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Pseudocode is a generic way of writing source code without using any specific programming language. (However, some people see standardized pseudocode as languages in and of themselves.) Computer science text books often use pseudocode in their examples so that all programmers can understand them, even if they do not all know the same programming languages.

Often pseudocode uses the syntax of one common language (like C or LISP) for common operations like loops, and uses English language text whenever details are unimportant or distracting.

Pseudocode in Wikipedia

Many articles in Wikipedia use pseudocode to demonstrate how an algorithm or data structure works.

Our style of pseudocode uses keywords from C for the some common operations, and, like Python, uses indentation to distinguish the scope of things like loops.

Example operations


<variable> = <expression>


if <condition>
  do stuff
  do other stuff

Simple loops:

while <condition>
  do stuff

for <variable> from <first value> to <last value> by <step>
  do stuff with variable

Function calls:


Function declarations:

function <function name>(<arguments>)
  do stuff with arguments
  return something (optional)

Variable declarations:

declare <variable-name> as <type>

Array declarations:

declare <array-name>[<lower-bound> to <upper-bound>] of <type>

Composite data structures (also see Object Oriented Programming):

struct <name_of_new_type>
  <declaration(s) of internal variables>

Accessing fields of a composite structure:

<structure variable name>.<field name>

This standard still needs work. Care to /Talk ?

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Last edited October 1, 2001 1:27 pm by BlckKnght (diff)