[seed] [mpfr] Added mpfr.agm

[Tim Horton <hortont src gnome org>]

commit f199c315b3f9742a028f0b0afc5c8ec1feb2e80e
Author: Matt ARSENAULT <arsenm2 rpi edu>
Date:   Sun Jul 5 16:21:47 2009 -0400

    [mpfr] Added mpfr.agm

 modules/mpfr/seed-mpfr-trig.c |   32 ++++++++++++++++++++++++++++++++
 modules/mpfr/seed-mpfr.c      |    1 +
 modules/mpfr/seed-mpfr.h      |    1 +
 3 files changed, 34 insertions(+), 0 deletions(-)
---
diff --git a/modules/mpfr/seed-mpfr-trig.c b/modules/mpfr/seed-mpfr-trig.c
index 765af38..51f207e 100644
--- a/modules/mpfr/seed-mpfr-trig.c
+++ b/modules/mpfr/seed-mpfr-trig.c
@@ -1149,3 +1149,35 @@ SeedValue seed_mpfr_fms (SeedContext ctx,
     return seed_value_from_int(ctx, ret, exception);
 }
 
+SeedValue seed_mpfr_agm (SeedContext ctx,
+                         SeedObject function,
+                         SeedObject this_object,
+                         gsize argument_count,
+                         const SeedValue args[],
+                         SeedException * exception)
+{
+    mpfr_rnd_t rnd;
+    mpfr_ptr rop, op1, op2;
+    gint ret;
+
+    CHECK_ARG_COUNT("mpfr.agm", 3);
+
+    rop = seed_object_get_private(this_object);
+    rnd = seed_value_to_mpfr_rnd_t(ctx, args[2], exception);
+
+    if ( seed_value_is_object_of_class(ctx, args[0], mpfr_class) &&
+         seed_value_is_object_of_class(ctx, args[1], mpfr_class))
+    {
+        op1 = seed_object_get_private(args[0]);
+        op2 = seed_object_get_private(args[1]);
+    }
+    else
+    {
+        TYPE_EXCEPTION("mpfr.agm", "mpfr_t");
+    }
+
+    ret = mpfr_agm(rop, op1, op2, rnd);
+
+    return seed_value_from_int(ctx, ret, exception);
+}
+
diff --git a/modules/mpfr/seed-mpfr.c b/modules/mpfr/seed-mpfr.c
index 28fad31..28d4830 100644
--- a/modules/mpfr/seed-mpfr.c
+++ b/modules/mpfr/seed-mpfr.c
@@ -642,6 +642,7 @@ seed_static_function mpfr_funcs[] =
     {"yn", seed_mpfr_yn, 0},
     {"fma", seed_mpfr_fma, 0},
     {"fms", seed_mpfr_fms, 0},
+    {"agm", seed_mpfr_agm, 0},
     {"set", seed_mpfr_set, 0},
     {"set_inf", seed_mpfr_set_inf, 0},
     {"set_nan", seed_mpfr_set_nan, 0},
diff --git a/modules/mpfr/seed-mpfr.h b/modules/mpfr/seed-mpfr.h
index 8cda045..48eda42 100644
--- a/modules/mpfr/seed-mpfr.h
+++ b/modules/mpfr/seed-mpfr.h
@@ -122,6 +122,7 @@ DEF_SEED_MPFR_FUNC(seed_mpfr_yn);
 
 DEF_SEED_MPFR_FUNC(seed_mpfr_fma);
 DEF_SEED_MPFR_FUNC(seed_mpfr_fms);
+DEF_SEED_MPFR_FUNC(seed_mpfr_agm);
 
 
 #endif      /* _SEED_MFPR_H_ */