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self assignment problem in is_any_ofF fixed

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[SVN r48281]
This commit is contained in:
Pavol Droba
2008-08-21 14:46:15 +00:00
parent 760af1798b
commit 6d5e7b5a04
2 changed files with 42 additions and 17 deletions
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58
include/boost/algorithm/string/detail/classification.hpp
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@ -141,9 +141,12 @@ namespace boost {
// Assignment
is_any_ofF& operator=(const is_any_ofF& Other)
{
// Handle self assignment
if(this==&Other) return *this;
// Prepare storage
const set_value_type* SrcStorage=0;
set_value_type* DestStorage=0;
const set_value_type* SrcStorage;
set_value_type* DestStorage;
if(use_fixed_storage(Other.m_Size))
{
@ -162,23 +165,44 @@ namespace boost {
}
else
{
// Use dynamic storage
// Create new buffer
set_value_type* pTemp=new set_value_type[Other.m_Size];
DestStorage=pTemp;
// Other uses dynamic storage
SrcStorage=Other.m_Storage.m_dynSet;
// Delete old storage if necessary
if(!use_fixed_storage(m_Size) && m_Storage.m_dynSet!=0)
{
delete [] m_Storage.m_dynSet;
}
// Store the new storage
m_Storage.m_dynSet=pTemp;
// Set new size
m_Size=Other.m_Size;
// Check what kind of storage are we using right now
if(use_fixed_storage(m_Size))
{
// Using fixed storage, allocate new
set_value_type* pTemp=new set_value_type[Other.m_Size];
DestStorage=pTemp;
m_Storage.m_dynSet=pTemp;
m_Size=Other.m_Size;
}
else
{
// Using dynamic storage, check if can reuse
if(m_Storage.m_dynSet!=0 && m_Size>=Other.m_Size && m_Size<Other.m_Size*2)
{
// Reuse the current storage
DestStorage=m_Storage.m_dynSet;
m_Size=Other.m_Size;
}
else
{
// Allocate the new one
set_value_type* pTemp=new set_value_type[Other.m_Size];
DestStorage=pTemp;
// Delete old storage if necessary
if(m_Storage.m_dynSet!=0)
{
delete [] m_Storage.m_dynSet;
}
// Store the new storage
m_Storage.m_dynSet=pTemp;
// Set new size
m_Size=Other.m_Size;
}
}
}
// Copy the data