Bugs

[izard]

I just bought a big and expensive programming book at Powell's, from MIT Press, and in one of the first meaningful code sample, in the very beginning I read:

#define PI = 3.1592654

WTF!!! There are 2 bugs in this line, and I paid 80 bucks for the book!

Btw I am staying in Portland until next Sunday, so if you are around plz give me a shout..

Comments

[juan_gandhi]

This is interesting.
Strangely, for many years I believed that FFP has some constants, including π... obviously, it was only in my implementation.

[malobukov]

Three bugs. You're supposed to #include <math.h> and use M_PI instead. If at some point in the future the value of π changes, you won't need to edit your code.

[juan_gandhi]

It changes while the curvature of the Universe is decreasing. We'll collapse when it reaches e.

[beldmit]

Just 2 missing digits. 0,5% difference. Fits all the practical purposes!

[norian]

шо, бумажные книги ещё производят? надо же ..

[fenikso]

Please do not hesitate to mention the name of the book :)

[izard]

"Th audio programming book". That is my new job, and I know nothing abut audio. (well, after first week on the job slightly more than nothing)

[izard]

Мне нужен был учебник "для самых маленьких" в новой для меня области. Тут ИМХО бумажная книга-справочник-учебник лучше.

[izard]

Good point about including math.h and M_PI, actually in the book they write about it on the next page.