diff options
| author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-01-07 14:42:52 +0000 |
|---|---|---|
| committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-01-07 14:42:52 +0000 |
| commit | 1be6a498ba8d1c113d4e0e7547d01c86c188e5c4 (patch) | |
| tree | 34d65cf35842ad8a4c851fee2e52a8f109625314 /ext/bigdecimal | |
| parent | 19768b6cacb1319f34944a0dc5e0bbe099d2d18e (diff) | |
* ext/bigdecimal/bigdecimal.c (rmpd_power_by_big_decimal):
add RB_GC_GUARD to prevent the immediate object is GCed too early.
This patch was made by Yusuke Endoh. [Bug #7044] [ruby-core:47632]
* test/bigdecimal/test_bigdecimal.rb: add a reproduction test for
the issue [Bug #7044]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/bigdecimal')
| -rw-r--r-- | ext/bigdecimal/bigdecimal.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c index b161bc95ca..7cd0044532 100644 --- a/ext/bigdecimal/bigdecimal.c +++ b/ext/bigdecimal/bigdecimal.c @@ -2046,6 +2046,7 @@ static VALUE rmpd_power_by_big_decimal(Real const* x, Real const* exp, ssize_t const n) { VALUE log_x, multiplied, y; + volatile VALUE obj = exp->obj; if (VpIsZero(exp)) { return ToValue(VpCreateRbObject(n, "1")); @@ -2054,6 +2055,7 @@ rmpd_power_by_big_decimal(Real const* x, Real const* exp, ssize_t const n) log_x = BigMath_log(x->obj, SSIZET2NUM(n+1)); multiplied = BigDecimal_mult2(exp->obj, log_x, SSIZET2NUM(n+1)); y = BigMath_exp(multiplied, SSIZET2NUM(n)); + RB_GC_GUARD(obj); return y; } |