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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
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 in (tgamma,):
for val in (0.5, 1, 1.0, 1.5, 4, 4.0):
print('%.6f' % fun(val))
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