Static memory allocation patterns in Embedded C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a static integer variable named 'counter'.

Embedded C

static [1] counter = 0;

Drag options to blanks, or click blank then click option'

Aint

Bfloat

Cchar

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using a floating-point type instead of an integer.

Forgetting to specify the data type.

The keyword static combined with int declares a static integer variable.

2fill in blank

medium

Complete the code to declare a static array of 10 characters named 'buffer'.

Embedded C

static [1] buffer[10];

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Aint

Bdouble

Cfloat

Dchar

Attempts:

3 left

💡 Hint

Common Mistakes

Using int instead of char for character arrays.

Forgetting the static keyword.

The array buffer is declared as a static array of characters using char.

3fill in blank

hard

Fix the error in the static pointer declaration to point to an integer.

Embedded C

static [1] *ptr;

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Afloat

Bint

Cchar

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using a floating-point type instead of int.

Omitting the asterisk (*) for pointer declaration.

The pointer ptr should point to an integer, so the type is int.

4fill in blank

hard

Fill both blanks to declare a static constant array of 5 integers named 'values'.

Embedded C

static [1] [2] values[5] = {1, 2, 3, 4, 5};

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Aconst

Bint

Cfloat

Dvolatile

Attempts:

3 left

💡 Hint

Common Mistakes

Using float instead of int.

Forgetting to use const for constant arrays.

The array is declared as a static constant integer array using const int.

5fill in blank

hard

Fill all three blanks to declare a static volatile pointer to a constant integer named 'ptr'.

Embedded C

static [1] [2] [3] * ptr;

Drag options to blanks, or click blank then click option'

Avolatile

Bconst

Cint

Dstatic

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of volatile and const.

Forgetting the asterisk (*) for pointer declaration.

The declaration uses static volatile const int *ptr; to declare a static volatile pointer to a constant integer.