To print out the declaration of an identifier, type:
(dbx) whatis identifier |
Qualify the identifier name with file and function information as needed.
For C++ programs, whatis identifier lists function template instantiations. Template definitions are displayed with whatis -t identifier. See Looking Up Definitions of Types and Classes.
For Java programs, whatis identifier, lists the declaration of a class, a method in the current class, a local variable in the current frame, or a field in the current class.
To print out the member function, type
(dbx) whatis block::draw void block::draw(unsigned long pw); (dbx) whatis table::draw void table::draw(unsigned long pw); (dbx) whatis block::pos class point *block::pos(); (dbx) whatis table::pos class point *block::pos(); : |
To print out the data member, type:
(dbx) whatis block::movable int movable; |
On a variable, the whatis command tells you the variable”s type
(dbx) whatis the_table class table *the_table; . |
On a field, the whatis command gives the field”s type.
(dbx) whatis the_table->draw void table::draw(unsigned long pw); |
When you are stopped in a member function, you can look up the this pointer.
(dbx) stop in brick::draw (dbx) cont (dbx) where 1 brick::draw(this = 0x48870, pw = 374752), line 124 in "block_draw.cc" (dbx) whatis this class brick *this; |