i_to_str().c

//program to convert integer to string

#include <stdio.h>
void i_to_str(int num, char str[], int base)
{
	int i = 0, temp, rem, j, sign;

	sign = num < 0 ? -1 : 1;
	if (sign == -1)
		num = -num;
	while (num > 0)
	{
		rem = num % base;
		num /= base;
		if (rem > 9 && rem < 16)
			str[i++] = rem - 10 + 'A';
		else
			str[i++] = rem + '0';
	}
	if (sign == -1)
		str[i++] = '-';
	str[i] = '\0';

	for (i = 0, j = strlen(str) - 1; i < j; i++, j--)
	{
		temp = str[i];
		str[i] = str[j];
		str[j] = temp;
	}
}
void d_to_str(double num, char str[])
{
	int i, k;
	double d;
	i = num;
	i_to_str(i, str, 10);
	str[strlen(str) + 1] = '\0';
	str[strlen(str)] = '.';
	d = num - i;
	k = d * 1000000;
	if (k < 0)
		k = -k;
	i_to_str(k, str + strlen(str), 10);
}
int main(void)
{
	char str[20];
	int num;
	double d;

	printf("Enter any number(int) : ");
	scanf("%d", &num);
	i_to_str(num, str, 10);
	puts(str);
	printf("Enter any number(double) : ");
	fflush(stdin);
	scanf("%lf", &d);
	d_to_str(d, str);
	puts(str);
}