Re: Have you guys met this error before?

[jbannon]

On Mar 9, 12:25 pm, "receipt" <rece...@163.com> wrote:
> help-gplusp...@gnu.org
>
>         I wrote a very simple function, as vector<double, 
> __single_client_alloc> local(V.begin(), V.end());But under Gcc(g++ in fact), 
> version 4.0.0, I got some error as "__single_client_alloca was not declared 
> in this scope". I am wondering if some of you have met this before, you can 
> help me out here, would you? Thank you!
>
> 1. The whole function is :
> 2 int main()
> 3 {
> 4
> 5       using namespace std;
> 6       vector<double> V(100,5.0);
> 7   vector<double, __single_client_alloc> local(V.begin(), V.end());
> 8   return 0;
> 9       }
>
> 2. The gcc's version on my PC is :
> $ gcc --version
> gcc (GCC) 4.0.0 20050519 (Red Hat 4.0.0-8)
> Copyright (C) 2005 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>
> 3. The whole error message is :
> main.c: In function int main():
> main.c:7: error: __single_client_alloca was not declared in this scope
> main.c:7: error: template argument 2 is invalid
> main.c:7: error: invalid type in declaration before ( token
> main.c:7: error: initializer expression list treated as compound expression
> main.c:7: error: cannot convert __gnu_cxx::__normal_iterator<double*, 
> std::vector<double, std::allocator<double> > > to int in initialization
> main.c:7: warning: unused variable local
> make: *** [main.o] Error 1
>
>         receipt
>         rece...@163.com
>           2007-03-09

If __single_client_alloca was is user-defined allocator then the
behaviour of this is undefined. Was it user-defined?