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Status: Tags: Links: C MOC

Pointers and References

Pointers

• Hold the location of variables
• Can change parameters of functions
• Used to modify variables sent to a function by getting adress as parameter
  • void foo(int* a) as parameter, call using foo(&a)

Syntax

& to get adress of a value * dereferencing, access value at the adress

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int* px = &x; //create pointer var to adr of x

*px = 7; //value at var px is changed to 7

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Created:: 2021-09-13 14:35