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发信人: BlueBoy (蓝孩), 信区: Program
标题: The Ten Commandments for C Programmers
发信站: BBS 荔园晨风站 (Fri Mar 24 12:31:43 2000), 转信

The Ten Commandments for C Programmers
Henry Spencer
1 Thou shalt run lint frequently and study its pronouncements with care, for
verily its perception and
judgement oft exceed thine.
2 Thou shalt not follow the NULL pointer, for chaos and madness await thee at
its end.
3 Thou shalt cast all function arguments to the expected type if they are not
of that type already, even
when thou art convinced that this is unnecessary, lest they take cruel
vengeance upon thee when thou
least expect it.
4 If thy header files fail to declare the return types of thy library functions,
thou shalt declare them thy-self
with the most meticulous care, lest grievous harm befall thy program.
5 Thou shalt check the array bounds of all strings (indeed, all arrays), for
surely where thou typest
‘‘foo’’ someone someday shall type ‘‘supercalifragilisticexpialidocious’
’.
6 If a function be advertised to return an error code in the event of
difficulties, thou 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.
7 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.
8 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.
9 Thy external identifiers shall be unique in the first six characters, though
thave 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.

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