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Aakash Panchal 2020-05-17 14:08:58 +05:30 committed by GitHub
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@ -941,7 +941,7 @@ Ex. `int *ptr = new int;`
Ex. `int *ptr_arr = new int[10];`
Note that length can be any value you provide at run time or compile time.
The way `new` operator works is that it first checks whether a computer has free memory of the amount requested by a programmer.
The way `new` operator works is that it first checks whether a computer has free memory of the amount requested by a programmer.
If yes, then it will return the address of that available memory. In case that much memory is not available, it will result in `bad_alloc` exception followed by termination of the program.
@ -1011,6 +1011,8 @@ A memory leak happens when your program loses the address of dynamically allocat
**Solution:** Delete(deallocate memory) before anything goes wrong.
### Dangling pointer
A pointer that is pointing to a deallocated memory is called a **dangling pointer**. Dereferencing or again deallocating a dangling pointer will lead to undefined behavior(run-time error).