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I think it would be easier to use function pointers if I created a typedef for a function pointer, but I seem to be getting myself tripped up on some syntax or usage or something about typedef for function pointers, and I could use some help.
I've got
int foo(int i){ return i + 1;} typedef <???> g; int hvar; hvar = g(3) That's basically what I'm trying to accomplish I'm a rather new C programmer and this is throwing me too much. What replaces <???> ?
673
typedef is a language construct that associates a name to a type. myinteger i; // is equivalent to int i; mystring s; // is the same as char *s; myfunc f; // compile equally as void (*f)(); As you can see, you could just replace the typedefed name with its definition given above.
A typedef, or a function-type alias, helps to define pointers to executable code within memory. Simply put, a typedef can be used as a pointer that references a function. Given below are the steps to implement typedefs in a Dart program.
The typedef is a keyword used in C programming to provide some meaningful names to the already existing variable in the C program. It behaves similarly as we define the alias for the commands. In short, we can say that this keyword is used to redefine the name of an already existing variable.
Your question isn't clear, but I think you might want something like this:
int foo(int i){ return i + 1;} typedef int (*g)(int); // Declare typedef g func = &foo; // Define function-pointer variable, and initialise int hvar = func(3); // Call function through pointer If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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