diff options
Diffstat (limited to 'src/asin.c')
| -rw-r--r-- | src/asin.c | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -87,7 +87,7 @@ mpc_asin (mpc_ptr rop, mpc_srcptr op, mpc_rnd_t rnd) mpfr_rnd_t rnd_re, rnd_im; mpc_t z1; int inex, inex_re, inex_im, loop = 0; - mpfr_exp_t saved_emin, saved_emax, err; + mpfr_exp_t saved_emin, saved_emax, err, olderr; /* special values */ if (mpfr_nan_p (mpc_realref (op)) || mpfr_nan_p (mpc_imagref (op))) @@ -206,13 +206,14 @@ mpc_asin (mpc_ptr rop, mpc_srcptr op, mpc_rnd_t rnd) rnd_im = MPC_RND_IM(rnd); p = p_re >= p_im ? p_re : p_im; mpc_init2 (z1, p); - err = 0; /* number of lost bits */ + olderr = err = 0; /* number of lost bits */ while (1) { mpfr_exp_t ex, ey; loop ++; - p += err; /* add number of lost bits in previous loop */ + p += err - olderr; /* add extra number of lost bits in previous loop */ + olderr = err; p += (loop <= 2) ? mpc_ceil_log2 (p) + 3 : p / 2; mpfr_set_prec (mpc_realref(z1), p); mpfr_set_prec (mpc_imagref(z1), p); |