C

Topic: Memory Allocation

What is the difference between calloc() and malloc() ?

1. calloc(...) allocates a block of memory for an array of elements of a certain size. By default the block is initialized to 0. The total number of memory allocated will be (number_of_elements * size).malloc(...) takes in only a single argument which is the memory required in bytes. malloc(...) allocated bytes of memory and not blocks of memory like calloc(...).

2. malloc(...) allocates memory blocks and returns a void pointer to the allocated space, or NULL if there is insufficient memory available.calloc(...) allocates an array in memory with elements initialized to 0 and returns a pointer to the allocated space. calloc(...) calls malloc(...) in order to use the C++ _set_new_mode function to set the new handler mode.

Browse random answers:

what is Memory Allocation?
What is the heap? 
Difference between calloc and malloc ? 
Why does malloc(0) return valid memory address ? What's the use ?
How can you determine the size of an allocated portion of memory?
What are advantages and disadvantages of external storage class?
What is the purpose of realloc( )?
Difference between calloc() and malloc()?
What is the difference between new/delete and malloc/free?
What?s wrong with this code?Char*p*p=malloc(10);
Is it better to use malloc() or calloc()?
Why do we need to test weather it is memory leak or not? How are we going to know that?
what is the difference between the functions memmove() and memcpy()?
How to write calloc() in terms of malloc()? ie malloc() should initialise the memory to zero after allocating it ?
when should the volatile modifier be used?
How can you determine the size of an allocated portion of memory ?
when memory will be created after defining in c and c++;
What is static memory allocation and dynamic memory allocation?
What?s wrong with this code?Char*p*p=malloc(10);
How can you determine the size of an allocated portion of memory ?
Difference between malloc and calloc?
What is the difference between calloc() and malloc() ?
What are the differences between formal arguments and actual arguments?
 What is static memory allocation and dynamic memory allocation? 
What is difference between template and macro?
How do I compare character data stored at two different memory locations? 
How do I compare character data stored at two different memory locations?
What are memory models?
How to get the memory size ?
How to use realloc() to dynamically increase size of an already allocated array?
How do I write code that reads data at memory location specified by segment and offset?
How do I compare character data stored at two different memory locations?