58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
/* Area: ffi_call
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Purpose: Check structures.
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Limitations: none.
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PR: none.
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Originator: Sergei Trofimovich <slyfox@gentoo.org>
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The test originally discovered in ruby's bindings
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for ffi in https://bugs.gentoo.org/634190 */
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/* { dg-do run } */
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#include "ffitest.h"
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struct s {
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int s32;
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float f32;
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signed char s8;
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};
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struct s make_s(void) {
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struct s r;
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r.s32 = 0x1234;
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r.f32 = 7.0;
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r.s8 = 0x78;
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return r;
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}
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int main() {
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ffi_cif cif;
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struct s r;
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ffi_type rtype;
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ffi_type* s_fields[] = {
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&ffi_type_sint,
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&ffi_type_float,
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&ffi_type_schar,
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NULL,
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};
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rtype.size = 0;
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rtype.alignment = 0,
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rtype.type = FFI_TYPE_STRUCT,
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rtype.elements = s_fields,
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r.s32 = 0xbad;
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r.f32 = 999.999;
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r.s8 = 0x51;
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// Here we emulate the following call:
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//r = make_s();
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CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 0, &rtype, NULL) == FFI_OK);
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ffi_call(&cif, FFI_FN(make_s), &r, NULL);
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CHECK(r.s32 == 0x1234);
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CHECK(r.f32 == 7.0);
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CHECK(r.s8 == 0x78);
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exit(0);
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}
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