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A stack may be implemented as, for example, a singly linked list with a pointer to the top element. A stack may be implemented to have a bounded capacity. If the stack is full and does not contain enough space to accept another element, the stack is in a state of stack overflow. A stack is needed to implement depth-first search.
Example: implementation of the abstract stack. As an example, here is an implementation of the abstract stack above in the C programming language.
The implementation of variables is important for any programming language, but for stack-oriented languages, it is of special concern, as there is only one way to interact with data. The way variables are implemented in stack-oriented languages such as PostScript usually involves a separate, specialized stack which holds dictionaries of key ...
Protocol stack of the OSI model. The protocol stack or network stack is an implementation of a computer networking protocol suite or protocol family.Some of these terms are used interchangeably but strictly speaking, the suite is the definition of the communication protocols, and the stack is the software implementation of them.
Examples of stack instruction sets directly executed in hardware include the Z4 (1945) computer by Konrad Zuse had a 2-level stack. [8] [9] the Burroughs large systems architecture (since 1961) the English Electric KDF9 machine. First delivered in 1964, the KDF9 had a 19-level deep pushdown stack of arithmetic registers, and a 17-level deep ...
*/ /* This implementation does not implement composite functions, functions with a variable number of arguments, or unary operators. */ while there are tokens to be read: read a token if the token is: - a number: put it into the output queue - a function: push it onto the operator stack - an operator o 1: while ( there is an operator o 2 at the ...
Most modern implementations of a function call use a call stack, a special case of the stack data structure, to implement function calls and returns. Each procedure call creates a new entry, called a stack frame , at the top of the stack; when the procedure returns, its stack frame is deleted from the stack, and its space may be used for other ...
Stack; Queue (example Priority queue) Double-ended queue; Graph (example Tree, Heap) ... Depending on the implementation of the data type, attempting to add a ...