11.1.2.2 struct x1f4_fxdata_type

typedef struct x1f4_fxdata_type {
    union {
	X1f4_E4_C_BILL bill;
	X1f4_E4_C_MODE mode;
	X1f4_E4_C_REAL real;
	X1f4_E4_C_TEXT text;
	X1f4_E4_C_USER user;
    } data;
} x1f4_fxdata_type;

The struct x1f4_fxdata_type record sizes the C interface aime data types. No variable value, function argument or evaluation result have a larger size.

See C Types.