1 /* Area: ffi_call 2 Purpose: Check return value unsigned char. 3 Limitations: none. 4 PR: none. 5 Originator: From the original ffitest.c */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 static unsigned char return_uc(unsigned char uc) 11 { 12 return uc; 13 } 14 15 int main (void) 16 { 17 ffi_cif cif; 18 ffi_type *args[MAX_ARGS]; 19 void *values[MAX_ARGS]; 20 ffi_arg rint; 21 22 unsigned char uc; 23 24 args[0] = &ffi_type_uchar; 25 values[0] = &uc; 26 27 /* Initialize the cif */ 28 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, 29 &ffi_type_uchar, args) == FFI_OK); 30 31 for (uc = (unsigned char) '\x00'; 32 uc < (unsigned char) '\xff'; uc++) 33 { 34 ffi_call(&cif, FFI_FN(return_uc), &rint, values); 35 CHECK(rint == (signed int) uc); 36 } 37 exit(0); 38 } 39
