On 02/05/2015 07:16 PM, wangwzc wrote:
I use gcc version 3.4.4, build the following lines, but it the following error, what does it means, it seem no error according the C99 standard. Is it a gcc bug? sctp_input.c:3928:1: pasting "sctps_ch_rcvd" and "[" does not give a valid preprocessing token #define SCTP_CHUNK_STAT_INCR(chk_id, name) \ atomic_add_int(&sctpstat.sctps_ch_##name##[chk_id], 1);
The result of the ## operator is required by the C standard to be a valid preprocessing token. In the case above, the result of ...rcvd ## [ is not a valid token (it would be two), and hence the diagnostic. The second ## operator serves no useful purpose and should be removed. Martin
