Ignoring return values in C

Question

Lately, I started using lint for static code analysis. One of the warning I get sometimes is regarding this issue. Let\'s say for instance that I\'ve got the following funct

Answer 1

Other solution would be to actually use a value. Then you could remove the unused variable warning with a macro.

#define _unused(x) ((void)(x))

Then in your example, you'd have:

val = foo();
_unused(val);