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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-01-29 01:41:54 (GMT)
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-01-29 01:41:54 (GMT)
commitd77ae2c2f4c6c2a4225bb1346067da478393f182 (patch)
treed63a30589d940a81865740432a9834b6398af797 /math.c
parent6ce27adabe13baefb974fd7ea4d1ff0becd60134 (diff)
math.c: Get_Double
* math.c (Get_Double): direct casting from Fixnum to double. [Feature #10785] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49433 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'math.c')
-rw-r--r--math.c87
1 files changed, 28 insertions, 59 deletions
diff --git a/math.c b/math.c
index 7c18f07..c7dde81 100644
--- a/math.c
+++ b/math.c
@@ -24,11 +24,7 @@
VALUE rb_mMath;
VALUE rb_eMathDomainError;
-#define Need_Float(x) do {if (!RB_TYPE_P(x, T_FLOAT)) {(x) = rb_to_float(x);}} while(0)
-#define Need_Float2(x,y) do {\
- Need_Float(x);\
- Need_Float(y);\
-} while (0)
+#define Get_Double(x) FIXNUM_P(x) ? (double)FIX2LONG(x) : NUM2DBL(x)
#define domain_error(msg) \
rb_raise(rb_eMathDomainError, "Numerical argument is out of domain - " #msg)
@@ -70,9 +66,8 @@ math_atan2(VALUE obj, VALUE y, VALUE x)
# define M_PI 3.14159265358979323846
#endif
double dx, dy;
- Need_Float2(y, x);
- dx = RFLOAT_VALUE(x);
- dy = RFLOAT_VALUE(y);
+ dx = Get_Double(x);
+ dy = Get_Double(y);
if (dx == 0.0 && dy == 0.0) {
if (!signbit(dx))
return DBL2NUM(dy);
@@ -115,8 +110,7 @@ math_atan2(VALUE obj, VALUE y, VALUE x)
static VALUE
math_cos(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(cos(RFLOAT_VALUE(x)));
+ return DBL2NUM(cos(Get_Double(x)));
}
/*
@@ -137,8 +131,7 @@ math_cos(VALUE obj, VALUE x)
static VALUE
math_sin(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(sin(RFLOAT_VALUE(x)));
+ return DBL2NUM(sin(Get_Double(x)));
}
@@ -159,8 +152,7 @@ math_sin(VALUE obj, VALUE x)
static VALUE
math_tan(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(tan(RFLOAT_VALUE(x)));
+ return DBL2NUM(tan(Get_Double(x)));
}
/*
@@ -182,8 +174,7 @@ math_acos(VALUE obj, VALUE x)
{
double d0, d;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < -1.0 || 1.0 < d0) domain_error("acos");
d = acos(d0);
@@ -208,8 +199,7 @@ math_asin(VALUE obj, VALUE x)
{
double d0, d;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < -1.0 || 1.0 < d0) domain_error("asin");
d = asin(d0);
@@ -232,8 +222,7 @@ math_asin(VALUE obj, VALUE x)
static VALUE
math_atan(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(atan(RFLOAT_VALUE(x)));
+ return DBL2NUM(atan(Get_Double(x)));
}
#ifndef HAVE_COSH
@@ -261,8 +250,7 @@ cosh(double x)
static VALUE
math_cosh(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(cosh(RFLOAT_VALUE(x)));
+ return DBL2NUM(cosh(Get_Double(x)));
}
#ifndef HAVE_SINH
@@ -290,8 +278,7 @@ sinh(double x)
static VALUE
math_sinh(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(sinh(RFLOAT_VALUE(x)));
+ return DBL2NUM(sinh(Get_Double(x)));
}
#ifndef HAVE_TANH
@@ -319,8 +306,7 @@ tanh(double x)
static VALUE
math_tanh(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(tanh(RFLOAT_VALUE(x)));
+ return DBL2NUM(tanh(Get_Double(x)));
}
/*
@@ -342,8 +328,7 @@ math_acosh(VALUE obj, VALUE x)
{
double d0, d;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < 1.0) domain_error("acosh");
d = acosh(d0);
@@ -367,8 +352,7 @@ math_acosh(VALUE obj, VALUE x)
static VALUE
math_asinh(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(asinh(RFLOAT_VALUE(x)));
+ return DBL2NUM(asinh(Get_Double(x)));
}
/*
@@ -390,8 +374,7 @@ math_atanh(VALUE obj, VALUE x)
{
double d0, d;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < -1.0 || +1.0 < d0) domain_error("atanh");
/* check for pole error */
@@ -420,8 +403,7 @@ math_atanh(VALUE obj, VALUE x)
static VALUE
math_exp(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(exp(RFLOAT_VALUE(x)));
+ return DBL2NUM(exp(Get_Double(x)));
}
#if defined __CYGWIN__
@@ -485,8 +467,7 @@ math_log1(VALUE x)
numbits = 0;
}
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < 0.0) domain_error("log");
/* check for pole error */
@@ -541,8 +522,7 @@ math_log2(VALUE obj, VALUE x)
numbits = 0;
}
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < 0.0) domain_error("log2");
/* check for pole error */
@@ -583,8 +563,7 @@ math_log10(VALUE obj, VALUE x)
numbits = 0;
}
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < 0.0) domain_error("log10");
/* check for pole error */
@@ -626,8 +605,7 @@ math_sqrt(VALUE obj, VALUE x)
{
double d0, d;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (d0 < 0.0) domain_error("sqrt");
if (d0 == 0.0) return DBL2NUM(0.0);
@@ -673,8 +651,7 @@ math_sqrt(VALUE obj, VALUE x)
static VALUE
math_cbrt(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(cbrt(RFLOAT_VALUE(x)));
+ return DBL2NUM(cbrt(Get_Double(x)));
}
/*
@@ -694,9 +671,7 @@ math_frexp(VALUE obj, VALUE x)
double d;
int exp;
- Need_Float(x);
-
- d = frexp(RFLOAT_VALUE(x), &exp);
+ d = frexp(Get_Double(x), &exp);
return rb_assoc_new(DBL2NUM(d), INT2NUM(exp));
}
@@ -713,8 +688,7 @@ math_frexp(VALUE obj, VALUE x)
static VALUE
math_ldexp(VALUE obj, VALUE x, VALUE n)
{
- Need_Float(x);
- return DBL2NUM(ldexp(RFLOAT_VALUE(x), NUM2INT(n)));
+ return DBL2NUM(ldexp(Get_Double(x), NUM2INT(n)));
}
/*
@@ -730,8 +704,7 @@ math_ldexp(VALUE obj, VALUE x, VALUE n)
static VALUE
math_hypot(VALUE obj, VALUE x, VALUE y)
{
- Need_Float2(x, y);
- return DBL2NUM(hypot(RFLOAT_VALUE(x), RFLOAT_VALUE(y)));
+ return DBL2NUM(hypot(Get_Double(x), Get_Double(y)));
}
/*
@@ -751,8 +724,7 @@ math_hypot(VALUE obj, VALUE x, VALUE y)
static VALUE
math_erf(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(erf(RFLOAT_VALUE(x)));
+ return DBL2NUM(erf(Get_Double(x)));
}
/*
@@ -772,8 +744,7 @@ math_erf(VALUE obj, VALUE x)
static VALUE
math_erfc(VALUE obj, VALUE x)
{
- Need_Float(x);
- return DBL2NUM(erfc(RFLOAT_VALUE(x)));
+ return DBL2NUM(erfc(Get_Double(x)));
}
/*
@@ -849,8 +820,7 @@ math_gamma(VALUE obj, VALUE x)
};
double d0, d;
double intpart, fracpart;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (isinf(d0) && signbit(d0)) domain_error("gamma");
fracpart = modf(d0, &intpart);
@@ -885,8 +855,7 @@ math_lgamma(VALUE obj, VALUE x)
double d0, d;
int sign=1;
VALUE v;
- Need_Float(x);
- d0 = RFLOAT_VALUE(x);
+ d0 = Get_Double(x);
/* check for domain error */
if (isinf(d0)) {
if (signbit(d0)) domain_error("lgamma");