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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-11-06 22:50:30 +00:00
parent 6678422fee
commit 7f00f853d4
4 changed files with 20 additions and 10 deletions
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15
numeric.c
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@ -1721,7 +1721,8 @@ num_truncate(VALUE num)
}
static double
ruby_float_step_size(double beg, double end, double unit, int excl) {
ruby_float_step_size(double beg, double end, double unit, int excl)
{
const double epsilon = DBL_EPSILON;
double n = (end - beg)/unit;
double err = (fabs(beg) + fabs(end) + fabs(end-beg)) / fabs(unit) * epsilon;
@ -1765,7 +1766,8 @@ ruby_float_step(VALUE from, VALUE to, VALUE step, int excl)
}
VALUE
num_interval_step_size(VALUE from, VALUE to, VALUE step, int excl) {
num_interval_step_size(VALUE from, VALUE to, VALUE step, int excl)
{
if (FIXNUM_P(from) && FIXNUM_P(to) && FIXNUM_P(step)) {
long delta, diff, result;
@ -1796,7 +1798,8 @@ num_interval_step_size(VALUE from, VALUE to, VALUE step, int excl) {
}
static VALUE
num_step_size(VALUE from, VALUE args) {
num_step_size(VALUE from, VALUE args)
{
VALUE to = RARRAY_PTR(args)[0];
VALUE step = (RARRAY_LEN(args) > 1) ? RARRAY_PTR(args)[1] : INT2FIX(1);
return num_interval_step_size(from, to, step, FALSE);
@ -3381,7 +3384,8 @@ fix_size(VALUE fix)
}
static VALUE
int_upto_size(VALUE from, VALUE args) {
int_upto_size(VALUE from, VALUE args)
{
return num_interval_step_size(from, RARRAY_PTR(args)[0], INT2FIX(1), FALSE);
}
@ -3427,7 +3431,8 @@ int_upto(VALUE from, VALUE to)
}
static VALUE
int_downto_size(VALUE from, VALUE args) {
int_downto_size(VALUE from, VALUE args)
{
return num_interval_step_size(from, RARRAY_PTR(args)[0], INT2FIX(-1), FALSE);
}