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Value changed when parsing parameters

 
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Old 10-27-2011
Value changed when parsing parameters
I get a strange problem here, and ask for help.

Code:
    (gdb) 
        28        set_file_bit( file, bytePos, bitPos, argv[1] );
        (gdb) p argv[1]
        $3 = 0xbfffef5c "00"
        (gdb) s
        set_file_bit (file=0x804b008, bytePos=2, bitPos=2, binary=0x80490e5 "11") at util/file.c:112
        112        long int pos = ftell(file);

We can see the value of binary is 0x80490e5, not 0xbfffef5c , why?
argv is the parameter of function main.
some part of function main is

Code:
    int main( int argc, char** argv ){
        FILE* file = 0;
        file = fopen( "t.txt", "r+" );
        unsigned int bytePos = 2;
        unsigned int bitPos = 2;
        char buff[2] = { 0, 0 };
        get_byte( file, bytePos, 1, buff);
        set_file_bit( file, bytePos, bitPos, argv[1] );

Thanks
 
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LEARN ABOUT DEBIAN

graphics::primitive::insets

Graphics::Primitive::Insets(3pm)			User Contributed Perl Documentation			  Graphics::Primitive::Insets(3pm)

NAME

       Graphics::Primitive::Insets - Space between things

DESCRIPTION

       Graphics::Primitive::Insets represents the amount of space that surrounds something.  This object can be used to represent either padding
       or margins (in the CSS sense, one being inside the bounding box, the other being outside)

SYNOPSIS

	 use Graphics::Primitive::Insets;

	 my $insets = Graphics::Primitive::Insets->new({
	   top	   => 5,
	   bottom  => 5,
	   left    => 5,
	   right   => 5
	 });

METHODS

   Constructor
       new Creates a new Graphics::Primitive::Insets.

   Instance Methods
       as_array
	   Return these insets as an array in the form of top, right, bottom and left.

       bottom
	   Set/Get the inset from the bottom.

       equal_to
	   Determine if these Insets are equal to another.

       left
	   Set/Get the inset from the left.

       right
	   Set/Get the inset from the right.

       top Set/Get the inset from the top.

       zero
	   Sets all the insets (top, left, bottom, right) to 0.

AUTHOR

       Cory Watson, "<gphat@cpan.org>"

SEE ALSO

       perl(1)

COPYRIGHT &; LICENSE
       Copyright 2008-2010 by Cory G Watson.

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

perl v5.12.3							    2010-08-21					  Graphics::Primitive::Insets(3pm)