modfl
long double modfl(long double, long double *);
__strong_alias(modfl, modf);
LDBL_PROTO_STD_DEPRECATED(modfl);
f = modfl(__builtin_infl(), &i);
f = modfl(-__builtin_infl(), &i);
f = modfl(NAN, &i);
f = modfl(-NAN, &i);
CHECK_FPEQUAL(out, modfl(in, &ipartl));
CHECK_FPEQUAL(out, modfl(in, &ipartl));