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Full Discussion: Simple Calculator
Homework and Emergencies Homework & Coursework Questions Simple Calculator Post 302784895 by balajesuri on Saturday 23rd of March 2013 12:05:51 PM
Old 03-23-2013
Quote:
Originally Posted by herb bertz
In the command line enter the script file
/home/etc/mycalc or /home/etc/mycalc 1 + 1 . My script file should identify if the data needed to do the calculating is present (mycalc 1 + 1)
or if it needs to ask for input (mycalc).
Play around with positional parameters if you want to do such exercises. Here's a sample program to get you started.

Code:
[user@host ~]$ cat test.sh
#! /bin/bash

if [ $# -ne 2 ] # $# here is a special shell variable which gives you the number of command line arguments supplied
then
    echo "Please supply exactly two arguments."
    exit
fi

first=$1
second=$2

echo "First argument is: $first"
echo "Second argument is: $second"
[user@host ~]$ ./test.sh hello world
First argument is: hello
Second argument is: world
[user@host ~]$ ./test.sh
Please supply exactly two arguments.
[user@host ~]$

Quote:
Originally Posted by herb bertz
Also can anyone tell me how to automaticly get line numbers put in the script so when an error comes up it is easy to find the line without counting the lines?
Open the program in vi vi test.sh. In the command mode (press ESC key, if you're unsure which mode you're currently in) and type :set nu. This will display the line numbers without affecting the program functionality. To remove the line numbers type this in command mode :set nonu. And I hope you're using vi for writing your scripts and not some GUI editor.
 

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LEARN ABOUT DEBIAN

__gnu_pbds::detail::binary_heap_point_const_iterator_

__gnu_pbds::detail::binary_heap_point_const_iterat__gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >(3cxx)

NAME

       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc > -

SYNOPSIS

       Inherited by __gnu_pbds::detail::binary_heap_const_iterator_< Value_Type, Entry, Simple, _Alloc >.

   Public Types
       typedef _Alloc::template
	   rebind< value_type >
	   ::other::const_pointer const_pointer"
       typedef _Alloc::template
	   rebind< value_type >
	   ::other::const_reference const_reference"
       typedef
	   trivial_iterator_difference_type difference_type"
       typedef trivial_iterator_tag iterator_category
       typedef _Alloc::template
	   rebind< value_type >
	   ::other::pointer pointer"
       typedef _Alloc::template
	   rebind< value_type >
	   ::other::reference reference"
       typedef Value_Type value_type

   Public Member Functions
       binary_heap_point_const_iterator_ (entry_pointer p_e)
       binary_heap_point_const_iterator_ ()
       binary_heap_point_const_iterator_ (const binary_heap_point_const_iterator_ &other)
       bool operator!= (const binary_heap_point_const_iterator_ &other) const
       const_reference operator* () const
       const_pointer operator-> () const
       bool operator== (const binary_heap_point_const_iterator_ &other) const

   Public Attributes
       entry_pointer m_p_e

   Protected Types
       typedef _Alloc::template
	   rebind< Entry >
	   ::other::pointer entry_pointer"

Detailed Description
   template<typename Value_Type, typename Entry, bool Simple, typename _Alloc>class __gnu_pbds::detail::binary_heap_point_const_iterator_<
       Value_Type, Entry, Simple, _Alloc >
       Const point-type iterator.

       Definition at line 55 of file binary_heap_/point_const_iterator.hpp.

Member Typedef Documentation
   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef _Alloc::template
       rebind<value_type>::other::const_pointer __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc
       >::const_pointer
       Iterator's const pointer type.

       Definition at line 77 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef _Alloc::template
       rebind<value_type>::other::const_reference __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc
       >::const_reference
       Iterator's const reference type.

       Definition at line 87 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef trivial_iterator_difference_type
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::difference_type
       Difference type.

       Definition at line 65 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef trivial_iterator_tag
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::iterator_category
       Category.

       Definition at line 62 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef _Alloc::template rebind<value_type>::other::pointer
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::pointer
       Iterator's pointer type.

       Definition at line 72 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef _Alloc::template rebind<value_type>::other::reference
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::reference
       Iterator's reference type.

       Definition at line 82 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > typedef Value_Type
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::value_type
       Iterator's value type.

       Definition at line 68 of file binary_heap_/point_const_iterator.hpp.

Constructor &; Destructor Documentation
   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > __gnu_pbds::detail::binary_heap_point_const_iterator_<
       Value_Type, Entry, Simple, _Alloc >::binary_heap_point_const_iterator_ () [inline]
       Default constructor.

       Definition at line 95 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > __gnu_pbds::detail::binary_heap_point_const_iterator_<
       Value_Type, Entry, Simple, _Alloc >::binary_heap_point_const_iterator_ (const binary_heap_point_const_iterator_< Value_Type, Entry, Simple,
       _Alloc > &other) [inline]
       Copy constructor.

       Definition at line 99 of file binary_heap_/point_const_iterator.hpp.

Member Function Documentation
   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > bool __gnu_pbds::detail::binary_heap_point_const_iterator_<
       Value_Type, Entry, Simple, _Alloc >::operator!= (const binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc > &other) const
       [inline]
       Compares content (negatively) to a different iterator object.

       Definition at line 126 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > const_reference
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::operator* () const [inline]
       Access.

       Definition at line 113 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > const_pointer
       __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >::operator-> () const [inline]
       Access.

       Definition at line 105 of file binary_heap_/point_const_iterator.hpp.

   template<typename Value_Type , typename Entry , bool Simple, typename _Alloc > bool __gnu_pbds::detail::binary_heap_point_const_iterator_<
       Value_Type, Entry, Simple, _Alloc >::operator== (const binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc > &other) const
       [inline]
       Compares content to a different iterator object.

       Definition at line 121 of file binary_heap_/point_const_iterator.hpp.

Author
       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++					  __gnu_pbds::detail::binary_heap_point_const_iterator_< Value_Type, Entry, Simple, _Alloc >(3cxx)
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