Tip Bank

Question: I want to purchase some software that will translate Informix 4GL to any of the following: Java, C, C++, or Perl. We have two applications that we need to

Question: What is the significance of const return type from a function?Similar to: const int func1(); Answer: The const in this position guarantees that the caller of the function doesn’t

Question: Can 16-bit software run in Windows 2000 platform? Answer: The answer is yes and no. Many 16-bit software programs run just fine in W2K, as they did in NT

C++ inherited from C the global variable errno which indicates the success status of a previous operations. An errno value of 0 indicates that the previous operation was successful whereas

To avoid undesirable changes to an argument passed by reference, you pass it as a const parameter. For example: void f(const string & s); // f can’t change s However,

In a previous tip, I discussed techniques for treating a vector object as an array. The two main forms of obtaining the internal array’s address are: &*v.begin(); // obtain address

The value of an uninitialized automatic enum variable is indeterminate. Uninitialized global and static enum variables have a zero value by default. In this regard, enum variables are similar to

The operator % returns the remainder of dividing its two operands. For example: b=10%3; // b equals 1 Don’t confuse the modulus operator with the division operator: c=10/3; // division,

Question: How can I lock a row in a table from a stored procedure? Answer: You shouldn’t have to worry about locking. It’s done automatically by the engine when you