[Qt-interest] How to change std::vector<char> to QString?

[donglongchao]

在2009-12-14，"Tim Dewhirst" <tim at bugless.co.uk> 写道：
>Hi Longchao,
>
>donglongchao wrote:
>> Help!I am using a shared library in which there is a function who return 
>> a std::vector<char>.I want to assign it to a QString object to show it 
>> on my GUI.But I do not know how to do it.Is there any constructor/member 
>> function in QString to do this?Or is there any constructor/member 
>> function in std::vector<char> to change itself into a char* or sth like 
>> that so that I can use it as a parameter in QString's constructor/member 
>> function to do this?I search the document but find nothing.If there is 
>> no,do I have to pull each element of the std::vector<char> out and then 
>> push them into my QString to do this?While I do not like this method 
>> very much.:-(.So,please point me the right direction and a better 
>> approach.Thanks a lot in advance.
>
>You can do this:
>
>#include <vector>
>#include <cstring>
>
>#include <QString>
>#include <QDebug>
>
>int main( int argc, char* argv[] )
>{
>     std::vector< char > input( 10, 0 );
>     strcpy( &input[0], "hello" );
>
>     // use the appropriate from* method according to data in vector
>     QString output = QString::fromLatin1( &input[0] );
>     qDebug() << output;
>
>     return 0;
>}
>

Eirik Ulvik suggests another way:QString(QVector<char>::fromStdVector(std::vector<char> std_vec).data()).It looks more QT,isn't it? :-).Anyway ,thank you very much,Tim and Eirik.

>Thanks,
>
>Tim
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