Is it possible to turn off support for “and” / “or” boolean operator usage in gcc?

Question

GCC seems to allow \"and\" / \"or\" to be used instead of \"&&\" / \"||\" in C++ code; however, as I expected, many compilers (notably MSVC 7) do not support this. T

Answer 1

They are part of the C++ standard, see for instance this StackOverflow answer (which quotes the relevant parts of the standard).

Another answer in the same question mentions how to do the opposite: make them work in MSVC.

To disable them in GCC, use -fno-operator-names. Note that, by doing so, you are in fact switching to a non-standard dialect of C++, and there is a risk that you end up writing code which might not compile correctly on standard-compliant compilers (for instance, if you declare a variable with a name that would normally be reserved).

Answer 2

Have you considered any code analysis tools? Something similar to FxCop? With FxCop you can write your own rules( check for && ) and you can set it to run during the pre-compile stage.

Answer 3

-pedantic-errors may help for this, among other gnu-isms.

Answer 4

The words are standard in C++ without the inclusion of any header.

The words are standard in C if you include the header <iso646.h>.

MSVC is doing you no service by not supporting the standards.

You could, however, use tools to enforce the non-use of the keywords. And it can be a coding guideline, and you can quickly train your team not to make silly portability mistakes. It isn't that hard to avoid the problem.