strcoll() function in c with example program

strcoll() in c is a library function use to compares string str1 to str2 and result will depends on  result is the LC_COLLATE setting of the location.

Syntax for strcoll() in c

int strcoll(const char *str1, const char *str2)

Parameters for strcoll():-

str1 & str2 are two Parameters which is going to use for strcoll() function in c.

Read more :- Arc function in C with graphics in c

 

Return Value :-

if return value is  < 0 then it indicates that str1 is less than str2 or Return value > 0 then it indicates that str2 is less than str1 and the last one Return value = 0 than str1 is equal to str2.

Example program for strcoll() in c

#include <stdio.h>
#include <string.h>

int main () {
   char str1[15];
   char str2[15];
   int ret;

   strcpy(str1, "abc");
   strcpy(str2, "ABC");

   ret = strcoll(str1, str2);

   if(ret > 0) {
      printf("str1 is less than str2");
   } else if(ret < 0) {
      printf("str2 is less than str1");
   } else {
      printf("str1 is equal to str2");
   }
   
   return(0);
}

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clock() function in c with example program

 To calculate the time in c programming we can use clock() function in c which is define in time.h header file clock  can call at the beginning and end of the code for which will help to measure time.

In this process subtract the obtain values for the clock function, and then divide by CLOCKS_PER_SEC (the number of clock ticks per second)to get time.

Read also :-  ellipse function in C programming

 

Syntax for clock function in c

 #include <time.h>
     
     clock_t start, end;
     double cpu_time_used;
     
     start = clock();
     ... /* Do the work. */
     end = clock();
     cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC;

Following C program will tell how to measure time with the help of clock() function in c and we also use fun() function which will help to terminate the process after enter key press to terminate.

Example program for clock() function in c

/* Program to demonstrate time taken by function fun() */

#include <stdio.h>

#include <time.h>

  

// A function that terminates when enter key is pressed

void fun()

{

    printf("fun() starts \n");

    printf("Press enter to stop fun \n");

    while(1)

    {

        if (getchar())

            break;

    }

    printf("fun() ends \n");

}

  

// The main program calls fun() and measures time taken by fun()

int main()

{

    // Calculate the time taken by fun()

    clock_t t;

    t = clock();

    fun();

    t = clock() - t;

    double time_taken = ((double)t)/CLOCKS_PER_SEC; // in seconds

  

    printf("fun() took %f seconds to execute \n", time_taken);

    return 0;

}

OUTPUT :- 

clock function in c

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Arc function in C with graphics in c

 Declaration: void arc(int x, int y, int stangle, int endangle, int radius);

"arc" operate is employed to draw associate arc with center (x, y) for example draw a corcle in c programming and stangle specifies beginning angle for arc, end angle for arc can be define by endangle and the and last parameter specifies the radius of the arc.

 arc operate may also be accustomed draw a circle except for that beginning angle and finish angle ought to be zero and 360 severally.

Draw A circle in c programming 

 #include <graphics.h>
#include <conio.h>

int main()
{
   int gd = DETECT, gm;

   initgraph(&gd, &gm, "C:\\TC\\BGI");

   arc(100, 100, 0, 135, 50);
   
   getch();
   closegraph();
   return 0;
}

Well in the written c program for circle in c which is having (100,100) center '0' is the starting angle, 135 is the end angle and '50' is an radious.

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