C: Does there any function to convert the int or float to a string?

Question

I want to pass a string over the network, After Coding and Decoding How will i make sure that this is the same string ?

Answer 1

Yes, There is a function called sprintf() in header file stdio.h,

Example

#include<stdio.h>
int main(void)
{
    char str1[11];
    char str2[11];
    int x=143;
    float y=29.299;

    sprintf(str1,"%d",x);
    sprintf(str2,"%.3f",y);
    printf("str1=%s, str2=%s\n",str1,str2);

    return 0;
}

Output

str1=143, str2=29.299

Answer 2

There is no function explicitly but you can use sprintf(str, "%f", float) or sprintf(str, "%d", integer)

Answer 3

Yes, There is a function called "itoa()" which means Integer to ascii.

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

int main()
{
    int a=54325;
    char buffer[20];
    itoa(a,buffer,2);   // here 2 means binary
    printf("Binary value = %s\n", buffer);

    itoa(a,buffer,10);   // here 10 means decimal
    printf("Decimal value = %s\n", buffer);

    itoa(a,buffer,16);   // here 16 means Hexadecimal
    printf("Hexadecimal value = %s\n", buffer);
    return 0;
}

Output:

Binary value = 1101010000110101
Decimal value = 54325
Hexadecimal value = D435

You can write your own itoa function,
http://www.geeksforgeeks.org/implement-itoa/

Answer 4

Function
char *itoa(int value, char *string, int radix);

DESCRIPTION
The itoa() function constructs a string representation of an integer.

PARAMETERS
value:
Is the integer to be converted to string representation.

string:
Points to the buffer that is to hold resulting string.
The resulting string may be as long as seventeen bytes.

radix:
Is the base of the number; must be in the range 2 - 36.