Related:

• Quote #33 The 9th Commandment for C Programmers (Annotated
  Henry Spencer) states thus: IX Thy external identifiers shall be unique in the first six characters, though this harsh discipline be irksome and the years of its necessity stretch before thee seemingly without end, lest thou tear thy hair out and go mad on that fateful day when thou desirest to make thy program run on an old system....
• The Fourth Commandment for C programmers: If thy header files fail to declare them thyself the return types of thy library functio
  hou shalt declare them thyself with the most meticulous care, lest grievous harm befall thy program....
• The Eighth Commandment for C programmers: Thou shalt make thy program's purpose and structure clear to thy fellow man by using the One True Brace Style
  even if thou likest it not, for thy creativity is better used in solving problems than in creating beautiful new impediments to understanding....
• The Seventh Commandment for C programmers: Thou shalt study thy libraries and strive not to re-invent them without cause, that thy code may be short and readable and thy days pleasant and productive.
  -- Harry Spence...
• The Sixth Commandment for C programmers: If a function be advertised to return an error code in the event of difficultie
  hou shalt check for that code, yea, even though the checks triple the size of thy code and produce aches in thy typing fingers, for if thou thinkest it cannot happen to me, the gods shall surely punish thee for thy arrogance....
• The Fifth Commandment for C programmers: Thou shalt check thy array bounds of all strings (indeed
  all arrays), for surely where thou typest foo someone someday shall type supercalifragilisticexpialidocious....
• The Tenth Commandment for C programmers: Thou shalt foreswea
  enounce, and abjure the vile heresy which claimeth that All the world's a VAX, and have no commerce with the benighted heathens who cling to this barbarous belief, that the days of thy program may be long even though the days of thy current machine be short....
• The Second Commandment for C programmers: Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end.
  -- Harry Spence...
• The Third Commandment for C programmers: Thou shalt cast all function arguments to the expected type if they are not of that type already
  even when thou are convinced that this is unnecessary, lest they take cruel vengeance upon thee when thou least expect it....