Interested to Buy Any Domain ? << Click Here >> for more details...
the difference between new and malloc
- 5 Answers
- 15033 Views
- Siemens, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / prakruthi
new automatically calls the constructor while malloc()
dosen't., also new being an operator, it can be overloaded.
since malloc returns a void pointer it is necessary to
explicitly typecast it into an appropriate type of pointer.
This gets completely avoided when we are using new operator.
| Is This Answer Correct ? | 25 Yes | 2 No |
Answer / pushpankar mishra
malloc need type casting where as the new operator does not
require this incase if it is character type then char* is
needed in malloc where as for new we do not need this
| Is This Answer Correct ? | 10 Yes | 1 No |
Answer / sanish joseph
both malloc and new functions are used for dynamic memory
allocations and the basic difference is: malloc requires a
special "typecasting" when it allocates memory for eg. if
the pointer used is the char pointer then after the
processor allocates memory then this allocated memory needs
to be typecasted to char pointer i.e (char*).but new does
not requires any typecasting. Also, free is the keyword used
to free the memory while using malloc and delete the keyword
to free memory while using new, otherwise this will lead the
memory leak.
| Is This Answer Correct ? | 13 Yes | 8 No |
Answer / cl
The difference is the invocation of constructor: malloc
does not do it.
| Is This Answer Correct ? | 11 Yes | 7 No |
Answer / swati
In case of Malloc we need to specify the size of memory for
our data types. But in case of New we do not need to specify
the size.
| Is This Answer Correct ? | 4 Yes | 3 No |
features of OOPS
22 Answers Ness Technologies, Satyam,
What are two types of polymorphism?
What are the valid types of data that the main () can return in C/C++ language
What is ambiguity in inheritance?
The type of variable a pointer points to must be the part of pointer's definition so that:
How to overload postfix operator in c++
How do you achieve runtime polymorphism?
how to swap the variables without using temp and operators
for example A,B,C,D are class all the 4 class contain one method who() but the method who() implementaion is differnet among each class. the relation among the 4 class are A is base class and is inherited by B and C.and from this two B and C where D is inherited. the question is i want to display the output who() method in all the classes(A,B,C,D)the output of who() method is diferrent amond all the class(A,B,C,D) ------A------ virtuval who(print a) override | | who(print b) B C override who(print c) | | -------D------ override who(print d)
me get an assignent n its question is this 1.creat a set as in math i.ea={1,2} 2.insert element in it3. delete element don,t repeat any element 4.union 5. intersection of two sets plz help me i always pray for u n send me at ayeshawzd@hotmail.com f u have c++ how to program 5th addition then it is the 10.9 question in 10th chapter exercise
Write on signed and unsigned integers and give three (3) examples each
WAP to generate 2n+1 lines of the following pattern on the computer screen:
STL 
