Programming

In a declaration, I have:

const char comment_begin[] = "<!--";
const char comment_end[] = "-->";

const int comment_begin_len = strlen(comment_begin);
const int comment_end_len = strlen(comment_end);


When I compile, I get the warnings:

emhttpc.c:64: warning: initializer element is not constant
emhttpc.c:64: warning: (near initialization for ‘comment_begin_len')
emhttpc.c:65: warning: initializer element is not constant
emhttpc.c:65: warning: (near initialization for ‘comment_end_len')


Taking the 'const' doesn't make any difference. I could use 'sizeof', but it gives one greater than the length (is it counting a null terminator?). I'm not sure why it says it's not constant as I'm doing a strlen on a pair of constant strings, so their length can't change.

What platform are you on and what header files are included?

#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <resolv.h>
#include <sys/ioctl.h>
#include <sys/socket.h>

Ubuntu 8.04

The code snippet you posted compiles and runs flawlessly on AIX. What happens if you remove the const qualifier...does it compile then.

Taking the 'const' off gave the same results.

FWIW - strlen returns a size_t, not an int.

I have the constants now declared as:

const size_t comment_begin_len = strlen(comment_begin);
const size_t comment_end_len = strlen(comment_end);


and get the same result:

emhttpc.c:65: warning: initializer element is not constant
emhttpc.c:65: warning: (near initialization for ‘comment_begin_len')
emhttpc.c:66: warning: initializer element is not constant
emhttpc.c:66: warning: (near initialization for ‘comment_end_len')