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rational.c: fix for mathn

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* rational.c (read_num, read_rat_nos): dispatch by the type of numerator, for
  mathn.  [ruby-core:78893] [Bug #13084]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57232 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-12-29 09:26:45 +00:00
parent 699383492e
commit ff93ad62bd
2 changed files with 31 additions and 5 deletions
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21
rational.c
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@ -2358,12 +2358,23 @@ read_num(const char **s, int numsign, int strict,
exp = rb_int_uminus(exp);
}
if (numsign == '-')
if (numsign == '-') {
if (RB_TYPE_P(*num, T_RATIONAL)) {
*num = rb_rational_uminus(*num);
}
else {
*num = rb_int_uminus(*num);
}
}
if (!NIL_P(exp)) {
VALUE l = f_expt10(exp);
if (RB_TYPE_P(*num, T_RATIONAL)) {
*num = nurat_mul(*num, l);
}
else {
*num = rb_int_mul(*num, l);
}
}
return 1;
}
@ -2388,9 +2399,15 @@ read_rat_nos(const char **s, int sign, int strict,
(*s)++;
if (!read_den(s, strict, &den))
return 0;
if (!(FIXNUM_P(den) && FIX2LONG(den) == 1))
if (!(FIXNUM_P(den) && FIX2LONG(den) == 1)) {
if (RB_TYPE_P(*num, T_RATIONAL)) {
*num = nurat_div(*num, den);
}
else {
*num = rb_int_div(*num, den);
}
}
}
return 1;
}

9
test/test_mathn.rb
View file

@ -180,4 +180,13 @@ class TestMathn < Test::Unit::TestCase
assert_equal((-13/5), (-13/5).round(2, half: :down))
EOS
end
def test_rational
assert_separately(%w[-rmathn], "#{<<-"begin;"}\n#{<<-"end;"}", ignore_stderr: true)
begin;
assert_equal(-5, "-5".to_r)
assert_equal(1, "5/5".to_r)
assert_equal(5, "5e0".to_r)
end;
end
end