--- trunk/src/acos.c 2009/12/08 16:49:43 733 | |
+++ trunk/src/acos.c 2009/12/09 20:51:38 734 | |
@@ -188,10 +188,7 @@ | |
else | |
rnd_im = rnd_im == GMP_RNDU ? GMP_RNDD | |
: rnd_im == GMP_RNDD ? GMP_RNDU | |
-#if MPFR_VERSION_MAJOR >= 3 | |
- : rnd_im == GMP_RNDA ? GMP_RNDZ | |
-#endif | |
- : rnd_im; | |
+ : rnd_im; /* both RNDZ and RNDA map to themselves for -asin(z) */ | |
rnd1 = RNDC(GMP_RNDN, rnd_im); | |
mpfr_init2 (pi_over_2, p); | |
for (;;) |