#pragma rarely_called(funcname[, funcname])
This pragma provides a hint to the compiler that the specified functions are called infrequently. The compiler can then perform profile-feedback style optimizations on the call-sites of such routines without the overhead of a profile-collections phase. Because this pragma is a suggestion, the compiler can choose not perform any optimizations based on this pragma.
The specified functions must be declared with a prototype or empty parameter list prior to this pragma. The following example shows #pragma rarely_called:
extern void error (char *message); #pragma rarely_called(error)