[seed] [mpfr] Added mpfr.abs and mpfr.neg

[Tim Horton <hortont src gnome org>]

commit 51eb7abf52b250f4524e63b2f99b318455d5dbc5
Author: Matt ARSENAULT <arsenm2 rpi edu>
Date:   Sun Jul 5 16:58:50 2009 -0400

    [mpfr] Added mpfr.abs and mpfr.neg

 modules/mpfr/seed-mpfr-arithmetic.c |   60 +++++++++++++++++++++++++++++++++++
 modules/mpfr/seed-mpfr.c            |    2 +
 modules/mpfr/seed-mpfr.h            |    3 ++
 3 files changed, 65 insertions(+), 0 deletions(-)
---
diff --git a/modules/mpfr/seed-mpfr-arithmetic.c b/modules/mpfr/seed-mpfr-arithmetic.c
index af8f2b6..76cd8f8 100644
--- a/modules/mpfr/seed-mpfr-arithmetic.c
+++ b/modules/mpfr/seed-mpfr-arithmetic.c
@@ -155,3 +155,63 @@ SeedValue seed_mpfr_cbrt (SeedContext ctx,
     return seed_value_from_int(ctx, ret, exception);
 }
 
+SeedValue seed_mpfr_neg (SeedContext ctx,
+                         SeedObject function,
+                         SeedObject this_object,
+                         gsize argument_count,
+                         const SeedValue args[],
+                         SeedException * exception)
+{
+    mpfr_rnd_t rnd;
+    mpfr_ptr rop, op;
+    gint ret;
+
+    CHECK_ARG_COUNT("mpfr.neg", 2);
+
+    rop = seed_object_get_private(this_object);
+    rnd = seed_value_to_mpfr_rnd_t(ctx, args[1], exception);
+
+    if ( seed_value_is_object_of_class(ctx, args[0], mpfr_class) )
+    {
+        op = seed_object_get_private(args[0]);
+    }
+    else
+    {
+        TYPE_EXCEPTION("mpfr.neg", "mpfr_t");
+    }
+
+    ret = mpfr_neg(rop, op, rnd);
+
+    return seed_value_from_int(ctx, ret, exception);
+}
+
+SeedValue seed_mpfr_abs (SeedContext ctx,
+                         SeedObject function,
+                         SeedObject this_object,
+                         gsize argument_count,
+                         const SeedValue args[],
+                         SeedException * exception)
+{
+    mpfr_rnd_t rnd;
+    mpfr_ptr rop, op;
+    gint ret;
+
+    CHECK_ARG_COUNT("mpfr.abs", 2);
+
+    rop = seed_object_get_private(this_object);
+    rnd = seed_value_to_mpfr_rnd_t(ctx, args[1], exception);
+
+    if ( seed_value_is_object_of_class(ctx, args[0], mpfr_class) )
+    {
+        op = seed_object_get_private(args[0]);
+    }
+    else
+    {
+        TYPE_EXCEPTION("mpfr.abs", "mpfr_t");
+    }
+
+    ret = mpfr_abs(rop, op, rnd);
+
+    return seed_value_from_int(ctx, ret, exception);
+}
+
diff --git a/modules/mpfr/seed-mpfr.c b/modules/mpfr/seed-mpfr.c
index daf4903..dec0af5 100644
--- a/modules/mpfr/seed-mpfr.c
+++ b/modules/mpfr/seed-mpfr.c
@@ -605,6 +605,8 @@ seed_static_function mpfr_funcs[] =
     {"sqrt", seed_mpfr_sqrt, 0},
     {"rec_sqrt", seed_mpfr_rec_sqrt, 0},
     {"cbrt", seed_mpfr_cbrt, 0},
+    {"neg", seed_mpfr_neg, 0},
+    {"abs", seed_mpfr_abs, 0},
     {"sin", seed_mpfr_sin, 0},
     {"cos", seed_mpfr_cos, 0},
     {"tan", seed_mpfr_tan, 0},
diff --git a/modules/mpfr/seed-mpfr.h b/modules/mpfr/seed-mpfr.h
index 4e3f75a..cac2d07 100644
--- a/modules/mpfr/seed-mpfr.h
+++ b/modules/mpfr/seed-mpfr.h
@@ -54,6 +54,9 @@ typedef enum _seed_mpfr_t
 
 inline seed_mpfr_t seed_mpfr_arg_type(SeedContext, SeedValue, SeedException);
 
+DEF_SEED_MPFR_FUNC(seed_mpfr_neg);
+DEF_SEED_MPFR_FUNC(seed_mpfr_abs);
+
 DEF_SEED_MPFR_FUNC(seed_mpfr_add);
 DEF_SEED_MPFR_FUNC(seed_mpfr_sin);
 DEF_SEED_MPFR_FUNC(seed_mpfr_cos);