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a c compiler error

JackieChan · 2006-06-15 06:47:27

Guys, I'm trying to compile a simple enough c script on a HP UX box using gcc. I'm receiving the following error 'incompatible implicit declaration of built-in function 'strlen' ' The line in question simply reads cnt1=strlen(argv[1]); Any advice? JC

15-06-2006 07:47AM

#1

JackieChan

Closed Accounts Posts: 1,780 ✭✭✭

Join Date: May 2004

Posts: 1587

Guys, I'm trying to compile a simple enough c script on a HP UX box using gcc.
I'm receiving the following error
'incompatible implicit declaration of built-in function 'strlen' '

The line in question simply reads cnt1=strlen(argv[1]);
Any advice?
JC

0

Comments

#2 15-06-2006 07:58AM

Blinder

Registered Users, Registered Users 2 Posts: 243 ✭✭

Join Date: September 2005

Posts: 234

Have you included the correct h file?
#include <string.h>

0
#3 15-06-2006 08:09AM

daymobrew

Registered Users, Registered Users 2 Posts: 6,655 ✭✭✭

Join Date: July 2004

Posts: 6131

Are you including strings.h? And what is argv declared as.
Post more code.
Useless sample of usage below:
[PHP]#include <strings.h>

int main(int argc, const char *argv[])
{
int cnt1;
if ( argc >= 2 ) /* Gotta ensure there is an argv[1] to check. */
cnt1 = strlen(argv[1]);

return 0;
}[/PHP]

0
#4 15-06-2006 05:55PM

JackieChan

Closed Accounts Posts: 1,780 ✭✭✭

Join Date: May 2004

Posts: 1587

Guys,
thanks for your help.
the problem was that string.h was not included.

JC

0