builit-in function

Ian Lance Taylor iant@google.com
Tue Aug 1 13:57:00 GMT 2006


chingfu <zongyue.chen@gmail.com> writes:

>    How the builit-in function work? Does built-in function will reference to
> GLIB ?

When a built-in function is supported on your architecture, it will
be compiled directly, and will not result in an external reference.

Some built-in functions are always supported.  Some are only supported
directly if the architecture supports them.  Some have a fallback in
libgcc.a, which means that the C library does not need to provide a
version.

If you have a question about a specific built-in function, please ask
that question.

Ian



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