With gcc you only get a warning:

Visual Studio emit something similar if I remember correctly.

VS throws an error.

Obviously depends on the compiler… With gcc, don’t forget to set -Wall
VS2008 does it out of the box

Yup, I’m using the MinGW tool chain under Windows 7.

Live and learn.

You can turn warnings into errors in gcc with -Werror switch. You can enable this by adding this to your .pro file:

florent.revelut wrote:

VS2008 does it out of the box

Franzk wrote:

florent.revelut wrote:

VS2008 does it out of the box

Depends on your warning level just like with gcc, if I recall correctly.

Hi,

In MSVS it’s an error not a warning. I always use default levels: Warning level 3, no warning —> error translation. The MS compilers throw errors for such constructs.