Advanced error checking and structures, C/C++ Programming

Assignment Help:

   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.


Related Discussions:- Advanced error checking and structures

Palindrome, A palindrome is a string that reads the same from both the ends...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Decode the code, c++ coding decode the letters from numbers

c++ coding decode the letters from numbers

Float number, We can combine more than one variable on the same line i.e. ...

We can combine more than one variable on the same line i.e.   float number1,number2,number3; etc Sometimes we want to mix the variable types used on the same line, this could

What is the main advantage to using a data file, Problem: (a) What is ...

Problem: (a) What is the main advantage to using a data file? (b) What is meant by opening a data file? How is this accomplished? Illustrate your answer clearly with a sui

Decode the code, By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the ...

By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area

Write a program that finds the minimum total number of shelv, Write a progr...

Write a program that finds the minimum total number of shelves, including the initial one required for this loading process.

Assyrian keyboard for android, Project Description: I want an app that t...

Project Description: I want an app that the user can download it from the play store and use it as a keyboard for texts and writing. Just like the Samsung keyboard and the arabi

Recursion, write a cprogram to calculate fraction through recursion

write a cprogram to calculate fraction through recursion

Model view controler, store the name of the political parties and the corre...

store the name of the political parties and the corresponding votes in two lists of equal length. access the lists is provided by two methods, each of which creates an interator th

Explain static variables, Static Variables Static variables have the si...

Static Variables Static variables have the similar scope s automatic variables, but, unlike automatic variables, static variables retain their values over number of function ca

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd