Function expl

src/libmath/expl.c:71–74

#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double expl(long double x)
{
    return exp(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384

static const long double P[3] = {