how to write a pseiudocode ?

[blogchama]

i write a c program of a phone book.now i writing the pseudocode for the program.
i added a search function under delete function book phone book.so user can search a phone number and then delete it.
so want to know how to write a pseudocode for that part?

what is the way to join these search and delete functions?

[MK27]

You can put functions and function calls in pseudocode.

[blogchama]

You can put functions and function calls in pseudocode.

can you plz give me a small example about that?i didn't get it.

[laserlight]

What is your code? You can just distill the C specific parts to become Python, I mean pseudocode.

[MK27]

Maybe it would be easier if you posted some of the pseudcode you already have. AFAIK, there's no standard for it, so you can write how ever you like.

What is your code? You can just distill the C specific parts to become Python, I mean pseudocode.

@blogchama: this is actually a good point, google some python and look eg.

if 1:
        for i in range(5):
                print i

[nadroj]

As MK27 said, there's no real "definition" or "standard" for pseudocode. I like to think of it as "English" with "invalid programming language code" (i.e. code that would probably produce an error, if taken verbatim). I'll try and write a small example of reversing a string.

char* reverse(char * str, int len)
{
  int i;
  for ( i := 0; i < len/2; i++)
  {
    char temp = str[i];
    str[i] = str[len - i];
    str[len - i] = temp;
  }
  
  return str;
}

algorithm: reverse
input: 'str', string to reverse
output: the reversed string
-----------------------------------
begin
  let len := length of str
  for i := 1 to len/2
    swap characters in str at positions i and (len-i)
  end
end

Of course its possible there are logic errors in either segments above, as I have quickly typed it up. If so, do not waste your time telling me, if you do then you are missing the point.

Also, sometimes the actual code is almost identical to the pseudocode (say in a factorial function), and so you can hardly distinguish between them. Of course it is still "valid" pseudocode, though. One key thing I'd like to make is that in pseudocode, if you want to use some "function" that is intuitive enough to understand (i.e. "swap"ping two characters), you just use it without defining it.

Again, keep in mind, there is no real format or standard to follow. You asked for an example, I gave you one.

[blogchama]

As MK27 said, there's no real "definition" or "standard" for pseudocode. I like to think of it as "English" with "invalid programming language code" (i.e. code that would probably produce an error, if taken verbatim). I'll try and write a small example of reversing a string.

char* reverse(char * str, int len)
{
  int i;
  for ( i := 0; i < len/2; i++)
  {
    char temp = str[i];
    str[i] = str[len - i];
    str[len - i] = temp;
  }
  
  return str;
}

algorithm: reverse
input: 'str', string to reverse
output: the reversed string
-----------------------------------
begin
  let len := length of str
  for i := 1 to len/2
    swap characters in str at positions i and (len-i)
  end
end

Of course its possible there are logic errors in either segments above, as I have quickly typed it up. If so, do not waste your time telling me, if you do then you are missing the point.

Also, sometimes the actual code is almost identical to the pseudocode (say in a factorial function), and so you can hardly distinguish between them. Of course it is still "valid" pseudocode, though. One key thing I'd like to make is that in pseudocode, if you want to use some "function" that is intuitive enough to understand (i.e. "swap"ping two characters), you just use it without defining it.

Again, keep in mind, there is no real format or standard to follow. You asked for an example, I gave you one.

thank all of you friends for your valuable advices.
i want to know are there any softwares to convert a source code to a pseudocode?
i

[Salem]

You're going the wrong way.

You should be starting with pseudo-code and ending up with code (not the reverse).

For what it's worth, your detailed pseudo code would be the comments in your real code.