See a problem in else if statement

Dangling else problem

-
Image
Hello, This problem comes when we use else if statement and do some mistake more describe is given below......... Dangling else problem: One of the major problem with nested if is dangling else problem. The problem arises when both outer if statement inner if statement might pair with common else statement. Thus the compiler is not able to judge to pair the else with which statement. The solution to this problem is given by the compiler that it pairs else with the recent if thus sometimes giving wrong result.                                           Hence the programmer should put early bracket wherever required. This post is may very short because my only aim was to describe this problem. Thank you, Keep supporting............. 
1 comment

Function Part 2

-

                              C programming 


Type of function:

  • No return type no argument - void small ( )
  • return type & no argument  - int small ( )
  • No return type & argument - void small ( )
  • Return type & argument - int small ( int , int)

Advantages of function:

There are several advantages of function -
  1. Reduction in code redundancy
  2. Enabling code reuse
  3. Better readability
  4. Information hiding
  5. Improved debugging & testing
  6. Improved maintainability 

Clarification of function:

Function can be classified as -
  1. user defined function 
  2. Library function

1. Library function:

There are those functions whose functionality has already been developed by someone and are available to the user for use these are called library functions or pre defined function.
Ex. printf(), scanf(), sqrt(), pow() etc.

2. User defined function:

These are functions that are defined by the user at the time of writing a program the user. Develop the functionality by writing the body of the function also called programmer defined function.

Need of user defined function:

  • Facilitates top down modules programming approach .
  • Length of source program can be reduced
  • Easy to locate and isolate a specific logic.
  • A function can be used by many other programs.

Return type:

The return statement is used to return the result of the computation program control back to the calling function. There are three forms of return statement -

return i:

Used when function does not return any value. 

return expression :

 Used when function returns result of calling function to called function 

function name:

The rule for a function name is same as for a variable name.

Type of parameter:

It specifies the kind of parameter that are used in function for eg. int, char, float etc.

Number of parameter:

It specifies how many parameter are used in function. 

Ex.

Waf to add two numbers-

#incldue<stidio.h>
void sum (int,int)
main()
{
int a,b;
printf("Enter No.");
scanf("%d %d",&a,&b);
sum(a,b);
}
void sum (int c, int d)
{
int s;
s=c+d;
pritnf("Sum=%d",s);
}



Thank you,
keep supporting..............

Comments

Post a Comment

Popular posts from this blog

Permutations of Strings hackerrank solution in C || Permutations of Strings

-
  Permutations of Strings Strings are usually ordered in lexicographical order. That means they are ordered by comparing their leftmost different characters. For example,   because  . Also   because  . If one string is an exact prefix of the other it is lexicographically smaller, e.g.,  . Given an array of strings sorted in lexicographical order, print all of its permutations in strict lexicographical order. If two permutations look the same, only print one of them. See the 'note' below for an example. Complete the function  next_permutation  which generates the permutations in the described order. For example,  . The six permutations in correct order are: ab bc cd ab cd bc bc ab cd bc cd ab cd ab bc cd bc ab Note:  There may be two or more of the same string as elements of  . For example,  . Only one instance of a permutation where all elements match should be printed. In other words, if  , the...
Read more

use of getchar and putchar

-
Hello guys today i will tell you in this post , use of putchar and getchar............                          C programming Input and output functions: Generally we use printf and scanf as input output functions respectively  but there are various functions available for input and output. Input and output for character: Reading a character: In general scanf function is can be used to input a character but instead of that we can use getchar function. syntax: variable name=getchar();                  There are some functions that are used to test a character based on some requirement - isdigit (ch): It returns a non zero when character digit is digit otherwise returns a 0 value.                                                  ...
Read more

Libraray Fine Hackerrank solution in C || Balanced Brackets Hackerrank solution in C

-
  Library Fine Your local library needs your help! Given the expected and actual return dates for a library book, create a program that calculates the fine (if any). The fee structure is as follows: If the book is returned on or before the expected return date, no fine will be charged (i.e.:  . If the book is returned after the expected return  day  but still within the same calendar month and year as the expected return date,  . If the book is returned after the expected return  month  but still within the same calendar year as the expected return date, the  . If the book is returned after the calendar  year  in which it was expected, there is a fixed fine of  . Charges are based only on the least precise measure of lateness. For example, whether a book is due January 1, 2017 or December 31, 2017, if it is returned January 1, 2018, that is a year late and the fine would be  . Function Description Complete the  libraryFine...
Read more