C malloc

Malloc in c

#include <stdlib.h>

void *malloc(size_t size);

void exemple(void)
{
  char *string;
  
  string = malloc(sizeof(char) * 5);
  if (string == NULL)
    return;
  string[0] = 'H';
  string[1] = 'e';
  string[2] = 'y';
  string[3] = '!';
  string[4] = '\0';
  printf("%s\n", string);
  free(string);
}

/// output : "Hey!"

C malloc

#include <stdlib.h>
int main(){
int *ptr;
ptr = malloc(15 * sizeof(*ptr)); /* a block of 15 integers */
    if (ptr != NULL) {
      *(ptr + 5) = 480; /* assign 480 to sixth integer */
      printf("Value of the 6th integer is %d",*(ptr + 5));
    }
}

Source: guru99.com

C malloc

Example: ptr = (int *) malloc (50)

Source: guru99.com

C malloc

ptr = (cast_type *) malloc (byte_size);

Source: guru99.com

What is the use of malloc in c

In C, the library function malloc is used to allocate a block of memory on the heap. The program accesses this block of memory via a pointer that malloc returns. When the memory is no longer needed, the pointer is passed to free which deallocates the memory so that it can be used for other purposes.

Malloc in c

// Let's allocate enough space on the heap for an array storing 4 ints

intArray = (int *) malloc(4 * sizeof(int)); // A pointer to an array of ints

intArray[0] = 10;
intArray[1] = 20;
intArray[2] = 25;
intArray[3] = 35;

Similar codes

0 vote121 views1 answer
Fina students name by using html backend database
C
0 vote178 views1 answer
Complete the function in the editor. It has one parameter: an array, . It must iterate through the array performing one of the following actions on each element:
C
2 votes171 views6 answers
How to print hello world in c
C
1 vote162 views1 answer
What is covert channel
C
0 vote179 views1 answer
Area of a Circle in C Programming
C
0 vote178 views1 answer
Xamarin command listview button
C
1 vote171 views1 answer
Space after format specifiers in c
C
0 vote170 views1 answer
How to free memory in c
C
0 vote180 views3 answers
Script hack blox fruti
C
0 vote176 views1 answer
Srand() C
C