1 #include <complex.h> 2 3 struct st 4 { 5 int s1; 6 float complex x; 7 int s2; 8 }; 9 10 typedef struct { float r, i; } _complex; 11 12 struct stc 13 { 14 int s1; 15 _complex x; 16 int s2; 17 }; 18