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Full Discussion: How to Find who is calling me?
Top Forums Programming How to Find who is calling me? Post 62253 by uxbala on Monday 14th of February 2005 01:36:27 PM
Old 02-14-2005
Bug Who is Calling Me?
Thanks Prasad, do you know which header is __func__ is defined? as well in this way we need to change the function signature is it? can I know how to use this facility without changing the function signature? right now we are using hard coded function name in front of every function to make a track of the function. Please let me know if you have any other idea which is better than this.


Quote:
Originally Posted by S.P.Prasad
Standard C defines a predefined identifier __func__ which stores the name of the function as static const char currently being executed.

int function1(char * name )
{
// do something
printf ( "In f1 - Called by[%s]\n" , name ) ;
return 0 ;
}

char function2(char * name )
{
// do something
printf ( "In f2 - Called by [%s]\n" , name ) ;
function1((char *)__func__) ; // is function2 knows function2 is calling me?
return '' ;
}

int main()
{
function1((char *)__func__) ; // is function1 knows I called by main?
function2((char *)__func__) ;
return 0 ;
}
 

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LEARN ABOUT DEBIAN

file::find::rule::procedural

File::Find::Rule::Procedural(3pm)			User Contributed Perl Documentation			 File::Find::Rule::Procedural(3pm)

NAME

       File::Find::Rule::Procedural - File::Find::Rule's procedural interface

SYNOPSIS

	 use File::Find::Rule;

	 # find all .pm files, procedurally
	 my @files = find(file => name => '*.pm', in => @INC);

DESCRIPTION

       In addition to the regular object-oriented interface, File::Find::Rule provides two subroutines for you to use.

       "find( @clauses )"
       "rule( @clauses )"
	   "find" and "rule" can be used to invoke any methods available to the OO version.  "rule" is a synonym for "find"

       Passing more than one value to a clause is done with an anonymous array:

	my $finder = find( name => [ '*.mp3', '*.ogg' ] );

       "find" and "rule" both return a File::Find::Rule instance, unless one of the arguments is "in", in which case it returns a list of things
       that match the rule.

	my @files = find( name => [ '*.mp3', '*.ogg' ], in => $ENV{HOME} );

       Please note that "in" will be the last clause evaluated, and so this code will search for mp3s regardless of size.

	my @files = find( name => '*.mp3', in => $ENV{HOME}, size => '<2k' );
							   ^
							   |
		      Clause processing stopped here ------/

       It is also possible to invert a single rule by prefixing it with "!"  like so:

	# large files that aren't videos
	my @files = find( file	  =>
			  '!name' => [ '*.avi', '*.mov' ],
			  size	  => '>20M',
			  in	  => $ENV{HOME} );

AUTHOR

       Richard Clamp <richardc@unixbeard.net>

COPYRIGHT

       Copyright (C) 2003 Richard Clamp.  All Rights Reserved.

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

SEE ALSO

       File::Find::Rule

perl v5.12.4							    2011-09-19					 File::Find::Rule::Procedural(3pm)
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