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8e5c3b23f2
and delimiters. * dir.c (remove_backslases): remove backslashes from path before calling stat(2). * dir.c (dir_s_glob): call rb_yield directly (via push_pattern) if block is given to the method. * dir.c (push_pattern): do not call rb_ary_push; yield directly. * eval.c (blk_copy_prev): reduced ALLOC_N too much. * eval.c (frame_dup): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1183 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
145 lines
2.8 KiB
C
145 lines
2.8 KiB
C
/**********************************************************************
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math.c -
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$Author$
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$Date$
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created at: Tue Jan 25 14:12:56 JST 1994
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Copyright (C) 1993-2001 Yukihiro Matsumoto
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**********************************************************************/
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#include "ruby.h"
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#include <math.h>
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VALUE rb_mMath;
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#define Need_Float(x) (x) = rb_Float(x)
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#define Need_Float2(x,y) {\
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Need_Float(x);\
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Need_Float(y);\
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}
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static VALUE
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math_atan2(obj, y, x)
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VALUE obj, x, y;
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{
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Need_Float2(y, x);
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return rb_float_new(atan2(RFLOAT(y)->value, RFLOAT(x)->value));
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}
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static VALUE
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math_cos(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(cos(RFLOAT(x)->value));
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}
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static VALUE
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math_sin(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(sin(RFLOAT(x)->value));
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}
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static VALUE
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math_tan(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(tan(RFLOAT(x)->value));
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}
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static VALUE
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math_exp(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(exp(RFLOAT(x)->value));
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}
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static VALUE
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math_log(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(log(RFLOAT(x)->value));
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}
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static VALUE
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math_log10(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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return rb_float_new(log10(RFLOAT(x)->value));
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}
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static VALUE
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math_sqrt(obj, x)
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VALUE obj, x;
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{
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Need_Float(x);
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if (RFLOAT(x)->value < 0.0) rb_raise(rb_eArgError, "square root for negative number");
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return rb_float_new(sqrt(RFLOAT(x)->value));
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}
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static VALUE
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math_frexp(obj, x)
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VALUE obj, x;
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{
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double d;
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int exp;
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Need_Float(x);
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d = frexp(RFLOAT(x)->value, &exp);
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return rb_assoc_new(rb_float_new(d), INT2NUM(exp));
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}
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static VALUE
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math_ldexp(obj, x, n)
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VALUE obj, x, n;
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{
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double d;
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Need_Float(x);
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return rb_float_new(d = ldexp(RFLOAT(x)->value, NUM2INT(n)));
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}
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void
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Init_Math()
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{
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rb_mMath = rb_define_module("Math");
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#ifdef M_PI
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rb_define_const(rb_mMath, "PI", rb_float_new(M_PI));
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#else
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rb_define_const(rb_mMath, "PI", rb_float_new(atan(1.0)*4.0));
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#endif
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#ifdef M_E
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rb_define_const(rb_mMath, "E", rb_float_new(M_E));
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#else
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rb_define_const(rb_mMath, "E", rb_float_new(exp(1.0)));
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#endif
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rb_define_module_function(rb_mMath, "atan2", math_atan2, 2);
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rb_define_module_function(rb_mMath, "cos", math_cos, 1);
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rb_define_module_function(rb_mMath, "sin", math_sin, 1);
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rb_define_module_function(rb_mMath, "tan", math_tan, 1);
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rb_define_module_function(rb_mMath, "exp", math_exp, 1);
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rb_define_module_function(rb_mMath, "log", math_log, 1);
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rb_define_module_function(rb_mMath, "log10", math_log10, 1);
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rb_define_module_function(rb_mMath, "sqrt", math_sqrt, 1);
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rb_define_module_function(rb_mMath, "frexp", math_frexp, 1);
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rb_define_module_function(rb_mMath, "ldexp", math_ldexp, 2);
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}
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