How can we stop the value of garbage?

Garbage value is nothing but a by default value assigned to the local variables untill and unless some value is not assign to it by programmer. To clear it just initialize it with some value, it is the only solution. If you are not using that variable to multiply in itself. Then you can initiate it by a=0.

What is the garbage value in C?

If this variable a is only declared but no longer used in the program is called garbage value. For example: int a, b; b=10; printf(“\%d”,b); return 0; Here it’s only declared but no longer assigned or initialized. So this is called garbage value.

What is the default value of array in C?

For char arrays, the default value is ‘\0’ . For an array of pointers, the default value is nullptr . For strings, the default value is an empty string “” . That’s all about declaring and initializing arrays in C/C++.

What are garbage collectors?

Garbage collectors usually work in pairs, picking up and removing waste, recyclable goods, or yard debris from residential neighbourhoods, commercial business centres, and public parks.

What happens if a variable is not initialized in C?

Unlike some programming languages, C/C++ does not initialize most variables to a given value (such as zero) automatically. Thus when a variable is assigned a memory location by the compiler, the default value of that variable is whatever (garbage) value happens to already be in that memory location!

What will happen if you don’t initialize a local variable and try to print it?

If the programmer, by mistake, did not initialize a local variable and it takes a default value, then the output could be some unexpected value. So in case of local variables, the compiler will ask the programmer to initialize it with some value before they access the variable to avoid the usage of undefined values.

Why do I get garbage when I try to print array?

So when you attempt to print array [5] you are getting garbage, because you don’t own this memory and you haven’t initialized it in the first while loop. You are unlucky, because your memory region is very small and you skipped only one position out of bounds, so you didn’t get a segmentation fault.

Why is my array printing strange characters?

That’s the way functions that play with char arrays (cout in this case) know when the string finish in memory. If you forget the ‘\\0’ character at the end of the array, cout prints all the chars in the array and then goes on printing any data in memory after the array. These other data is rubbish, and that’s why you see these strange characters.

Why is mystr not printing the garbage value?

Observe one thing when you execute same code in different system the garbage value may vary. So, its the garbage value present at the memory location of mystr is printing.If you initialize this variable then mystr will not print that garbage instead it will print the initialized value .

Why does printf continue to print garbage values when string ends?

Therefore, printf cannot tell where the string ends and continues to print garbage values. If you want the string to hold “ram”, you need to make its length 4. 3 for the characters plus 1 for the null value. Thanks for contributing an answer to Stack Overflow!