I have answer correct?

What do the following statements?

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int f1(int a, double (*f)(float *b));

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f1 is a function that returns an integer and has two parameters:first is a int and the second is an pointer to a function than returns an double and than has a parameter:a pointer to a float.

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int f2(int a, double f(char c), int (*g)(int d, int *e));

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f2 is function than returns an integer and has three parametrers:a integer,a function f than returns a double and has a parameter(a char), a pointer to a function than returns a int and has two parameters:a int and a pointer to int.

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float *f3(double *a, int * (*f)(double));

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f3 is a function than return a pointer to a float and has two parameters: a pointers to a double,a pointer to a function than returns a pointer to a int whith a parameter(a double)

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double (*fc)(int a, float ff(void));

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fc is a pointer to a function than returns a double and has two parameters:an int,a function than returns a float and has non parameters.

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int *(*fd)(float *a, double *f(int *d));

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fd is a pointer to a function than returns a pointer to a int and has two parameters:a pointer to a int,a function than returns a pointer to a double and has a pointer to a int

Just looked at f1, and the error is that the function f parameter is a pointer to float, not a pointer to double.

You've got the right idea, however.

first time I've written on a sheet, After that I wrote on the computer...Maybe that's why I wrote wrong

I want to learn pointer to functions
If these answers are correct you can I still put a few questions?

f2 looked good, watch your spelling of parameters though. (doesn't bother me, but it might bother your boss or instructor).

Sure, if it's on this topic, ask away! ;)

If it's on a different topic, please start up a new thread so it gets the attention it deserves.

ok,f2 is correct,but f3,fd,fc ?

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Sure, if it's on this topic, ask away!

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no,i wanna - you ask me any questions about "pointer to functions"(outside structures)

What's wrong with this one?
Code:

Code:

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int *(*fd)(float *a, double *f(int *d));

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Quote:

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fd is a pointer to a function than returns a pointer to a int and has two parameters:a pointer to a int,a function than returns a pointer to a double and has a pointer to a int

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cdecl
Can be helpful tools. Of course, it's still important to understand... the concept.
The only thing you need to take note is

Code:

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  void foo( double f(double) );
  is the same as
  void foo( double (*f)(double)) ;

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Quote:

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fd is a pointer to a function than returns a pointer to a int and has two parameters:a pointer to a float,a function than returns a pointer to a double and has a pointer to a int

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now is correct?

Quote:

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Originally Posted by Bayint Naung

cdecl
Can be helpful tools. Of course, it's still important to understand... the concept.
The only thing you need to take note is

Code:

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  void foo( double f(double) );
  is the same as
  void foo( double (*f)(double)) ;

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sow

Quote:

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double f(double)

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is a pointer to function?

cdecl is only for linux?

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Originally Posted by nutzu2010

now is correct?

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Yes. :D