On 12/10/2017 19:18, Toshi Morita via gcc-help wrote: > This isn't a GCC question specifically - it's more of a C language question. In my opinion, the best places to ask general C questions are either the comp.lang.c Usenet newsgroup, or sites such as Stack Overflow. Here is a convenient reference: http://port70.net/~nsz/c/c11/n1570.html#6.5.2.2 Regards.