CS 31: Intro to Systems Pointers and Memory
CS 31: Intro to Systems Pointers and Memory
Kevin Webb Swarthmore College
October 2, 2018
Overview
? How to reference the location of a variable in memory
? Where variables are placed in memory
? How to make this information useful
? Allocating memory ? Calling functions with pointer arguments
The "P" Word
? Pointer: A variable that stores a reference to a memory location.
? Pointer: sequence of bits that should be interpreted as an index into memory.
? Where have we seen this before?
The "P" Word
? Pointer: A variable that stores a reference to a memory location.
? Pointer: sequence of bits that should be interpreted as an index into memory.
? We've seen this examples of this already!
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