convert number to string

convert number to string

[Tom Tran]

I am trying to convert a number to a string. The C book I have states
that the function is in stdlib.h, For example, the syntax for itoa() is:

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

Here is my convtst.c:

#include <stdio.h>
#include <stdlib.h>
main()
{
   char *s[17];
   int x = 1234;
   itoa(x, s, 10);
   printf("%s\n", s);
   return 0;
 }
I compiled the program as:    gcc convtst.c -oconvtst
gcc gave error: undefined reference to atoi

Is there a function to convert float to string, s.a. ftoa()?, in stdlib

Please help.  Thanks.
Tom Tran

Re: convert number to string

[Segher Boessenkool]

> I am trying to convert a number to a string. The C book I have states
> that the function is in stdlib.h, For example, the syntax for itoa() 
> is:

Have a look at sprintf() (or better, snprintf()).


Segher

Re: convert number to string

[Tom Tran]

Please disregard the question. I can use sprintf() to convert number to
string.

Thank you.
Tom Tran

Tom Tran wrote:

> I am trying to convert a number to a string. The C book I have states
> that the function is in stdlib.h, For example, the syntax for itoa() is:
>
>         char *itoa(int value, char *string, int radix)
>
> Here is my convtst.c:
>
> #include <stdio.h>
> #include <stdlib.h>
> main()
> {
>    char *s[17];
>    int x = 1234;
>    itoa(x, s, 10);
>    printf("%s\n", s);
>    return 0;
>  }
> I compiled the program as:    gcc convtst.c -oconvtst
> gcc gave error: undefined reference to atoi
>
> Is there a function to convert float to string, s.a. ftoa()?, in stdlib
>
> Please help.  Thanks.
> Tom Tran

Re: convert number to string

[Kartik Raghavan]

----- Original Message ----- 
From: "Segher Boessenkool" <segher@kernel.crashing.org>
To: "Tom Tran" <tom.tran@noaa.gov>
Cc: <gcc-help@gcc.gnu.org>
Sent: Thursday, December 18, 2003 11:44 PM
Subject: Re: convert number to string


> > I am trying to convert a number to a string. The C book I have states
> > that the function is in stdlib.h, For example, the syntax for itoa() 
> > is:
> 
> Have a look at sprintf() (or better, snprintf()).
> 
> 
> Segher
> 
> 

You can try strtoul() or strtol().