Oleg Bolshakov
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Re: First element data corruption in a vector
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Oleg Bolshakov
06/24/2015 4:44 AM
post114013
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Re: First element data corruption in a vector
Hi Ong,
This is QNX 4 discussion board, but you asked about QNX 6.6. Please post your question in right forum. It’d be great to
add a full minimal example (including main() and Makefile) to illustrate the issue.
Respectfully,
Oleg
24 июня 2015 г., в 5:41:32, Ong Di Yong <community-noreply@qnx.com> написал:
> Hi all, I noticed that whenever I push_pack() a structure into a vector, there will be incidents when the content in
the first element always get corrupted. This does not happen consistently but rather randomly.
>
> my structure is defined as follows:
> struct myStruct
> {
> uint32_t content1;
> uint32_t content2;
> uint32_t content3;
> uint32_t content4;
> }
>
> Usage is as follows:
> class myClass
> {
> public:
> void Update();
> void Retrieve(std::vector<myStruct> &list);
> private:
> std::vector<myStruct> m_list;
> }
> void myClass::Update()
> {
> myStruct temp;
>
> // performing operations to fill up contents in myStruct
>
> m_list.push_back(temp);
> }
>
> void myClass::Retrieve( std::vector<myStruct> &list)
> {
> for(uint32_t i=0; i<m_list.size(); i++)
> std::cout << m_list[i].content1 << std::endl;
> list = m_list;
> }
>
> I noticed that when I called Retrieve(), the content1 is changed randomly although I have verified that the contents
inside are per what was pushed in in Update(). I am currently using QNX 6.6.0.
>
> May I know what is causing this problem? Thanks.
>
>
>
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>
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