c - Including .h files for functions -


i passing struct pointer function in .c file. need include header file in both .c files?

//test.h typedef struct {    int number;  } stats;  //test.c #include "test.h" void function(){     func2(s); }  //stats.c //do need : include "test.h" void func2(stats * ptr){     ptr->number = 10; }

yes, stats.c needs structure definition in order know num member in stats structure.

if passing pointer along other function, wouldn't need structure definition; need forward declaration of structure type name; structure pointers required compatible way, , allows pointer treated opaque handle. since func2 accesses member, it's not opaque.


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