1# test ffi float support
2try:
3    import ffi
4except ImportError:
5    print("SKIP")
6    raise SystemExit
7
8
9def ffi_open(names):
10    err = None
11    for n in names:
12        try:
13            mod = ffi.open(n)
14            return mod
15        except OSError as e:
16            err = e
17    raise err
18
19
20libc = ffi_open(("libc.so", "libc.so.0", "libc.so.6", "libc.dylib"))
21
22try:
23    strtof = libc.func("f", "strtof", "sp")
24except OSError:
25    # Some libc's (e.g. Android's Bionic) define strtof as macro/inline func
26    # in terms of strtod().
27    print("SKIP")
28    raise SystemExit
29
30print("%.6f" % strtof("1.23", None))
31
32strtod = libc.func("d", "strtod", "sp")
33print("%.6f" % strtod("1.23", None))
34
35# test passing double and float args
36libm = ffi_open(("libm.so", "libm.so.6", "libc.so.0", "libc.so.6", "libc.dylib"))
37tgamma = libm.func("d", "tgamma", "d")
38for fun in (tgamma,):
39    for val in (0.5, 1, 1.0, 1.5, 4, 4.0):
40        print("%.6f" % fun(val))
41