# C TUTORIAL
# C PROGRAMS
Pointers Examples
➤ Pointer Basic Examples
➤ Dynamic Memory Allocation
➤ Read Write Array with Pointer
➤ Sum Avg of Array with Pointer
➤ Sort Array with Pointer
➤ Search in Array using Pointer
➤ Sum of N Numbers
➤ Largest Number by DMA
Others
➤ C Program Without Main()
➤ Hello World Without ;
➤ Process & Parent Process ID
➤ C Program Without Header File
➤ void main(), main() vs int main()
➤ fork() function in C
➤ Why gets function is dangerous
➤ Undefined reference to sqrt
# C PROGRAMS
Pointers Examples
➤ Pointer Basic Examples
➤ Dynamic Memory Allocation
➤ Read Write Array with Pointer
➤ Sum Avg of Array with Pointer
➤ Sort Array with Pointer
➤ Search in Array using Pointer
➤ Sum of N Numbers
➤ Largest Number by DMA
Others
➤ C Program Without Main()
➤ Hello World Without ;
➤ Process & Parent Process ID
➤ C Program Without Header File
➤ void main(), main() vs int main()
➤ fork() function in C
➤ Why gets function is dangerous
➤ Undefined reference to sqrt
We will write a C program to find largest number using dynamic memory allocation – calloc(). calloc() function is defined under <stdlib.h>
#include<stdio.h>
#include<stdlib.h>
int main()
{
int i, num;
float *data;
printf("Enter total number of elements(1 to 100): ");
scanf("%d",&num);
// allocates the memory for 'num' elements
data=(float*)calloc(num,sizeof(float));
if(data==NULL)
{
printf("Error! Memory not Allocated.");
exit(0);
}
printf("\n");
// store the number entered by the User
for(i=0;i<num;i++)
{
printf("Enter element %d:",i+1);
scanf("%f",data+i);
}
// store largest number at address data
for(i=0;i<num;i++)
{
if( *data < *(data+i))
*data = *(data+i);
}
printf("Largest Element = %.2f",*data);
return 0;
}Output:-
Enter total number of elements(1 to 100): 5
Enter element 1:10.2
Enter element 2:23
Enter element 3:23.3
Enter element 4:24
Enter element 5:32
Largest Element = 32.00
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