Hi All: i have just enable -Wall -Wextra. but seem there is no any useful infomation. just some things like: /work/smsc/include/xscmsgqueuemx.h:62: warning: unused parameter ‘seconds’ /work/smsc/include/xscmsgqueuemx.h:247: warning: unused parameter ‘pri’ xmmgiwparam.cc: In function ‘uint8 findSCerrInd(TASK_TYPE*, GIW_VAR_STR*, uint8*, uint8*, uint8*, uint8*)’: xmmgiwparam.cc:555: warning: suggest parentheses around ‘&&’ within ‘||’ xmmgiwparam.cc: At global scope: xmmgiwparam.cc:212: warning: unused parameter ‘type’ xmmgiwparam.cc:1391: warning: unused parameter ‘task’ xmmgiwparam.cc:1462: warning: unused parameter ‘task’ xmmgiwparam.cc:1574: warning: unused parameter ‘msg’ xmmgiwparam.cc: In function ‘void put_giwu_MOdataInd(GIW_VAR_STR*, giw_asn*)’: xmmgiwparam.cc:1946: warning: unused variable ‘address’ xmmgiwparam.cc: In function ‘void put_giw_up_params(MESSAGE*, PRIMITIVE, GIW_VAR_STR*)’: xmmgiwparam.cc:2055: warning: unused variable ‘alertingMSaddr’ xmmgiwparam.cc:2060: warning: unused variable ‘addr_str’ xmmgiwparam.cc: In function ‘void put_giwd_openReq(GIW_VAR_STR*, giw_asn*, ISDNAddress*)’: xmmgiwparam.cc:2915: warning: suggest parentheses around ‘&&’ within ‘||’ xmmgiwparam.cc:2933: warning: suggest parentheses around ‘&&’ within ‘||’ xmmgiwparam.cc: In function ‘void put_giwd_forwardSMReq(MESSAGE*, GIW_VAR_STR*, giw_asn*)’: xmmgiwparam.cc:3163: warning: suggest parentheses around ‘&&’ within ‘||’ xmmgiwparam.cc: At global scope: xmmgiwparam.cc:3143: warning: unused parameter ‘msg’ xmmgiwparam.cc: In function ‘void put_giw_down_params(MESSAGE*, PRIMITIVE, GIW_VAR_STR*)’: xmmgiwparam.cc:3347: warning: unused variable ‘smRPsmea’ xmmgiwparam.cc:3348: warning: unused variable ‘scAddrForHLR’ , I am wondering now, Could i add the optimization options which is enable by -O one by one? by then, hope i could find which optimization option affect my code? but I do not know what is the difference options which is owned just by -O? thanks again. On Fri, Sep 16, 2011 at 5:47 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 16 September 2011 10:12, zou wonder wrote: >> hi david: >> i have tried to enable all the warning option you provided : >> and here are some warnings: > > As Miles said, many of the warning options David suggested are not > suitable for all code, you will get most of the benefit just using > -Wall -Wextra >
