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Full Discussion: difficult problem with function declaration
Top Forums UNIX for Dummies Questions & Answers difficult problem with function declaration Post 302482542 by garag11 on Tuesday 21st of December 2010 10:47:17 PM
Old 12-21-2010
difficult problem with function declaration
Hello,
I have a problem with the declaration of a function.
This is how I declare the function :

c:63: void foo(threadpool *tp,void (*func)(void*), (void*)arg);

Inside main, I call it like this:

main(){
..........
threadpool y;
c:104: foo(y,foo2,(void*)x);

}

and here is the foo2,and foo:
c:109:void foo(threadpool *tp,void (*func)(void*), (void*)arg){.........}
c:110: void * foo2(void *arg) {......}

gcc gives me those things:

c:63: error: expected declaration specifiers or ‘...’ before ‘(’ token
c:104: warning: passing argument 2 of ‘foo’ from incompatible pointer type
c:63: note: expected ‘void (*)(void *)’ but argument is of type ‘void * (*)(void *)’
c:104: error: too many arguments to function ‘foo’
c:110: error: expected declaration specifiers or ‘...’ before ‘(’ token
c:110: error: expected identifier or ‘(’ before ‘{’ token

I dont know what the problem is,even if I tried a lot of things.Please help!
thanks in advance
 

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LEARN ABOUT DEBIAN

ppi::statement::variable

PPI::Statement::Variable(3pm)				User Contributed Perl Documentation			     PPI::Statement::Variable(3pm)

NAME

       PPI::Statement::Variable - Variable declaration statements

SYNOPSIS

	 # All of the following are variable declarations
	 my $foo = 1;
	 my ($foo, $bar) = (1, 2);
	 our $foo = 1;
	 local $foo;
	 local $foo = 1;
	 LABEL: my $foo = 1;

INHERITANCE

	 PPI::Statement::Variable
	 isa PPI::Statement::Expression
	     isa PPI::Statement
		 isa PPI::Node
		     isa PPI::Element

DESCRIPTION

       The main intent of the "PPI::Statement::Variable" class is to describe simple statements that explicitly declare new local or global
       variables.

       Note that this does not make it exclusively the only place where variables are defined, and later on you should expect that the "variables"
       method will migrate deeper down the tree to either PPI::Statement or PPI::Node to recognise this fact, but for now it stays here.

METHODS

   type
       The "type" method checks and returns the declaration type of the statement, which will be one of 'my', 'local', 'our', or 'state'.

       Returns a string of the type, or "undef" if the type cannot be detected (which is probably a bug).

   variables
       As for several other PDOM Element types that can declare variables, the "variables" method returns a list of the canonical forms of the
       variables defined by the statement.

       Returns a list of the canonical string forms of variables, or the null list if it is unable to find any variables.

   symbols
       Returns a list of the variables defined by the statement, as PPI::Token::Symbols.

TO DO

       - Write unit tests for this

SUPPORT

       See the support section in the main module.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2001 - 2011 Adam Kennedy.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.10.1							    2011-02-26					     PPI::Statement::Variable(3pm)
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