On Mon, Jul 02, 2001, Shaul Karl wrote about "(main_buf = *main_buf_p) is not
syntacticly like (i = *j) ?":
> #include <setjmp.h>
>
> int main()
> {
> jmp_buf test_env;
> jmp_buf *test_env_p = &test_env;
>
> test_env = *test_env_p;
> return 0;
> }
> jmp_test.c:9: incompatible types in assignment
>
> What did I miss?
Well, the problem is the definition of jmp_buf: in Linux,
typedef struct ... jmp_buf[1];
Which means the jmp_buf type is an array. In C you can't normally assign
arrays like you did (because C thinks you're trying to assign pointers, rather
than the content of the array), so either do
*test_env=**test_env_p;
(to assign the first element, but this is highly dependent on the linux
implementation),
or the more portable (and thus better) approach is to use memcpy() to copy a
jmp_buf.
BTW, don't forget the following "NOTES" from the Linux setjmp() manual:
"setjmp() and sigsetjmp make programs hard to understand
and maintain. If possible an alternative should be used."
--
Nadav Har'El | Monday, Jul 2 2001, 11 Tammuz 5761
[EMAIL PROTECTED] |-----------------------------------------
Phone: +972-53-245868, ICQ 13349191 |Experience is what causes a person to
http://nadav.harel.org.il |make new mistakes instead of old ones.
=================================================================
To unsubscribe, send mail to [EMAIL PROTECTED] with
the word "unsubscribe" in the message body, e.g., run the command
echo unsubscribe | mail [EMAIL PROTECTED]
