Question: How can I run an Informix SQL Script from the Linux Operating System command line directly? Answer: Use this format: dbaccess The is the name of the database and
Question: How do I make a beep in C++? I’d like to make my program alert the user in case of errors. Answer: Use the ‘a’ escape sequence to emit
Question: I was trying to test a base class and I came across an unusual question: in the below code, why doesn’t the compiler complain about the return code type
Question: Why doesn’t the datatype called sysname show up in all the tables’ dropdown lists of datatypes? Answer: The sysname datatype is a system datatype used to store database object
The C++ standard doesn’t specify the maximal number of member functions that a class can have. However, it recommends that it be 4096. Normally, classes don’t have more than 15-25
I received an interesting question from a reader. He used STL’s vector in a class that was heavily used in his project. The two compilers he used produced an extremely
I often receive readers’ queries regarding non-standard header files that they don’t have in their development suite, e.g.,,, that they wish to install. This header chase is futile
Do the following declarations differ in any way from one another? const long int N=0;long const int N=0; No, they don’t. C and C++ do not enforce a specific order
You can apply operator dynamic_cast only to polymorphic objects (a polymorphic object is one that has at least one virtual member function). This is a requirement of the C++ standard.