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111
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1 /* Area: ffi_call
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2 Purpose: Check that negative integers are passed correctly.
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3 Limitations: none.
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4 PR: none.
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5 Originator: From the original ffitest.c */
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6
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7 /* { dg-do run } */
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8
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9 #include "ffitest.h"
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10
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11 static int checking(int a, short b, signed char c)
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12 {
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13
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14 return (a < 0 && b < 0 && c < 0);
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15 }
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16
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17 int main (void)
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18 {
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19 ffi_cif cif;
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20 ffi_type *args[MAX_ARGS];
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21 void *values[MAX_ARGS];
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22 ffi_arg rint;
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23
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24 signed int si;
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25 signed short ss;
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26 signed char sc;
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27
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28 args[0] = &ffi_type_sint;
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29 values[0] = &si;
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30 args[1] = &ffi_type_sshort;
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31 values[1] = &ss;
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32 args[2] = &ffi_type_schar;
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33 values[2] = ≻
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34
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35 /* Initialize the cif */
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36 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3,
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37 &ffi_type_sint, args) == FFI_OK);
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38
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39 si = -6;
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40 ss = -12;
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41 sc = -1;
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42
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43 checking (si, ss, sc);
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44
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45 ffi_call(&cif, FFI_FN(checking), &rint, values);
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46
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47 printf ("%d vs %d\n", (int)rint, checking (si, ss, sc));
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48
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49 CHECK(rint != 0);
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50
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51 exit (0);
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52 }
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