You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.2 KiB
49 lines
1.2 KiB
# test ffi float support
|
|
try:
|
|
import ffi
|
|
except ImportError:
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
|
|
def ffi_open(names):
|
|
err = None
|
|
for n in names:
|
|
try:
|
|
mod = ffi.open(n)
|
|
return mod
|
|
except OSError as e:
|
|
err = e
|
|
raise err
|
|
|
|
|
|
libc = ffi_open(("libc.so", "libc.so.0", "libc.so.6", "libc.dylib"))
|
|
|
|
try:
|
|
strtof = libc.func("f", "strtof", "sp")
|
|
except OSError:
|
|
# Some libc's (e.g. Android's Bionic) define strtof as macro/inline func
|
|
# in terms of strtod().
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
print("%.6f" % strtof("1.23", None))
|
|
|
|
strtod = libc.func("d", "strtod", "sp")
|
|
print("%.6f" % strtod("1.23", None))
|
|
|
|
# test passing double and float args
|
|
libm = ffi_open(("libm.so", "libm.so.6", "libc.so.0", "libc.so.6", "libc.dylib"))
|
|
tgamma = libm.func("d", "tgamma", "d")
|
|
for fun_name in ("tgamma",):
|
|
fun = globals()[fun_name]
|
|
for val in (0.5, 1, 1.0, 1.5, 4, 4.0):
|
|
print(fun_name, "%.5f" % fun(val))
|
|
|
|
# test passing 2x float/double args
|
|
powf = libm.func("f", "powf", "ff")
|
|
pow = libm.func("d", "pow", "dd")
|
|
for fun_name in ("powf", "pow"):
|
|
fun = globals()[fun_name]
|
|
for args in ((0, 1), (1, 0), (2, 0.5), (3, 4)):
|
|
print(fun_name, "%.5f" % fun(*args))
|
|
|