code for converting float to string

// This code converts the given float values to a string
// input argumentsto the function are 1. Float value that to be converted 2. Number of digits at the output string 3. The string variable to store the converted results

/* Perfect float to string Conversion c program */

#include <stdio.h>

void ftostr(double num, int digits,char *buff)
{
int i_temp = (int)num;

float f_temp = num-i_temp;

char temp_s[20];
int i_len = i_temp>0 ?1:2;

int ref_len = i_len;
int var = i_temp;

while(var)
{
i_len += 1;
var /=10;
}

int temp_len = i_len;

for(int i=0;i<digits;i++)
{
if(temp_len==ref_len)
{
temp_s[i_len-2-i]='0' + i_temp%10;
temp_len -= 1;
}
else if(temp_len>ref_len)
{
temp_s[i_len-2-i]='0' + i_temp%10;
i_temp /= 10;
temp_len -= 1;
}
if(i_len-1 == i)
{
temp_s[i] = '.';
temp_len -= ref_len==2?1:0;
}
else if(temp_len == 0)
{
temp_s[i] =(int)(f_temp*10)+'0';
f_temp = f_temp *10;
f_temp = f_temp - (int)f_temp;
}
}

for(int i=0;i<=digits;i++)
{
buff[i] = temp_s[i];
}
}

int main()
{
float a = 10.2563;
char tx[100];

ftostr(a,10,tx);

printf("\n %s",tx);

return 0;
}

// This code converts the given float values to a string
// input argumentsto the function are 1. Float value that to be converted 2. Number of digits at the output string 3. The string variable to store the converted results

/* Perfect float to string Conversion c program */

#include <stdio.h>

void ftostr(double num, int digits,char *buff)
{
int i_temp = (int)num;

float f_temp = num-i_temp;

char temp_s[20];
int i_len = i_temp>0 ?1:2;

int ref_len = i_len;
int var = i_temp;

while(var)
{
i_len += 1;
var /=10;
}

int temp_len = i_len;

for(int i=0;i<digits;i++)
{
if(temp_len==ref_len)
{
temp_s[i_len-2-i]='0' + i_temp%10;
temp_len -= 1;
}
else if(temp_len>ref_len)
{
temp_s[i_len-2-i]='0' + i_temp%10;
i_temp /= 10;
temp_len -= 1;
}
if(i_len-1 == i)
{
temp_s[i] = '.';
temp_len -= ref_len==2?1:0;
}
else if(temp_len == 0)
{
temp_s[i] =(int)(f_temp*10)+'0';
f_temp = f_temp *10;
f_temp = f_temp - (int)f_temp;
}
}

for(int i=0;i<=digits;i++)
{
buff[i] = temp_s[i];
}
}

int main()
{
float a = 10.2563;
char tx[100];

ftostr(a,10,tx);

printf("\n %s",tx);

return 0;
}