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It is standard on functions to provide some indication that the function has succeeded in its operation. Consider the Scanf function:
scanf("%d",&number1); If the function does indeed get a integer from the keyboard then everything is okay, but what happens if the user types in a char or float etc. The program might crash, it is common to write functions which never crash but return an error code. On the function scanf, the full prototype is
int scanf("format",&variables); The int is used to provide details of correct operation i.e. number of values input or '-1' error . We can use this in programs to trap errors and repeat functions etc. The appended ANSI library shows full prototypes and meaning of return values from functions.
What is inheritance? Class, the vehicle, which is used to execute object-oriented concepts in C++, has given a new dimension to this idea of reusability. Many vendors now offer
what are 3 conditions under which the sequential search of a list is preferable to binary search?
Hiding overloaded functions We cannot overload a base class function by redefining it in a derived class with a dissimilar argument list. Consider examples to see if similar fu
All languages are divided into six sections: - variables, I/O maths, conditional expressions, arrays, functions, subroutines and file handlers. Learning a software language is simi
Automatic Variables Automatic variables are variable which are explained within the functions. They lose their value when the function terminates. It can be accessed only in th
What is Ms dos?
flow chart for calculating the volume of sphere
write c++ programm calculate electricity bill with person name,use ,id
A: Along with the C++ language, you can overload operators and functions. Overloading is the practice of supplying more than one definition for a provided function name in the same
TO CONVERT A NUMBER OR A DIGIT INTO ALPHABET
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