Re: strstream

["OHIRA, Shinya" <shinya at digion dot com>]

Thank you so much! It worked fine.

--Shinya

"Martin v. Loewis" <martin@loewis.home.cs.tu-berlin.de> writes:
> > Hi, enclosed file is a strstream test program. The generated 
> string 
> > seems broken. Bug? Please let me know what should I do.
> 
> Thanks for your bug report. This is not a bug in gcc, but in your
> code. The str() method of a strstream does not necessarily return 
> a
> null-terminated string. One way of correcting your program is to 
> write
> 
> #include <strstream>
> #include <string>
> 
> std::string str() {
>   std::ostrstream oss;
>   oss << "a :" << 1 << std::endl;
>   oss << "ab :" << 2 << std::endl;
>   oss << "abc :" << 3 << std::endl;
>   oss << "abcd :" << 4 << std::endl;
>   oss << "a :" << 5 << std::endl;
>   oss << "ab :" << 6 << std::endl;
>   oss << "abc :" << 7 << std::endl;
>   oss << "abcd :" << 8 << std::endl;
>   oss << "a :" << 9 << std::endl;
>   oss << "ab :" << 10 << std::endl;
>   oss << "abc :" << 11 << std::endl;
>   oss << "abcd :" << 12 << std::endl;
>   return std::string(oss.str(),oss.pcount());
> }
> 
> int main() {
>   std::cout << str() << std::endl;
>   std::cout << str() << std::endl;
>   std::cout << str() << std::endl;
>   return 0;
> }
> 
> Another approach is to write the std::ends manipulator onto the
> strstream, which makes the resulting string null-terminated.
> 
> Hope this helps,
> Martin
>