void AddFriend(const std::string&, const std::string&)
@ -30,7 +36,8 @@ struct UserDatabase
class User
{
public:
User(UserDatabase* db) : pDB_(db){}
User(UserDatabase* db) : fCount(0), pDB_(db)
{}
std::string GetName();
@ -39,6 +46,8 @@ public:
size_t countFriends();
int fCount;
private:
typedef std::vector<User*> UserCont;
UserCont friends_;
@ -58,6 +67,7 @@ size_t User::countFriends()
void User::AddFriend(User& newFriend)
{
friends_.push_back(&newFriend);
fCount++;
pDB_->AddFriend(GetName(), newFriend.GetName());
}
@ -65,6 +75,11 @@ void User::AddFriendGuarded(User& newFriend)
{
friends_.push_back(&newFriend);
Loki::ScopeGuard guard = Loki::MakeObjGuard(friends_, &UserCont::pop_back);
fCount++;
Loki::ScopeGuard guardRef = Loki::MakeGuard(Decrement, Loki::ByRef(fCount));
(void) guardRef;
pDB_->AddFriend(GetName(), newFriend.GetName());
guard.Dismiss();
}
@ -80,10 +95,12 @@ int main()
try{ u1.AddFriend(u2); }
catch (...){}
std::cout << "u1 countFriends: " << u1.countFriends() << "\n";
std::cout << "u1 fCount : " << u1.fCount << "\n";
try{ u2.AddFriendGuarded(u1); }
catch (...){}
std::cout << "u2 countFriends: " << u2.countFriends() << "\n";
std::cout << "u2 fCount : " << u2.fCount << "\n";
#if defined(__BORLANDC__) || defined(_MSC_VER)
system("PAUSE");