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Added malloc() review (#33307)

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Mahesh Jaganiya
2019-04-08 20:24:04 +05:30
committed by Christopher McCormack
parent f590fecb34
commit 97284992ec
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guide/english/c/malloc/index.md
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@ -68,6 +68,7 @@ int main()
* Malloc is used for dynamic memory allocation and is useful when you don't know the amount of memory needed during compile time. * Malloc is used for dynamic memory allocation and is useful when you don't know the amount of memory needed during compile time.
* Allocating memory allows objects to exist beyond the scope of the current block. * Allocating memory allows objects to exist beyond the scope of the current block.
* C passes by value instead of reference. Using malloc to assign memory, and then pass the pointer to another function, is more efficient than having the function recreate the structure. * C passes by value instead of reference. Using malloc to assign memory, and then pass the pointer to another function, is more efficient than having the function recreate the structure.
* ```malloc()``` reserves a block of memory of specified size and return a pointer of type void which can be casted into pointer of any form.
Difference between malloc() and calloc() Difference between malloc() and calloc()
1. Malloc() does not assignes the created memory to zero where as calloc() assignes the memory created to zero. 1. Malloc() does not assignes the created memory to zero where as calloc() assignes the memory created to zero.