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Bug #2666059: cap buffer size to 126.

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@1001 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
jfbastien 2009-03-05 22:04:56 +00:00
parent a34780ce1e
commit 12a3a50e8e
1 changed files with 56 additions and 42 deletions
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14
include/loki/flex/smallstringopt.h
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@ -74,6 +74,18 @@ class StoragePolicy
#include <stdexcept> #include <stdexcept>
#include "flex_string_details.h" #include "flex_string_details.h"
namespace SmallStringOptImpl
{
// The threshold for SmallStringOpt cannot be greater than 126. See Loki bug #2666059 for more details:
// https://sourceforge.net/tracker2/?func=detail&aid=2666059&group_id=29557&atid=396644
template<int Expression> struct BufferSizeCannotBeGreaterThan126;
template<> struct BufferSizeCannotBeGreaterThan126<true> { };
#define LOKI_FLEX_STRING_BUFFERSIZECANNOTBEGREATERTHAN126(expression) \
{ SmallStringOptImpl::BufferSizeCannotBeGreaterThan126<((expression) != 0)> \
bufferSizeCannotBeGreaterThan126; (void)bufferSizeCannotBeGreaterThan126; }
}
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
// class template SmallStringOpt // class template SmallStringOpt
// Builds the small string optimization over any other storage // Builds the small string optimization over any other storage
@ -133,6 +145,8 @@ private:
public: public:
SmallStringOpt(const SmallStringOpt& s) SmallStringOpt(const SmallStringOpt& s)
{ {
LOKI_FLEX_STRING_BUFFERSIZECANNOTBEGREATERTHAN126(maxSmallString <= 126)
if (s.Small()) if (s.Small())
{ {
flex_string_details::pod_copy( flex_string_details::pod_copy(