What is the value of uninitialized array in C?

The first element of this array will always be a garbage value ( like printf(“\%d”,array[0]); will be some garbage value). But other values such as from array[1] to array[10] will be by default initialised as zero(0) .

What is the default value of elements of an Uninitialised array?

From the Java Language Specification: Each class variable, instance variable, or array component is initialized with a default value when it is created (§15.9, §15.10): For type byte, the default value is zero, that is, the value of (byte)0 . For type short, the default value is zero, that is, the value of (short)0 .

What is the value of an array in C?

Arrays in C are indexed starting at 0, as opposed to starting at 1. The first element of the array above is point[0]. The index to the last value in the array is the array size minus one. In the example above the subscripts run from 0 through 5.

What is the value of an uninitialized array variable?

zero
Unfortunately, the very first line of input data did not appear in the output! Upon first glance, we would think that this program should have worked. The variable lines is uninitialized, and uninitialized variables have the numeric value zero.

What values are stored in uninitialized variables?

An uninitialized variable has an undefined value, often corresponding to the data that was already in the particular memory location that the variable is using. This can lead to errors that are very hard to detect since the variable’s value is effectively random, different values cause different errors or none at all.

What is the default value of array data type Wchar_t?

The default value for wchar_t is zero so there’s no need to even give any values in the brackets.

How do you access the values within an array?

Elements of an array are accessed by specifying the index ( offset ) of the desired element within square [ ] brackets after the array name. Array subscripts must be of integer type. ( int, long int, char, etc. )

What is the value of the array if not initialized?

value 0
If an array is partially initialized, elements that are not initialized receive the value 0 of the appropriate type. The same applies to elements of arrays with static storage duration.

What happens if we use an uninitiated array in C language?

Using an uninitialized array in C programming language: Here, we will learn that what happens if we use an uninitiated array in C language? If we use any uninitialized array in C program, compiler will not generate any compilation and execution error i.e. program will compile and execute properly.

What happens if an array is not initialized in C?

If we use any uninitialized array in C program, compiler will not generate any compilation and execution error i.e. program will compile and execute properly. If the array is uninitialized while declaring and even after the declaration if you do not initialize then, you may get unpredictable result.

Do array elements have indeterminate values?

The array elements have indeterminate value except if the array it is defined at file-scope or have static storage-class specifier then the array elements are initialized to 0. char inputBuffer3 [12]; // elements have indeterminate value!

What is the default value of array in C with no values?

If the array is Local variable ( declared inside a function) , then it is unknown as it will take garbage value. If it is declared Global or static, then it will be initialized to 0 by default if no values are provided. What is the default value of members of a char array in C?