Dynamic Memory Allocation using calloc()

Introduction to Dynamic Memory Allocation with calloc

In this presentation, we will explore the concept of dynamic memory allocation using the calloc function.

What is calloc?

• The calloc function is used to dynamically allocate multiple blocks of memory.

• It is a built-in function declared in stdlib.h, similar to the malloc function.

• It differs from malloc in that it requires two arguments instead of one.

Syntax and Arguments

• The syntax of calloc requires two arguments - the number of blocks and the size of each block.

• The first argument represents the number of blocks, while the second argument represents the size of each block.

Example Usage

• An example demonstrates how calloc allocates memory for 10 blocks, each with a size equal to that of an integer.

• The memory allocated by calloc is initialized to zero, unlike malloc which may contain garbage values.

Difference between calloc and malloc

• Memory allocated by calloc is initialized to zero, while memory allocated by malloc may contain garbage values.

Conclusion

• Both malloc and calloc return NULL when sufficient memory is not available in the heap.

• "calloc" stands for clear allocation and "malloc" stands for memory allocation.

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