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What is the difference between system call and library function call?
Wiki User
∙ 12y ago
On one level, there is no difference. They are both function calls. The only difference is in what they do.
System calls do something the user program cannot do; something having to do with system resources: memory, files, devices, network, terminals, processes etc.
However, system calls are usually implemented by library function calls because, at the root of the matter, a C or C++ program can only invoke function calls to call upon the operating system to do things.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoLibrary functions are predefined functions in the User space where System calls are predefined functions in the Kernel space.
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