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

Luminous jewels, Problem : Luminous Jewels - Polishing Necklace Byteland c...

Problem : Luminous Jewels - Polishing Necklace Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of v

Write a program to illustrate array with strings, Write a Program to illust...

Write a Program to illustrate Array with Strings? main() { static char name[]="devdas"; int i; i=0; while(name[i]!='\0') { printf("%c",name[i]); i=i+1; } } In the

Write a program of constructors and destructors, Write a program of constru...

Write a program of constructors and destructors Make a class drugs having encapsulated data for medicine name, whether solid or liquid, price and purpose of use. From this clas

Explain the changing field width, Changing Field width The printf() and...

Changing Field width The printf() and scanf() functions from the standard library, use width specifier for controlling the width of its output . Similarly, the ostream class al

Program to creates a linked list of characters , Note: Please refer to the...

Note: Please refer to the Subject Outline for details regarding the assessment of the advanced assignment. The Problem You are to investigate the use of data structures an

Algorithm , write an algorithm to swap values without using third variable

write an algorithm to swap values without using third variable

Decodethecode, 6999066263304447777077766622337778 -----> message sent by th...

6999066263304447777077766622337778 -----> message sent by the first smuggler. my name is robert---------> message decoded by the second smuggler. Where ‘0’ denotes the "space". Ex

Arguments passing mechanism, Arguments Passing Mechanism C++ supports th...

Arguments Passing Mechanism C++ supports the following argument passing mechanisms: i).  Pass by value: A copy of the arguments value is made and passed to the called functio

Can any constructor throw an exception?, Can any constructor throw an excep...

Can any constructor throw an exception? How to handle error while the constructor fails?

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