calloc and free Functions in C Programming Language Video Tutorial

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In this C programming language video tutorial / lecture for beginners video series, you will learn about the calloc() function used for dynamic memory allocation in detail with example.

you will learn the syntax of calloc function , what are the parameters required for the it, how this function allocates the memory, how to allocate memory dynamatically using it, how to access or use the memory allocated through it in detail with example.

watch the tutorial about malloc and free functions at

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i hope u remake all of these old videos👍

forstudies
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in line number 20, u have used & symbol in scanf, (&marks[counter]), , my doubt is the calloc will return the address of heap to marks then why to use & again since marks already has adress right .I have tried removing & symbol no errors, working for first entry element but for second entry element program crashed. Whats the reason?

saiprakashveeram
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in line: marks = (int *) calloc(length, sizeof(int));
specifically in:(int *)
is this a type casting from void to int pointer ?

pcbingemaster
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How would Deallocation of blocks work?

housecabrera
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please how can i use calloc or malloc with 2D arrays !!

inaramara
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how to read / write to   calloc(10, sizeof(char)*10);   how please?

sirazulislamsiraz
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