Question

I’m having bizarre behavior with stringstreams. It seems that if I create two stringstreams, one will write correctly and one will raise errors. (test is a char*)

ostringstream s;
ostringstream d;
s<<test<<endl;
d<<test<<endl;

This gives the message “error: invalid operands of types ‘int’ and ‘const char*’ to binary ‘operator<<‘” for the last line.

ostringstream s;
ostringstream d;
d<<test<<endl;
d<<test<<endl;

This gives the message “error: invalid operands of types ‘int’ and ‘const char*’ to binary ‘operator<<‘” for both lines writing to d.

The two streams should be identical, so I don’t know why d doesn’t work. Switching the order of the declarations of s and d doesn’t change anything. Anyone have an ideas why this might happen?

Thanks!

Answer 1

I have the same error when the variable d has already been declared so it has another type.