From 3c143ad882aa3929cebc5e6d7d67a08769f8e3b2 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <hhinnant@apple.com>
Date: Wed, 13 Oct 2010 14:37:09 +0000
Subject: [PATCH] Patch by Marshall Clow to make the assignment operators of
piecewise_constant_distribution and piecewise_linear_distribution exception
safe.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@116404 91177308-0d34-0410-b5e6-96231b3b80d8
---
include/random | 39 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 38 insertions(+), 1 deletion(-)
diff --git a/include/random b/include/random
index 5a74f639..6bbde221 100644
--- a/include/random
+++ b/include/random
@@ -5938,6 +5938,7 @@ public:
template<class _UnaryOperation>
param_type(size_t __nw, result_type __xmin, result_type __xmax,
_UnaryOperation __fw);
+ param_type & operator=(const param_type& __rhs);
_LIBCPP_INLINE_VISIBILITY
vector<result_type> intervals() const {return __b_;}
@@ -6047,6 +6048,23 @@ public:
piecewise_constant_distribution<_RT>& __x);
};
+template<class _RealType>
+typename piecewise_constant_distribution<_RealType>::param_type &
+piecewise_constant_distribution<_RealType>::param_type::operator=
+ (const param_type& __rhs)
+{
+// These can throw
+ __b_.reserve (__rhs.__b_.size ());
+ __densities_.reserve(__rhs.__densities_.size());
+ __areas_.reserve (__rhs.__areas_.size());
+
+// These can not throw
+ __b_ = __rhs.__b_;
+ __densities_ = __rhs.__densities_;
+ __areas_ = __rhs.__areas_;
+ return *this;
+}
+
template<class _RealType>
void
piecewise_constant_distribution<_RealType>::param_type::__init()
@@ -6239,7 +6257,8 @@ public:
template<class _UnaryOperation>
param_type(size_t __nw, result_type __xmin, result_type __xmax,
_UnaryOperation __fw);
-
+ param_type & operator=(const param_type& __rhs);
+
_LIBCPP_INLINE_VISIBILITY
vector<result_type> intervals() const {return __b_;}
_LIBCPP_INLINE_VISIBILITY
@@ -6348,6 +6367,24 @@ public:
piecewise_linear_distribution<_RT>& __x);
};
+template<class _RealType>
+typename piecewise_linear_distribution<_RealType>::param_type &
+piecewise_linear_distribution<_RealType>::param_type::operator=
+ (const param_type& __rhs)
+{
+// These can throw
+ __b_.reserve (__rhs.__b_.size ());
+ __densities_.reserve(__rhs.__densities_.size());
+ __areas_.reserve (__rhs.__areas_.size());
+
+// These can not throw
+ __b_ = __rhs.__b_;
+ __densities_ = __rhs.__densities_;
+ __areas_ = __rhs.__areas_;
+ return *this;
+}
+
+
template<class _RealType>
void
piecewise_linear_distribution<_RealType>::param_type::__init()