Re eating one's own dogfood: We have the same term in our workplace (granted, only because I introduced it). My code is peppered with comments that say "TODO" and indicate something that ought to be done eventually, but a comment saying "DOGFOOD" (both keywords are always at the beginning of the comment, in all caps) means something that must be done before this program can be used even internally. It's a handy thing to search for, as the word "dogfood" is never going to appear in a quoted string - if it does, I can always just say "dog-food" or something - so even a case-insensitive search will come up with the right results.

Regarding zeroing the accumulator: I've done exactly the same thing when programming an Intel 80x86 (I started on the 8086 and moved up from there into the modern Pentiums). XORing a register with itself is the quickest and tightest way to clear it. Using "MOV AX,0" requires three bytes (opcode and two bytes of literal 16-bit zero), whereas "XOR AX,AX" is only two; it's even more noticeable with the 386-and-higher extended registers, where "MOV EAX,0" requires five bytes (four bytes of 32-bit zero). My C/C++ compiler always zeroes registers this way, so I'd assume it's still the best way (although I haven't studied opcode timing tables in ages, and probably both XOR reg,reg and MOV reg,imm take one clock).

不是代码注释，而是SVN在同一个文件上提交注释:

第一次提交(在测试人员返回结果后，再进行数十次提交):

Squashed some IPR mod bugs. The were big and juicy ones, too.

2日提交:

Squashed some more mod bugs. Those are some nasty bugs, them mod bugs...

3rd:

Squashed some more mod bugs. They are like cockroaches: they'll live through a nuclear war.

4th:

Squashed some more John bugs. They too are like cockroaches: they appear anywhere John goes. Wait. That doesn't sound right.

5:

Same John bug. It didn't die, just played 'possum.

是的，我厌倦了"修复bug"

下面是一个必须声明的局部变量，只是为了将一个常量传递给库函数:

// This only exists because Scott doesn't know how to use const correctly

/* Please work */

If you have reached this part in the code, then this program sucks.

在给一个朋友看了这篇来自《Coding Horror》的文章几个小时后，我看到了他对代码的评论:

// valdez先生是一个暴力的精神病患者。别惹他生气。