strlen.c

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/* Area:        ffi_call
   Purpose:     Check strlen function call.
   Limitations: none.
   PR:          none.
   Originator:  From the original ffitest.c  */
 
/* { dg-do run } */
#include "ffitest.h"
 
static size_t ABI_ATTR my_strlen(char *s)
{
  return (strlen(s));
}
 
int main (void)
{
  ffi_cif cif;
  ffi_type *args[MAX_ARGS];
  void *values[MAX_ARGS];
  ffi_arg rint;
  char *s;
 
  args[0] = &ffi_type_pointer;
  values[0] = (void*) &s;
  
  /* Initialize the cif */
  CHECK(ffi_prep_cif(&cif, ABI_NUM, 1,
                     &ffi_type_sint, args) == FFI_OK);
  
  s = "a";
  ffi_call(&cif, FFI_FN(my_strlen), &rint, values);
  CHECK(rint == 1);
  
  s = "1234567";
  ffi_call(&cif, FFI_FN(my_strlen), &rint, values);
  CHECK(rint == 7);
  
  s = "1234567890123456789012345";
  ffi_call(&cif, FFI_FN(my_strlen), &rint, values);
  CHECK(rint == 25);
  
  exit (0);
}