Ruby
2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
ext
fiddle
libffi-3.2.1
testsuite
libffi.call
return_fl.c
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/* Area: ffi_call
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Purpose: Check return value float.
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Limitations: none.
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PR: none.
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Originator: <andreast@gcc.gnu.org> 20050212 */
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/* { dg-do run } */
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#include "
ffitest.h
"
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static
float
return_fl(
float
fl)
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{
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return
2 * fl;
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}
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int
main
(
void
)
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{
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ffi_cif cif;
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ffi_type *args[
MAX_ARGS
];
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void
*values[
MAX_ARGS
];
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float
fl, rfl;
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args[0] = &ffi_type_float;
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values[0] = &fl;
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/* Initialize the cif */
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CHECK
(
ffi_prep_cif
(&cif,
FFI_DEFAULT_ABI
, 1,
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&ffi_type_float, args) == FFI_OK);
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for
(fl = -127.0; fl < 127; fl++)
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{
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ffi_call
(&cif, FFI_FN(return_fl), &rfl, values);
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printf
(
"%f vs %f\n"
, rfl, return_fl(fl));
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CHECK
(rfl == 2 * fl);
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}
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exit
(0);
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}
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
exit
void exit(int __status) __attribute__((__noreturn__))
main
int main(void)
Definition:
return_fl.c:14
ffitest.h
CHECK
#define CHECK(sub)
Definition:
compile.c:448
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition:
ffitarget.h:38
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition:
prep_cif.c:226
MAX_ARGS
#define MAX_ARGS
Definition:
function.c:15
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition:
ffi.c:813
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