Question: I inserted a new row in a table with Identity column, and saved it by calling update function. Then I immediatly tried to modify this record and update again.
Question: We have installed Powerbuilder 6.0.0. and have migrated applications. The application is working OK, but I am having a problem with the debugger. When I put a “break point”
If you need an object serving only as a function argument, you can use an explicit constructor call to instantiate a nameless object rather than a named one: void putPixel(const
Ownership in its OO sense relates to the responsibility for the creation and the destruction of an object. An object (in its broader sense) is an owner of some other
Typedefs can be used to enhance portability by hiding the underlying type of an more abstract entity. For instance, when maximal precision of a floating point is required, one type
C++ still supports C-style type casting in the form of ‘(T) e’ as in: int i = (int) 7.333; Nonetheless, this casting notation is not recommended. What is amiss with
It’s handy to catch potential exceptions in a bottom-down hierarchy: specific exceptions are handled first, then groups of exceptions and finally, a catch-all handler: #include //std::except is the base class
Often, when adding Crystal reports to your system, you’ll find that userswant the same basic report grouped different ways, like sales reports bycustomer state or salesman or region, and so