Define IOX_DISCARD_RESULT

• Defined in File attributes.hpp

Define Documentation

IOX_DISCARD_RESULT(expr)

if a function has a return value which you do not want to use then you can wrap the function with that macro. Purpose is to suppress the unused compiler warning by adding an attribute to the return value

Parameters:

• expr – [in] name of the function where the return value is not used.

  uint32_t foo();
  IOX_DISCARD_RESULT(foo()); // suppress compiler warning for unused return value