Why does this constructor-usage not compile ?

[Paul McKenzie]

The code that Yves posted does not compile using the Comeau compiler:

#include <string>

using namespace std;

class someclass
{
  private:
  string m_string;

  public:
  someclass(string& str){m_string = str;}
};

int main()
{
  someclass* cinst = new someclass(string("test"));

  delete cinst;
  return 0;
}

ComeauTest.c", line 17: error: no instance of constructor "someclass::someclass"
          matches the argument list
            The argument types that you used are: (std::string)
    someclass* cinst = new someclass(string("test"));
                                     ^

1 error detected in the compilation of "ComeauTest.c".

Regards,

Paul McKenzie