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education/software development/ECE1400/C.md
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@ -52,7 +52,13 @@ int arr_size = sizeof(arr) / sizeof(arr[0]);
`&` gives you the address of a variable `&` gives you the address of a variable
`*` gives you the value in memory that an address points to. `*` gives you the value in memory that an address points to.
To update the value a pointer points at, you can dereference on the left hand side of the assignment operator:
```c
// Update the value `p` points at to be 7
*p = 7;
```
Because of how operator preci works
# Formatting specifiers # Formatting specifiers
# Standard library # Standard library
## Formatting specifiers ## Formatting specifiers