* variable.c (rb_obj_remove_instance_variable): raise NameError if

  specified instance variable is not defined.

* variable.c (generic_ivar_remove): modified to check ivar
  existence.

* file.c (rb_file_s_extname): new method based on the proposal
  (and patch) from Mike Hall. [new]

* eval.c (error_handle): default to 1 unless status is set.

* eval.c (ruby_options): guard error_handle() with PROT_NONE.

* eval.c (ruby_stop): ditto.

* math.c (math_acosh): added. [new]

* math.c (math_asinh): ditto.

* math.c (math_atanh): ditto.

* struct.c (rb_struct_each_pair): method added. [new]

* class.c (rb_singleton_class): wrong condition; was creating
  unnecessary singleton class.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2348 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 28 insertions, 0 deletions

diff --git a/math.c b/math.c
index 4af3cef96e..c900a0b7aa 100644
--- a/math.c
+++ b/math.c
@@ -113,6 +113,30 @@ math_tanh(obj, x)
 }
 
 static VALUE
+math_acosh(obj, x)
+    VALUE obj, x;
+{
+    Need_Float(x);
+    return rb_float_new(acosh(RFLOAT(x)->value));
+}
+
+static VALUE
+math_asinh(obj, x)
+    VALUE obj, x;
+{
+    Need_Float(x);
+    return rb_float_new(asinh(RFLOAT(x)->value));
+}
+
+static VALUE
+math_atanh(obj, x)
+    VALUE obj, x;
+{
+    Need_Float(x);
+    return rb_float_new(atanh(RFLOAT(x)->value));
+}
+
+static VALUE
 math_exp(obj, x)
     VALUE obj, x;
 {
@@ -212,6 +236,10 @@ Init_Math()
     rb_define_module_function(rb_mMath, "sinh", math_sinh, 1);
     rb_define_module_function(rb_mMath, "tanh", math_tanh, 1);
 
+    rb_define_module_function(rb_mMath, "acosh", math_acosh, 1);
+    rb_define_module_function(rb_mMath, "asinh", math_asinh, 1);
+    rb_define_module_function(rb_mMath, "atanh", math_atanh, 1);
+
     rb_define_module_function(rb_mMath, "exp", math_exp, 1);
     rb_define_module_function(rb_mMath, "log", math_log, 1);
     rb_define_module_function(rb_mMath, "log10", math_log10, 1);