Below we have listed all the Dynamic Memory Allocation in C Interview Questions and answers. Feel free to comment on any Dynamic Memory Allocation in C Interview Questions or answer by the comment feature available on the page.
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C Dynamic Memory Allocation: malloc(), calloc(), free() & realloc() The exact size of array is unknown untill the compile time,i.e., time when a compiler compiles code written in a programming language into a executable form. Dynamic allocation is a pretty unique feature to C (amongst high level languages). It enables us to create data types and structures of any size and length to suit our programs need within the program.
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Is it better to use malloc() or calloc()? | 
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What are advantages and disadvantages of external storage class? |
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How can you determine the size of an allocated portion of memory? |
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when should the volatile modifier be used? | 
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Difference between calloc() and malloc()? |
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What?s wrong with this code? Char*p *p=malloc(10); |
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What is the purpose of realloc( )? |
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What is the heap? |
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What is static memory allocation and dynamic memory allocation? |
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what is the difference between the functions memmove() and memcpy()? |
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What?s wrong with this code? Char*p *p=malloc(10); |
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Difference between malloc and calloc? |
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How can you determine the size of an allocated portion of memory ? |
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What is the difference between calloc() and malloc() ? |
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Difference between calloc and malloc ? | 
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What is the Difference between calloc and malloc? |
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What is the difference between new/delete and malloc/free? |
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Why do we need to test weather it is memory leak or not? How are we going to know that? |
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when memory will be created after defining in c and c++; |
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Why does malloc(0) return valid memory address ? What's the use ? |
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