Alternatives/Tools for #define hell C/C++ -


in our c/c++ project use configuration header (~1000 lines) full of #ifdef's , #defines

#if (defined(hw_1) || defined(some_technology_supported)) && defined(other_technology_supported)  #define some_feature_available #endif

in our build configuration predefine defines passed compiler. results in different defines (like some_feature_aveilable) in our configuration header.

since our configuration header quite big, there bit of mess.

are there alternatives #define hell?

or there tools see in case defines set.

we developing embedded firmware can't replace conditional compiling runtime if's.

in case #define's in single configuration file, can try doing preprocessor-only compilation , finding defined macros. e.g.,

$ gcc -dfeature1 -dfeature2 -e configuration.h | grep '#define'

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