On Tuesday 01 July 2008 07:33, x z wrote: > > I would like to see that GCC define a macro in the case it is being used to > compile a program. Currently there is a __GNUC__ macro defined by the GNU C > preprocessor CPP. That does not suit the need. As the CPP Manual says: > __GNUC__ is "defined by all GNU compilers that use the C preprocessor".
My monitor is not wide enough for your lines. > It seems to imply that any (non-GNU) compiler that > uses the GNU C preprocessor would also have __GNUC__ defined. Did you test this theory? > According to their respective manuals, Intel C++ Compiler > and Portable C Compiler also pre-define __GNUC__, possibly > because they use the GNU CPP. It's their fault that they lie to the user. > Therefore, the fact that __GNUC__ is defined does not necessarily mean the > GCC compiler proper is being used. There is a need for a macro that > definitely confirms that GCC is being used. (It is another matter if another > complier deliberately misleads people by defining the same macro.) And I hope > that macro can be documented in the GCC Manual. -- vda
