This mailing list is for discussing development *of* gcc, not help using it. Your question would be appropriate on the gcc-h...@gcc.gnu.org list, please take any follow-up there, thanks.
On 7 February 2012 13:57, Alexandre Almeida wrote: > > It seems to be impossible to define an inline member function externally with > GCC. When attempting to do so, the linker returns an error. Yes, see http://www.parashift.com/c++-faq/inline-functions.html#faq-9.7 You can't do that. It wouldn't be inline if it's external. > Here is how I attempted to do it: > > Header file: > ----------------- > class C > { > public: > void foo(); > }; > > CPP file: > ------------- > inline void C::foo() > { > [...] > } In the .cpp file the compiler sees the function is never used so doesn't bother generating code for it. The C++ standard requires that an inline function is defined in every file that uses it (that's what makes it "inline"). When compiling the .cpp file the compiler knows that the function isn't used in that file, and knows that it must be defined in any other file that needs it (because that's what the standard requires) so there is no need to generate code for the inline function in that file.
