Bifalgorithm post · Computer science one · Selection Operators

How do you dynamically allocate and initialize a structure?

How do you dynamically allocate and initialize a structure? (Computer science one · Selection Operators) — "Student *s = (Student *) malloc(sizeof(Student) * 1…

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Dynamic allocation and initialization of one Student structure
malloc(sizeof(Student) * 1) allocates memory for one Student structure
Multiplication by 1 is unnecessary but emphasizes that this is not an array allocation
Dynamic allocation does not initialize the structure's members
C provides no default values for the structure's variables
Pointer member variables also receive no initialized memory
The firstName and lastName pointers must be initialized manually
Their memory must be allocated with additional malloc() calls

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How do you dynamically allocate and initialize a structure?

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Computer science one

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sam23

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"Student *s = (Student *) malloc(sizeof(Student) * 1); The multiplication by 1 in this example is not strictly necessary, but emphasizes the fact that we are allocating space for one structure and not an array of structures. Initializing a dynamically allocated structure like this does not initialize any of its variables as there are no default values defined by C. Moreover, it does not initialize memory for any pointer member variables. For example the firstName and lastName pointers need to be manually initialized with additional malloc() calls."

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