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"Yohji" <> wrote in message
news: oups.com...
> wrote:
>> I found the following declaration in some header file.
>> Can somebody help me how to interpret this ?
>> void (*signal( int sig, void (*function)(int)) (int) );
>> Thanx for any help in advance ....
> Hmm,it is a little difficult.The signal functions is one of POSIX.

Not POSIX, ISO 7.14.1.1

pete wrote on 15/07/05 :
> Emmanuel Delahaye wrote:
>>
>> Kenneth wrote on 15/07/05 :
>>> void (*signal( int sig, void (*function)(int))) (int);
>>
>> This is a case where typedefs are useful
>>
>> typedef int signal_f (int);
>>
>> signal_f signal (int sig, signal_f * function);
>
> That gives my compiler an error:
> error C2091: function returns function
>
> This compiles OK:
> typedef int (*signal_f) (int);
> signal_f signal (int sig, signal_f * function);

No. The right code is:

typedef int (*signal_f) (int);
signal_f signal (int sig, signal_f function);

or

typedef int signal_f (int);
signal_f *signal (int sig, signal_f *function);

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html
The C-library: http://www.dinkumware.com/refxc.html

..sig under repair