How to avoid gibberish?

I am learning C Programming...


Now that I am in the process of writing programs, I have a doubt which I am not able to clear yet.
I tried searching the internet for that stuff without any luck.

I am posting a very simple program here.
The Program works absolutely fine. The only thing is that it picks up some gibberish.

My question is...is there any hard and fast rule to avoid getting this gibberish? If yes, what is it?

Here's the Program:

Code:

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/*Lara's basic salary is input through the keyboard.
 Her dearness allowance is 35% of basic salary, and house rent allowance is
 25% of basic salary. Write a program to calculate his gross salary. */

#include<stdio.h>
main ()
{
        int basic;
        float gross;
       
        printf("Enter your Basic Salary:%d");
        scanf("%d", &basic);

        gross = basic+(0.35*basic)+(0.25*basic);

        printf("Your Gross Salary is:  %f",gross);


}

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Quote:

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printf("Enter your Basic Salary:%d");

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remove the %d

LOL...that was funny!

Also, are there any other cases that I would have to check if I get gibberish?

I guess I found one such condition!

Thanks.

Quote:

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Originally Posted by duffmckagan

Also, are there any other cases that I would have to check if I get gibberish?

I guess I found one such condition!

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I don't get you. Please explain.

Quote:

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Originally Posted by noodles

remove the %d

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I will explain. %d is a conversion character for printf. It holds the place for a variable which you put in at the end. For example, to print out the value of the variable num, the code would be

Code:

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printf("%d", num);

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The %d holds the place and then the variable is an argument at the end. Your code uses %d but does not give a variable to print. This means that it just takes a number from anywhere and prints it. Just removing the %d will fix this.
~Sven

Got it...:)

Also enlighten me if there are any other such conditions you can think of...that may lead to gibberish...

Thanks...

Quote:

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Originally Posted by duffmckagan

Also enlighten me if there are any other such conditions you can think of...that may lead to gibberish...

Thanks...

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There's tons of ways to end up with gibberish, and they all come from misuse of your memory space. Using unitialized/dangling pointers and out-of-bounds array accesses, are both major causes of gibberish.

Your "gibberish" is some random value from your computer RAM.

This may also lead to "gibberish", unless you had intended it to happen!

Code:

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printf("%d", rand());

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Gibberish is in the eye of the beholder. One man's gibberish may be another man's gold.
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