Compilare: user.cpp: In function ‘int caz0(int*, int, int, int)’: user.cpp:14:27: warning: left operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:14:26: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:14:32: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:16:23: warning: left operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp:16:30: warning: right operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp:16:29: warning: right operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp: In function ‘int caz1(int*, int, int, int)’: user.cpp:28:27: warning: left operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:28:26: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:28:32: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:30:23: warning: left operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp:30:30: warning: right operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp:30:29: warning: right operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x); ^ user.cpp: In function ‘int caz2(int*, int, int, int)’: user.cpp:41:27: warning: left operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:41:26: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:41:32: warning: right operand of comma operator has no effect [-Wunused-value] return (a,mid+1,hi,x); ^ user.cpp:43:23: warning: left operand of comma operator has no effect [-Wunused-value] return (a,lo,mid-1,x);