why stl is not thread safe?
243570
STL is not thread safe, get over it. ... STL is plain C++ code, compiler doesn't even know the existence of the STL, it's just C++ code released with your compiler, what the STL has in common with the C++ language is the fact that it's standardized.
1078086
The big difference between STL and OBJ meshes is what's displayed on the surface. STL files don't display any data on the surface of the mesh. They indicate only the surface itself– the geometry of the object, how big it is and the shape of its sides, but that's about it.
1435420
If several references point to same String without even knowing it, it would be bad if one of the references modified that String value. That's why String objects are immutable.
1213428
It is well known that static methods with immutable objects as parameters are thread safe and mutable objects are not. ... It maintains no state and operates only on its arguments. I would strongly recommend you read Java Concurrency in Practice, or a similar book dedicated to thread safety in Java.
996481
From the man page: The pthread_mutex_lock() function locks mutex. If the mutex is already locked, the calling thread will block until the mutex becomes available. So yes - your thread is blocked until the lock is available and it can obtain it.
936550
No, it isn't. The instance is stateful. So you need to store it threadlocal, or to obtain a new instance on every encrypt/decrypt call, or to wrap it in a synchronized(cipher) block. ... Even if a Cipher was thread-safe, it would not really be useful to use it from multiple threads concurrently.
214098
Containers in C++ STL. Sequence containers implement data structures which can be accessed sequentially. Associative containers implement sorted data structures that can be quickly searched (O(log n) complexity). Map: Collection of key-value pairs, sorted by keys, keys are unique (class template).
1194366
An immutable object is an object that will not change its internal state after creation. Immutable objects are very useful in multithreaded applications because they can be shared between threads without synchronization. Immutable objects are always thread safe.
569654
['References allow a function to change the value of the argument, which is sometimes useful. ... ', 'Because a copy of the argument is not made, pass by reference is fast, even when used with large structs or classes.']
1336280
No. The await operator only makes sense in an async function.
1379033
std::function::operator bool Returns whether the object is callable. A function object is callable if it is not an empty function (i.e., if it has a callable object as target).
753969
pthread_join() is a blocking call, it will block the calling thread until the other thread ends.
27557
3) Locking is one way of achieving thread-safety in Java. 4) Static variables if not synchronized properly become a major cause of thread-safety issues. ... 7) local variables are also thread-safe because each thread has there own copy and using local variables is a good way to write thread-safe code in Java.
606676
HashMap is non synchronized. It is not-thread safe and can't be shared between many threads without proper synchronization code whereas Hashtable is synchronized. ... HashMap allows one null key and multiple null values whereas Hashtable doesn't allow any null key or value.
1472087
(since C++11) std::nullptr_t is the type of the null pointer literal, nullptr. It is a distinct type that is not itself a pointer type or a pointer to member type.
811363
Local variables are stored in each thread's own stack. That means that local variables are never shared between threads. so Method area and Heap is shared by all the threads but every thread is having its own JAVA Stack and PC and that is not shared by any other Threads. ... so all the local variables are THREAD SAFE.
648622
Time complexity for ArrayDeque for accessing a element is O(1) and that for LinkList is is O(N) to access last element. ArrayDeque is not thread safe so manually synchronization is necessary so that you can access it through multiple threads and so they they are faster.