circuitpython/tests/unix/ffi_float2.py

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# 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
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libm = ffi_open(("libm.so", "libm.so.6", "libc.so.0", "libc.so.6", "libc.dylib"))
# Some libc's implement tgammaf as header macro with tgamma(), so don't assume
# it'll be in library.
try:
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tgammaf = libm.func("f", "tgammaf", "f")
except OSError:
print("SKIP")
raise SystemExit
for fun in (tgammaf,):
for val in (0.5, 1, 1.0, 1.5, 4, 4.0):
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print("%.6f" % fun(val))