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

3n+1, Consider the following algorithm to generate a sequence of numbers. S...

Consider the following algorithm to generate a sequence of numbers. Start with an integer n. If n is even, divide by 2. If n is odd, multiply by 3 and add 1. Repeat this process wi

C programming, Byteland county is very famous for luminous jewels. Luminous...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Random question, Ask question #write statement that assign random integer t...

Ask question #write statement that assign random integer to the varaible n in the (100

Explain enumerated constants, Enumerated Constants Enumerated constants...

Enumerated Constants Enumerated constants enable the creation of new types and then explain variables of these types so that their values are restricted to a set of possible va

Friend function, Ask question #Minimum 100 what is friend function is used ...

Ask question #Minimum 100 what is friend function is used in c++

Write a program to calculate the timetable, Write a program to calculate th...

Write a program to calculate the timetable for numbers 1 -> 10 and display them as follows. Your solution should use for do loops      #include stdio.h void main() {    char p

Should my class declare a friend function or member function, A: Use a memb...

A: Use a member while you can and a friend when you need to. Sometimes friends are better syntactically (e.g., in class Fred, friend functions let the Fred parameter to be secon

Thermodynamics, want to solve the thermodynamics problems on c language

want to solve the thermodynamics problems on c language

Difference between echo and print statement, Difference between Echo and pr...

Difference between Echo and print statement. print()and echo() are language constructs in PHP, both are used to output strings. Both statements are of almost same Speed. ech

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