Ruby
2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
ext
fiddle
libffi-3.2.1
testsuite
libffi.call
strlen.c
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1
/* Area: ffi_call
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Purpose: Check strlen function call.
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Limitations: none.
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PR: none.
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Originator: From the original ffitest.c */
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/* { dg-do run } */
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#include "
ffitest.h
"
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static
size_t
ABI_ATTR
my_strlen(
char
*s)
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{
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return
(
strlen
(s));
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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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ffi_arg
rint
;
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char
*s;
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args[0] = &ffi_type_pointer;
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values[0] = (
void
*) &s;
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/* Initialize the cif */
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CHECK
(
ffi_prep_cif
(&cif,
ABI_NUM
, 1,
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&ffi_type_sint, args) == FFI_OK);
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s =
"a"
;
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ffi_call
(&cif, FFI_FN(my_strlen), &
rint
, values);
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CHECK
(
rint
== 1);
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s =
"1234567"
;
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ffi_call
(&cif, FFI_FN(my_strlen), &
rint
, values);
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CHECK
(
rint
== 7);
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s =
"1234567890123456789012345"
;
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ffi_call
(&cif, FFI_FN(my_strlen), &
rint
, values);
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CHECK
(
rint
== 25);
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exit
(0);
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}
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ffi_arg
unsigned long ffi_arg
Definition:
ffitarget.h:30
main
int main(void)
Definition:
strlen.c:15
ABI_NUM
#define ABI_NUM
Definition:
ffitest.h:35
exit
void exit(int __status) __attribute__((__noreturn__))
strlen
size_t strlen(const char *)
ffitest.h
CHECK
#define CHECK(sub)
Definition:
compile.c:448
rint
double rint(double)
ABI_ATTR
#define ABI_ATTR
Definition:
ffitest.h:36
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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