This is a sort of follow-up to http://gcc.gnu.org/ml/gcc-help/2007-01/msg00049.html The docs for the always_inline attribute at http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html say: "For functions declared inline, this attribute inlines the function even if no optimization level is specified." But testing and Ian's mail at http://gcc.gnu.org/ml/gcc-help/2007-01/msg00051.html say that you don't need the "inline" keyword on an "always_inline" function. Should the docs be clarified? For this code: $ cat b.cc inline void f() __attribute((always_inline)) { } $ g++ -std=gnu++0x b.cc -Wall -c -O3 b.cc:1:17: error: attributes are not allowed on a function-definition $ However, moving the attribute shows that actually it is allowed: $ cat b.cc inline __attribute((always_inline)) void f() { } $ g++ -std=gnu++0x b.cc -Wall -c -O3 $ If placing the attribute at that location is valid then the wording of the diagnostic is misleading, at best.
