/in/ex1.c: In function 'main':
/in/ex1.c:10:20: warning: unused variable 'b' [-Wunused-variable]
     double complex b = f + g * _Complex_I;
                    ^
/in/ex1.c:9:20: warning: unused variable 'a' [-Wunused-variable]
     double complex a = d + e * _Complex_I;
                    ^
/in/ex1.c:9:26: warning: 'e' is used uninitialized in this function [-Wuninitialized]
     double complex a = d + e * _Complex_I;
                          ^
/in/ex1.c:9:26: warning: 'd' is used uninitialized in this function [-Wuninitialized]
/in/ex1.c:10:26: warning: 'g' is used uninitialized in this function [-Wuninitialized]
     double complex b = f + g * _Complex_I;
                          ^
/in/ex1.c:10:26: warning: 'f' is used uninitialized in this function [-Wuninitialized]