Frank Mehnert <fm3@xxxxxxxxxxxxxxxxxxxx> writes:
> My problem is the following:
>
> #define BREAK_ON_ERROR(i) \
> if (1) \
> { \
> if (i < 0) \
> break; \
> } \
> else do \
> { \
> } while (0) \
>
> int foo(void)
> {
> for (;;)
> {
> int bar = 1, buzz = 2;
> if (bar)
> BREAK_ON_ERROR(buzz);
> }
> }
>
> gcc-4.3 will warn with
>
> 'warning: suggest explicit braces to avoid ambiguous `else'
Use a gcc extension.
#define BREAK_ON_ERROR(i) ({ if (i < 0) break; })
Ian
