ftoa.c

#include <stdio.h>

int powk(int x, unsigned int y)
{
    if( y == 0)
        return 1;
    else if (y%2 == 0)
        return powk(x, y/2)*powk(x, y/2);
    else
        return x*powk(x, y/2)*powk(x, y/2);
 
}
 

void ftoa(float flt, int after_point)
{
    int int_flt = (int) flt;
	printf("%d" , int_flt);
	printf(".");
	
	int mut_ab = powk(10,after_point);
    int after_point_flt = (int) (flt * mut_ab); //33314
    
    int multiplier = powk(10,(after_point-1));
	//printf("MULTIPLIER : %d\n" , multiplier);
    for(int xy=0; xy<after_point; xy++)
    {
        int muted = (after_point_flt/multiplier);
		//printf("%d\n",muted);
        muted = muted % 10;
        printf("%d", muted);
        
        multiplier/=10;
    }
	
	//printf("%d", after_point_flt);
	
}

int main(void) {
	float pi = 333.14434;
	ftoa(pi,5);
	printf("\n");
	return 0;
}