use macro rather than constant in array size
use macro rather than constant in array size

adelez/grpc,ejona86/grpc,jtattermusch/grpc,kskalski/grpc,ipylypiv/grpc,yugui/grpc,daniel-j-born/grpc,perumaalgoog/grpc,stanley-cheung/grpc,vjpai/grpc,yongni/grpc,7anner/grpc,Crevil/grpc,muxi/grpc,soltanmm-google/grpc,kumaralokgithub/grpc,Crevil/grpc,carl-mastrangelo/grpc,thinkerou/grpc,Vizerai/grpc,geffzhang/grpc,y-zeng/grpc,carl-mastrangelo/grpc,royalharsh/grpc,kumaralokgithub/grpc,grpc/grpc,dgquintas/grpc,baylabs/grpc,LuminateWireless/grpc,donnadionne/grpc,greasypizza/grpc,hstefan/grpc,soltanmm-google/grpc,adelez/grpc,grani/grpc,jtattermusch/grpc,vsco/grpc,simonkuang/grpc,nicolasnoble/grpc,carl-mastrangelo/grpc,murgatroid99/grpc,tengyifei/grpc,soltanmm/grpc,jcanizales/grpc,dklempner/grpc,jcanizales/grpc,chrisdunelm/grpc,daniel-j-born/grpc,thinkerou/grpc,dklempner/grpc,kpayson64/grpc,wcevans/grpc,hstefan/grpc,jtattermusch/grpc,MakMukhi/grpc,Vizerai/grpc,ctiller/grpc,geffzhang/grpc,royalharsh/grpc,stanley-cheung/grpc,grpc/grpc,jboeuf/grpc,a11r/grpc,thinkerou/grpc,vsco/grpc,jcanizales/grpc,quizlet/grpc,sreecha/grpc,firebase/grpc,grpc/grpc,hstefan/grpc,grani/grpc,ejona86/grpc,jtattermusch/grpc,jtattermusch/grpc,mehrdada/grpc,ppietrasa/grpc,pmarks-net/grpc,makdharma/grpc,thinkerou/grpc,fuchsia-mirror/third_party-grpc,quizlet/grpc,yang-g/grpc,murgatroid99/grpc,wcevans/grpc,murgatroid99/grpc,quizlet/grpc,zhimingxie/grpc,ipylypiv/grpc,dklempner/grpc,stanley-cheung/grpc,perumaalgoog/grpc,grani/grpc,fuchsia-mirror/third_party-grpc,rjshade/grpc,MakMukhi/grpc,sreecha/grpc,muxi/grpc,dgquintas/grpc,rjshade/grpc,grani/grpc,ejona86/grpc,philcleveland/grpc,dgquintas/grpc,7anner/grpc,PeterFaiman/ruby-grpc-minimal,mehrdada/grpc,donnadionne/grpc,PeterFaiman/ruby-grpc-minimal,grpc/grpc,MakMukhi/grpc,MakMukhi/grpc,soltanmm/grpc,kskalski/grpc,philcleveland/grpc,sreecha/grpc,dklempner/grpc,wcevans/grpc,nicolasnoble/grpc,yang-g/grpc,jboeuf/grpc,vsco/grpc,ncteisen/grpc,yongni/grpc,andrewpollock/grpc,andrewpollock/grpc,muxi/grpc,ejona86/grpc,ipylypiv/grpc,sreecha/grpc,PeterFaiman/ruby-grpc-minimal,donnadionne/grpc,ejona86/grpc,kpayson64/grpc,donnadionne/grpc,yongni/grpc,simonkuang/grpc,ppietrasa/grpc,apolcyn/grpc,chrisdunelm/grpc,Vizerai/grpc,vjpai/grpc,7anner/grpc,soltanmm-google/grpc,perumaalgoog/grpc,mehrdada/grpc,greasypizza/grpc,a11r/grpc,rjshade/grpc,deepaklukose/grpc,yang-g/grpc,ncteisen/grpc,perumaalgoog/grpc,vsco/grpc,LuminateWireless/grpc,yongni/grpc,ipylypiv/grpc,hstefan/grpc,chrisdunelm/grpc,thunderboltsid/grpc,baylabs/grpc,dklempner/grpc,vjpai/grpc,vjpai/grpc,a11r/grpc,pmarks-net/grpc,jboeuf/grpc,apolcyn/grpc,hstefan/grpc,simonkuang/grpc,ppietrasa/grpc,hstefan/grpc,Crevil/grpc,kskalski/grpc,soltanmm-google/grpc,matt-kwong/grpc,perumaalgoog/grpc,soltanmm-google/grpc,ejona86/grpc,jtattermusch/grpc,chrisdunelm/grpc,vjpai/grpc,firebase/grpc,soltanmm/grpc,donnadionne/grpc,thinkerou/grpc,royalharsh/grpc,kumaralokgithub/grpc,ctiller/grpc,7anner/grpc,y-zeng/grpc,yugui/grpc,wcevans/grpc,jboeuf/grpc,geffzhang/grpc,carl-mastrangelo/grpc,daniel-j-born/grpc,thunderboltsid/grpc,Vizerai/grpc,Vizerai/grpc,vsco/grpc,simonkuang/grpc,kpayson64/grpc,LuminateWireless/grpc,dgquintas/grpc,yang-g/grpc,rjshade/grpc,deepaklukose/grpc,adelez/grpc,apolcyn/grpc,quizlet/grpc,ejona86/grpc,a11r/grpc,y-zeng/grpc,stanley-cheung/grpc,soltanmm/grpc,kumaralokgithub/grpc,ctiller/grpc,chrisdunelm/grpc,yongni/grpc,simonkuang/grpc,kpayson64/grpc,grani/grpc,andrewpollock/grpc,philcleveland/grpc,fuchsia-mirror/third_party-grpc,infinit/grpc,LuminateWireless/grpc,zhimingxie/grpc,pmarks-net/grpc,soltanmm-google/grpc,ctiller/grpc,thunderboltsid/grpc,ctiller/grpc,quizlet/grpc,murgatroid99/grpc,nicolasnoble/grpc,Vizerai/grpc,dklempner/grpc,ncteisen/grpc,yugui/grpc,soltanmm/grpc,LuminateWireless/grpc,nicolasnoble/grpc,jtattermusch/grpc,adelez/grpc,msmania/grpc,apolcyn/grpc,sreecha/grpc,mehrdada/grpc,y-zeng/grpc,7anner/grpc,dklempner/grpc,yang-g/grpc,Vizerai/grpc,pszemus/grpc,nicolasnoble/grpc,thunderboltsid/grpc,wcevans/grpc,thinkerou/grpc,nicolasnoble/grpc,pszemus/grpc,vsco/grpc,quizlet/grpc,fuchsia-mirror/third_party-grpc,grpc/grpc,mehrdada/grpc,thinkerou/grpc,kpayson64/grpc,muxi/grpc,mehrdada/grpc,philcleveland/grpc,y-zeng/grpc,ncteisen/grpc,deepaklukose/grpc,sreecha/grpc,ejona86/grpc,Vizerai/grpc,jboeuf/grpc,philcleveland/grpc,kriswuollett/grpc,murgatroid99/grpc,thunderboltsid/grpc,kpayson64/grpc,grpc/grpc,kumaralokgithub/grpc,dklempner/grpc,geffzhang/grpc,grani/grpc,daniel-j-born/grpc,sreecha/grpc,kriswuollett/grpc,royalharsh/grpc,rjshade/grpc,yugui/grpc,yang-g/grpc,thinkerou/grpc,carl-mastrangelo/grpc,mehrdada/grpc,malexzx/grpc,carl-mastrangelo/grpc,msmania/grpc,firebase/grpc,fuchsia-mirror/third_party-grpc,infinit/grpc,MakMukhi/grpc,ejona86/grpc,ctiller/grpc,tengyifei/grpc,zhimingxie/grpc,muxi/grpc,baylabs/grpc,murgatroid99/grpc,donnadionne/grpc,kskalski/grpc,fuchsia-mirror/third_party-grpc,tengyifei/grpc,msmania/grpc,yugui/grpc,thunderboltsid/grpc,andrewpollock/grpc,sreecha/grpc,daniel-j-born/grpc,a11r/grpc,PeterFaiman/ruby-grpc-minimal,apolcyn/grpc,Crevil/grpc,yongni/grpc,nicolasnoble/grpc,ejona86/grpc,baylabs/grpc,Vizerai/grpc,thunderboltsid/grpc,infinit/grpc,thinkerou/grpc,vsco/grpc,dgquintas/grpc,stanley-cheung/grpc,matt-kwong/grpc,stanley-cheung/grpc,adelez/grpc,deepaklukose/grpc,jcanizales/grpc,soltanmm/grpc,andrewpollock/grpc,PeterFaiman/ruby-grpc-minimal,a11r/grpc,pszemus/grpc,baylabs/grpc,donnadionne/grpc,donnadionne/grpc,yugui/grpc,kskalski/grpc,makdharma/grpc,greasypizza/grpc,fuchsia-mirror/third_party-grpc,chrisdunelm/grpc,grpc/grpc,soltanmm-google/grpc,y-zeng/grpc,pszemus/grpc,soltanmm-google/grpc,PeterFaiman/ruby-grpc-minimal,sreecha/grpc,grpc/grpc,tengyifei/grpc,firebase/grpc,thinkerou/grpc,nicolasnoble/grpc,pmarks-net/grpc,infinit/grpc,ctiller/grpc,murgatroid99/grpc,malexzx/grpc,zhimingxie/grpc,adelez/grpc,a11r/grpc,yongni/grpc,pszemus/grpc,msmania/grpc,makdharma/grpc,kskalski/grpc,daniel-j-born/grpc,muxi/grpc,royalharsh/grpc,grpc/grpc,kpayson64/grpc,donnadionne/grpc,simonkuang/grpc,PeterFaiman/ruby-grpc-minimal,ctiller/grpc,daniel-j-born/grpc,greasypizza/grpc,kumaralokgithub/grpc,a-veitch/grpc,wcevans/grpc,tengyifei/grpc,yang-g/grpc,greasypizza/grpc,ctiller/grpc,wcevans/grpc,greasypizza/grpc,ctiller/grpc,nicolasnoble/grpc,philcleveland/grpc,murgatroid99/grpc,jtattermusch/grpc,kriswuollett/grpc,matt-kwong/grpc,LuminateWireless/grpc,7anner/grpc,zhimingxie/grpc,malexzx/grpc,perumaalgoog/grpc,grani/grpc,kskalski/grpc,sreecha/grpc,simonkuang/grpc,malexzx/grpc,kriswuollett/grpc,kumaralokgithub/grpc,PeterFaiman/ruby-grpc-minimal,MakMukhi/grpc,rjshade/grpc,grani/grpc,deepaklukose/grpc,firebase/grpc,infinit/grpc,royalharsh/grpc,chrisdunelm/grpc,firebase/grpc,firebase/grpc,makdharma/grpc,ncteisen/grpc,Crevil/grpc,chrisdunelm/grpc,baylabs/grpc,royalharsh/grpc,ncteisen/grpc,matt-kwong/grpc,pmarks-net/grpc,ejona86/grpc,kpayson64/grpc,apolcyn/grpc,LuminateWireless/grpc,vjpai/grpc,pszemus/grpc,malexzx/grpc,pmarks-net/grpc,ctiller/grpc,stanley-cheung/grpc,vjpai/grpc,yongni/grpc,tengyifei/grpc,mehrdada/grpc,stanley-cheung/grpc,nicolasnoble/grpc,zhimingxie/grpc,jboeuf/grpc,yongni/grpc,murgatroid99/grpc,7anner/grpc,a-veitch/grpc,a-veitch/grpc,grani/grpc,hstefan/grpc,thinkerou/grpc,tengyifei/grpc,daniel-j-born/grpc,Crevil/grpc,kskalski/grpc,7anner/grpc,a-veitch/grpc,kriswuollett/grpc,jboeuf/grpc,a-veitch/grpc,adelez/grpc,soltanmm/grpc,donnadionne/grpc,muxi/grpc,ncteisen/grpc,yang-g/grpc,rjshade/grpc,dgquintas/grpc,apolcyn/grpc,ipylypiv/grpc,quizlet/grpc,muxi/grpc,pmarks-net/grpc,kriswuollett/grpc,pszemus/grpc,jtattermusch/grpc,carl-mastrangelo/grpc,quizlet/grpc,geffzhang/grpc,geffzhang/grpc,deepaklukose/grpc,donnadionne/grpc,msmania/grpc,kpayson64/grpc,malexzx/grpc,firebase/grpc,malexzx/grpc,pszemus/grpc,makdharma/grpc,soltanmm/grpc,deepaklukose/grpc,LuminateWireless/grpc,ncteisen/grpc,geffzhang/grpc,adelez/grpc,Crevil/grpc,dgquintas/grpc,jtattermusch/grpc,chrisdunelm/grpc,dgquintas/grpc,carl-mastrangelo/grpc,dgquintas/grpc,grpc/grpc,yang-g/grpc,kriswuollett/grpc,greasypizza/grpc,pszemus/grpc,baylabs/grpc,pmarks-net/grpc,daniel-j-born/grpc,rjshade/grpc,firebase/grpc,jtattermusch/grpc,greasypizza/grpc,deepaklukose/grpc,mehrdada/grpc,matt-kwong/grpc,matt-kwong/grpc,carl-mastrangelo/grpc,stanley-cheung/grpc,makdharma/grpc,dgquintas/grpc,pszemus/grpc,a11r/grpc,fuchsia-mirror/third_party-grpc,simonkuang/grpc,grpc/grpc,pmarks-net/grpc,y-zeng/grpc,ipylypiv/grpc,vjpai/grpc,donnadionne/grpc,Vizerai/grpc,infinit/grpc,ctiller/grpc,MakMukhi/grpc,Crevil/grpc,Crevil/grpc,y-zeng/grpc,ncteisen/grpc,jcanizales/grpc,vjpai/grpc,MakMukhi/grpc,perumaalgoog/grpc,wcevans/grpc,ppietrasa/grpc,mehrdada/grpc,baylabs/grpc,malexzx/grpc,msmania/grpc,rjshade/grpc,kskalski/grpc,a-veitch/grpc,chrisdunelm/grpc,carl-mastrangelo/grpc,malexzx/grpc,a11r/grpc,LuminateWireless/grpc,zhimingxie/grpc,sreecha/grpc,jcanizales/grpc,yugui/grpc,murgatroid99/grpc,jboeuf/grpc,geffzhang/grpc,ppietrasa/grpc,simonkuang/grpc,kpayson64/grpc,firebase/grpc,yugui/grpc,ejona86/grpc,geffzhang/grpc,vjpai/grpc,andrewpollock/grpc,infinit/grpc,PeterFaiman/ruby-grpc-minimal,matt-kwong/grpc,thunderboltsid/grpc,ipylypiv/grpc,matt-kwong/grpc,soltanmm-google/grpc,ipylypiv/grpc,jcanizales/grpc,tengyifei/grpc,hstefan/grpc,makdharma/grpc,muxi/grpc,jboeuf/grpc,quizlet/grpc,matt-kwong/grpc,kriswuollett/grpc,ppietrasa/grpc,stanley-cheung/grpc,deepaklukose/grpc,carl-mastrangelo/grpc,andrewpollock/grpc,7anner/grpc,greasypizza/grpc,apolcyn/grpc,ncteisen/grpc,nicolasnoble/grpc,jboeuf/grpc,carl-mastrangelo/grpc,tengyifei/grpc,infinit/grpc,thinkerou/grpc,ncteisen/grpc,sreecha/grpc,philcleveland/grpc,a-veitch/grpc,jtattermusch/grpc,ppietrasa/grpc,mehrdada/grpc,muxi/grpc,firebase/grpc,andrewpollock/grpc,zhimingxie/grpc,kumaralokgithub/grpc,royalharsh/grpc,jboeuf/grpc,jboeuf/grpc,pszemus/grpc,Vizerai/grpc,yugui/grpc,philcleveland/grpc,muxi/grpc,pszemus/grpc,dgquintas/grpc,vsco/grpc,a-veitch/grpc,PeterFaiman/ruby-grpc-minimal,a-veitch/grpc,chrisdunelm/grpc,fuchsia-mirror/third_party-grpc,makdharma/grpc,ipylypiv/grpc,muxi/grpc,ncteisen/grpc,stanley-cheung/grpc,nicolasnoble/grpc,perumaalgoog/grpc,thunderboltsid/grpc,andrewpollock/grpc,msmania/grpc,ppietrasa/grpc,msmania/grpc,adelez/grpc,apolcyn/grpc,hstefan/grpc,ppietrasa/grpc,kpayson64/grpc,makdharma/grpc,wcevans/grpc,kumaralokgithub/grpc,msmania/grpc,perumaalgoog/grpc,dklempner/grpc,royalharsh/grpc,jcanizales/grpc,y-zeng/grpc,vsco/grpc,grpc/grpc,vjpai/grpc,philcleveland/grpc,mehrdada/grpc,zhimingxie/grpc,infinit/grpc,baylabs/grpc,vjpai/grpc,kriswuollett/grpc,jcanizales/grpc,MakMukhi/grpc,stanley-cheung/grpc,soltanmm/grpc,fuchsia-mirror/third_party-grpc,firebase/grpc