BUGFIX fixed signed-unsigned comparison warnings
BUGFIX fixed signed-unsigned comparison warnings

HolyGeneralK/arrayfire,munnybearz/arrayfire,asifmadnan/arrayfire,pentschev/arrayfire,linan7788626/arrayfire,unbornchikken/arrayfire,marbre/arrayfire,Keno/arrayfire,HolyGeneralK/arrayfire,ghisvail/arrayfire,merlin-ext/arrayfire,ghisvail/arrayfire,pombredanne/arrayfire,hshindo/arrayfire,Keno/arrayfire,bkloppenborg/arrayfire,hshindo/arrayfire,linan7788626/arrayfire,ghisvail/arrayfire,mrgloom/arrayfire,bkloppenborg/arrayfire,9prady9/arrayfire,HolyGeneralK/arrayfire,shehzan10/arrayfire,asifmadnan/arrayfire,ghisvail/arrayfire,hshindo/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,unbornchikken/arrayfire,pombredanne/arrayfire,Keno/arrayfire,bkloppenborg/arrayfire,victorv/arrayfire,Keno/arrayfire,pombredanne/arrayfire,munnybearz/arrayfire,pombredanne/arrayfire,jramapuram/arrayfire,arrayfire/arrayfire,mrgloom/arrayfire,bkloppenborg/arrayfire,asifmadnan/arrayfire,pentschev/arrayfire,hshindo/arrayfire,shehzan10/arrayfire,9prady9/arrayfire,umar456/arrayfire,pentschev/arrayfire,jramapuram/arrayfire,shehzan10/arrayfire,merlin-ext/arrayfire,shehzan10/arrayfire,mrgloom/arrayfire,umar456/arrayfire,munnybearz/arrayfire,marbre/arrayfire,merlin-ext/arrayfire,marbre/arrayfire,unbornchikken/arrayfire,umar456/arrayfire,asifmadnan/arrayfire,unbornchikken/arrayfire,HolyGeneralK/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,marbre/arrayfire,pentschev/arrayfire,jramapuram/arrayfire,victorv/arrayfire,arrayfire/arrayfire,merlin-ext/arrayfire,linan7788626/arrayfire,victorv/arrayfire,jramapuram/arrayfire,mrgloom/arrayfire,victorv/arrayfire,linan7788626/arrayfire