Thanks, I already got the answer from John <eljay@xxxxxxxxx>. It can be useful for ohers, so here are the details: The compiler has some limits inside to make functions inline. My source cannot be published here because of its complexity, and that was the problem: the mentioned class was inherited from other classes, using more inline functions. The option "-Winline" gives more information in such cases. The essence is the option "max-inline-insns-single", which is described in details in "man gcc". The inlining limits can be changed this way. The source code is mentioned in my previous mail "C++ in embedded systems" Thanks again, K. Gy. 2007. július 13. 15.46 dátummal jlh ezt írta: > Kövesdi György wrote: > > I found that the function other_class::f2() cannot be inlined > > I filled the blanks in your example with simple code and f1 as > well as f2 were inlined into the called of f2 when using -O1. You > should provide a complete compilable example of a situation that > doesn't do what you want. > > > Trying to add __attribute__((inline)) the result is a warning > > message about ignoring this attribute. > > I guess it's because if you define a method directly in the class > body, you implicitely tell the compiler to inline it, thus making > this attribute redundant. See [1]. (It still only happens with > optimization turned on.) > > [1] http://www.parashift.com/c++-faq-lite/inline-functions.html#faq-9.8
