foobar.h

1 // inclusion guard 2 #ifndef FOOBAR_H_ 3 #define FOOBAR_H_ 4  5 //// long names 6 //int foobar_some_func(int); 7 //void foobar_other_func(); 8 int some_func(int); 9 void other_func();10 11 // short names12 #ifdef NAMESPACE foobar13 #define some_func(...) foobar_some_func(__VA_ARGS__)14 #define other_func(...) foobar_other_func(__VA_ARGS__)15 #endif16 17 #endif

 

foobar.c

1 #define NAMESPACE foobar 2  3 #include "stdio.h" 4 #include "foobar.h" 5  6  7  8  9 int some_func(int a)10 {11     return a + 99;12 }

 

goobar.h

1 // inclusion guard 2 #ifndef GOOBAR_H_ 3 #define GOOBAR_H_ 4  5 //// long names 6 //int foobar_some_func(int); 7 //void foobar_other_func(); 8  9 // short names10 #ifdef NAMESPACE goobar11 #define some_func(...) goobar_some_func(__VA_ARGS__)12 #define other_func(...) goobar_other_func(__VA_ARGS__)13 #endif14 15 #endif

 

goobar.c

1 #define NAMESPACE goobar 2 #include "stdio.h" 3 #include "goobar.h" 4  5  6  7  8 int some_func(int a) 9 {10     return a + 8;11 }

 

main.c

1 #define NAMESPACE goobar 2 #define NAMESPACE foobar 3  4  5 #include "stdio.h" 6  7 #include "goobar.h" 8 #include "foobar.h" 9 10 11 //http://stackoverflow.com/questions/389827/namespaces-in-c12 void main()13 {14     int val = goobar_some_func(12);15     printf("value = %d\n", val);16 17     val = some_func(12);18     printf("value = %d\n", val);19 20     return;21 }