Author
anonymous
over 6 years ago
C
gcc 8.2.0
$ gcc prog.c -Wall -Wextra -std=gnu11
prog.c: In function 'main': prog.c:7:13: warning: operation on 'a' may be undefined [-Wsequence-point] b=square(a++); ~^~ prog.c:2:19: note: in definition of macro 'square' #define square(x) x*x ^ a:4 b:6
prog.c: In function 'main': prog.c:7:13: warning: operation on 'a' may be undefined [-Wsequence-point] b=square(a++); ~^~ prog.c:2:19: note: in definition of macro 'square' #define square(x) x*x ^
a:4 b:6