Re: [boost] Macros at namespace scope: trailing semicolon?

Chris Uzdavinis wrote:

Chris Uzdavinis <chris@uzdavinis.com> writes:

...

Please consider this simple example: ... #define LOG(X) log((X), __FILE, __LINE__)

Oops. The typo on __FILE was an accident, and I hope it won't be a distraction from the example I was trying to make.

This is not a namespace-level macro. It expands to an expression. An expression macro must not contain a trailing semicolon because it can be used in contexts where a semicolon is illegal: static int dummy = LOG(something), 1;