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

Padovan string, write a program that counts the number of occurrences of th...

write a program that counts the number of occurrences of the string in the n-th padovan string p(n)   program 1 : package test.padovanstring; public class PadovanString {

C language, WHAT IS A C LANGUAGE? C IS A PROGRAMMING?

WHAT IS A C LANGUAGE? C IS A PROGRAMMING?

Tree, Ask question #M i want to undersatnd about tree structures like node ...

Ask question #M i want to undersatnd about tree structures like node leaf etcinimum 100 words accepted#

Define a class?, Define a class? A: It is an expanded concept of a data ...

Define a class? A: It is an expanded concept of a data structure: rather than holding only data, it can hold data and functions both.

What are the different types of endless loops, What are the different types...

What are the different types of endless loops? An endless loop can be of two types: i.) A loop that is intentionally designed to go round and round until the condition withi

C program to check factorial, C Program to check FACTORIAL   main() ...

C Program to check FACTORIAL   main() {             int i,j,m,fact,sum=0;           clrscr();           printf("ENTER THE NO.: ");           scanf("%d",&m);

String program, Write a C++ program which does the following: 1. Asks th...

Write a C++ program which does the following: 1. Asks the user to enter the following text "Four score and seven years ago there was a man named Joey Bagadonuts." 2. Save thi

Write a c program to compute the value of a sine wave, Write a C program to...

Write a C program to compute the value of a sine wave from 0 to 2P with an increment of 0.1 radians.   #include stdio.h #include math.h #define pi 3.1415927 void main() {   c

Link list, For this program you will add and test 2 new member functions to...

For this program you will add and test 2 new member functions to the IntSLList class posted on the website. The two member functions are: insertByPosn(int el, int pos) Assuming t

How do i develop a subscript operator for a matrix class?, Employ operator ...

Employ operator () instead of operator[]. While you have multiple subscripts, the cleanest way to do it is along with operator () instead of with operator[]. The reason is that

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