is memcpy a system call?

rahul dev rahul_dev_agg at
Fri Jun 8 11:18:54 EDT 2012

> Is memcpy a system call?
> Thanks in advnace,

memcpy is *not* a system call. It is a standard C library function.
System calls are those where you enter the kernel mode and ask your OS to do something for you (like read/write from disk).

For memory copy you don't need to take the service of OS. 

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