org.bytedeco.javacpp.annotation

Annotation Type ByRef

@Documented
 @Retention(value=RUNTIME)
 @Target(value={METHOD,PARAMETER})
public @interface ByRef

Indicates that an argument gets passed or returned by reference. When used alongside FunctionPointer, the Generator passes the underlying C++ function object (aka functor) instead of a function pointer.

See Also:

Generator

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
java.lang.String	nullValue A C++ expression to use when null is passed.

Element Detail

nullValue

public abstract java.lang.String nullValue

A C++ expression to use when null is passed. By default NullPointerException is thrown.

Default:

""