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What is the purpose of realloc( )?

Question ListCategory: cWhat is the purpose of realloc( )?
denielshakespeare5 author asked 3 years ago
1 Answers
jamessmith05 author answered 3 years ago

The function realloc(ptr,n) uses two arguments.the first argument ptr is a pointer to a block of
memory for which the size is to be altered. The second argument n specifies the new size.

The size may be increased or decreased. If n is greater than the old size and if sufficient

space is not available subsequent to the old region, the function realloc( ) may create a new

region and all the old data are moved to the new region.

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