Hi ! help please

[Jonathan Wakely]

On 1 January 2016 at 15:04, user user wrote:
> Hi ! help please
> if((result=f())==0)
> is Undefined behavior ?

This question is not appropriate on this mailing list, because it's
not about GCC. Please find somewhere more appropriate for general C
programming questions, such as http://stackoverflow.com

In general, no, it's not undefined behaviour (why would it be?).
However if f() modifies result (e.g. because it's a global variable)
then it is undefined.