Read a small segment of large array and store in small array

I've a big char array,

Code:

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char big[100000];

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And a small array in a node of a linked list:

Code:

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struct Root
{
    char small[100];
    struct Root *next;
}

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How can i store each 100 bytes of large array into small array of each node with a single line of code? i.e. I don't want to copy byte by byte under a loop. Is it possible?

See memcpy,but you still need a loop.By this,you have not to copy byte by byte