function-pointers

I have this problem: template<typename T> class Bubu { ... int (*comparer)(const T t1, const T t2); ... public: Bubu(int (*_comparer)(const T t1, const T t2)) { comparer = _comparer; } }; And in another file: Bubu<char*> asd(strcmp); Error: error C2664: 'Bubu<T>::Bubu(int (__cdecl *)(const T,const T))' : cannot convert parameter 1 from 'int (__cdecl *)(const char *, const char *)' to 'int (__cdecl *)(const T,const T)' I don't understand why. Shouldn't the compiler see a "char*" instead of "T" there? EDIT: the Ideone.com-ready code: int asdf(const char* a, const char* b) { return 0; } template

Closed . This question needs details or clarity . It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post . Closed last year . Let's say one wanted to create an array that could hold multiple function pointers & of different types .. how would he go about doing so ? Perhaps an array of void pointers could work ?... Well as it turns out, no since in order to use the functions stored in the void pointers you'd have to convert/cast them (the void pointers) back to function pointers and... "A conversion between a function

++p->i p++->i *p->i *p->i++ (*p->i)++ *p++->i I don't understand these statements above, I wrote a small test program to understand them. #include <stdio.h> struct my_structure { int i; }; void main() { struct my_structure variable = {20}; struct my_structure *p = &variable; printf("NAME: %d\n", ++p->i); printf("NUMBER: %d\n", p++->i); printf("RANK: %d", *p->i++); printf("name: %d\n", *p->i++); printf("number: %d\n", (*p->i)++); printf("rank: %d", *p++->i); } Here's what the output I got after I commented the last four print statements: NAME: 21 NUMBER: 21 And after uncommenting the code and

what is wrong with the following code? parseCounter1() and parseCounter1() below are two functions. I put their pointers in const OptionValueStruct so that they can be called accordingly when each element of option_values[] are gone through: typedef struct OptionValueStruct{ char counter_name[OPTION_LINE_SIZE]; int* counter_func; } OptionValueStruct_t; const OptionValueStruct option_values[] = { {"Counter1", (*parseCounter1)(char*, char**)}, {"Counter2", (*parseCounter2)(char*, char**)}, }; const OptionValueStruct *option = NULL; for(int i = 0; i< sizeof(option_values)/sizeof(OptionValueStruct