Files
lightning/ccan/ccan/structeq/test/compile_fail-different.c
Rusty Russell fed5a117e7 Update ccan/structeq.
structeq() is too dangerous: if a structure has padding, it can fail
silently.

The new ccan/structeq instead provides a macro to define foo_eq(),
which does the right thing in case of padding (which none of our
structures currently have anyway).

Upgrade ccan, and use it everywhere.  Except run-peer-wire.c, which
is only testing code and can use raw memcmp(): valgrind will tell us
if padding exists.

Interestingly, we still declared short_channel_id_eq, even though
we didn't define it any more!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-04 23:57:00 +02:00

25 lines
307 B
C

#include <ccan/structeq/structeq.h>
struct mydata1 {
int start, end;
};
struct mydata2 {
int start, end;
};
STRUCTEQ_DEF(mydata1, 0, start, end);
int main(void)
{
struct mydata1 a = { 0, 100 };
#ifdef FAIL
struct mydata2
#else
struct mydata1
#endif
b = { 0, 100 };
return mydata1_eq(&a, &b);
}