Reference
Operators
| Tests if the stack object on the left side of the operator is not equal to the stack object on the right side. | |
| Tests if the stack object on the left side of the operator is less than the stack object on the right side. | |
| Tests if the stack object on the left side of the operator is less than or equal to the stack object on the right side. | |
| Tests if the stack object on the left side of the operator is equal to the stack object on the right side. | |
| Tests if the stack object on the left side of the operator is greater than the stack object on the right side. | |
| Tests if the stack object on the left side of the operator is greater than or equal to the stack object on the right side. | 
Classes
| A template container adaptor class that provides a restriction of functionality limiting access to the element most recently added to some underlying container type. |