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Patch by Marshall Clow to make the assignment operators of piecewise_constant_distribution and piecewise_linear_distribution exception safe.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@116404 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant 2010-10-13 14:37:09 +00:00
parent 08f2969220
commit 3c143ad882
1 changed files with 38 additions and 1 deletions
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37
include/random
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@ -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()
@ -6239,6 +6257,7 @@ 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_;}
@ -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()