Viewing file:  test_empty_structs_and_unions.c (1.15 KB) -rw-r--r--
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/* This tests passing and returning of empty structures and unions. */
#include "defines.h"
#include "args.h"
struct IntegerRegisters iregbits = { ~0, ~0, ~0, ~0, ~0, ~0 };
struct IntegerRegisters iregs;
unsigned int num_iregs;
struct empty_struct
{
};
struct empty_struct
check_struct_passing(struct empty_struct s0 ATTRIBUTE_UNUSED,
struct empty_struct s1 ATTRIBUTE_UNUSED,
int i0 ATTRIBUTE_UNUSED)
{
struct empty_struct s;
check_int_arguments;
return s;
}
#define check_struct_passing WRAP_CALL(check_struct_passing)
union empty_union
{
};
union empty_union
check_union_passing(union empty_union u0 ATTRIBUTE_UNUSED,
union empty_union u1 ATTRIBUTE_UNUSED,
int i0 ATTRIBUTE_UNUSED)
{
union empty_union u;
check_int_arguments;
return u;
}
#define check_union_passing WRAP_CALL(check_union_passing)
int
main (void)
{
struct empty_struct s;
union empty_union u;
clear_struct_registers;
iregs.I0 = 32;
num_iregs = 1;
clear_int_hardware_registers;
check_union_passing(u,u,32);
clear_struct_registers;
iregs.I0 = 33;
num_iregs = 1;
clear_int_hardware_registers;
check_struct_passing(s,s,33);
return 0;
}
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