You are here:   HomeData StructuresBasic of Data StructureWhat is difference between malloc()/free() and new/delete
by Dinesh Thakur Category: Data Structure

1.) “new and delete” are preprocessors while “malloc() and free()” are functions. we dont use brackets will calling new or delete.

2.) No need of allocate the memory while using “new” but in “malloc()” we have to use “sizeof()”.

3.) “new” will initlize the new memory to 0 but “malloc()” gives random value in the new alloted memory location [better to use calloc()]

 new() allocates continous space for the object instace

malloc() allocates distributed space.

new() is castless, meaning that allocates memory for this specific type,

malloc(), calloc() allocate space for void * that is cated to the specific class type pointer.





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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to contact us.



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